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Korea SIM card Blue Plus (4G LTE Unlimited Data + Local Voice) Recommended New 적립금

Basic Information
Product Korea SIM card Blue Plus (4G LTE Unlimited Data + Local Voice)
Price $28.00
Special Offer $22.90

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Korea SIM card Blue Plus (4G LTE Unlimited Data + Local Voice)

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The Exact USIM You Have Been Looking For.
Everything is Unlimited. What Else?

We strongly recommend you to compare! Check it Here, now.

Please check here(click) if your phone is unlock before purchase.

unlimited data

We are answering tens of inquiries by the facebook messenger everyday.

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There are Reasons for the Best Seller.

    The best mobile carrier that provides the highest quality.(Genuine Premium KT network)

    Pre-order Anytime & Pick up Anytime Guaranteed (in Incheon Airport)

    Free Delivery to Everywhere in Korea (Even in Jeju island and mountainous areas)

    Complete Offline Support in Airports (Pick Up Desk and Staffs wearing Red Cap)

    Realtime Online Consulting (100% Response by FB Messenger)

Service Information

KT, Korea Telecom Network, the Most Reliable Mobile Network Service in Korea (Everywhere Including Jeju island)

4G LTE full speed 10GB + Additional full speed 2GB Everyday + Unlimited at 3Mbps
※ 3Mbps is fast enough for all conventional internet. You can even enjoy Youtube streaming with it.

Korean phone number(010) + Voice Call(Unlimited) + Text Message(Unlimited)

You can apply for activation at anytime and enjoy the service immediately. (Unable to activate from 23:45 to 00:15)

Tethering(Mobile hot spot or Data sharing) is available.

Compatible with all Smartphone (support all the SIM types; Nano, Micro and General size)

No need to return / No credit card open. (After Usage, Keep it as a Souvenir or Just Throw Away)


unlimited data

  5 Days   US$ 28US$ 22.9 (18% OFF)

  7 Days   US$ 34US$ 27.9 (18% OFF)

10 Days   US$ 38US$ 31.9 (16% OFF)

15 Days   US$ 48US$ 40.3 (16% OFF)

30 Days   US$ 70US$ 58.9 (16% OFF)

60 Days   US$ 140US$ 109.9 (22% OFF)

90 Days   US$ 210US$ 151.9 (28% OFF)

Purchase Procedure

Check if your smartphone is unlocked.

When ordering the product, write down the pick-up date, your name, and your passport number exactly.

Your product will be sent at upcoming 2:00PM (GMT+09:00) every working day.
Once it is sent out, it may takes 1~2 working days to reach you.

When you want to start to use it, please activate the USIM at 'krsim.net/reg'.
If you uploaded all the information well, you can enjoy it immediately.


This USIM can be activated only with Foreign Passport which is used for immigration in Airport.
한국인은 사용 불가 상품입니다.

Period extension is impossible by any cases.
This product can not be used for self-identification.

You can enjoy LTE with the unlocked phone which supports Band1(2.1GHz), Band3(1.8GHz) and Band8(900MHz).

The period is calculated on day basis. If you purchased 5 days and activated at 9PM on June 1st, you can use it until 12AM on the 5th.

It can't be used for self-authorization. Therefore, it cannot be used for online services that require identity authentication.

If you use international calls, the service period you purchased will be reduced.
Additional international calling cards(available at convenience stores) are recommended for international outgoing call.

There is no limit to the number of purchases, but keep in mind that only one SIM card can be activated with one passport.

Blue Plus has unlimited calling but if you use a paid call like the phone number that starts with 1588/1577/013/050/060 and video call, the period of service will be shortened than the period you purchased.

Free Delivery Service In Korea

You can get your SIM card at your hotel or home by free delivery service.
(If it is a hotel, please let the front know and receive the parcel to prevent loss issue.)

Please select 'delivery service' in option and write down the address(hotel name and room number), name and check-in date in order form.
(If the address is written in Korean, it would be better to make the delivery clear.)

We send parcels at 2PM(GMT+09:00) on every working day.
Once it is sent out, it may takes 1~3 working days to reach you.

Customer Center

Please do not hesitate to contact us for any further questions.

For inquiries about product, order and delivery, please contact "krsim " on Facebook Messenger.)
(Please use the messenger at the bottom right of the shopping mall main page.
Responses may be delayed depending on the operating hours, but we'll give you a 100% answer.)

For any questions about registration or technical support after receiving the product, please contact below.

  1. · Call : 070-4880-1339
                   114 (On the activated phone)
    · Mail : egsim@codemobile.co.kr
  2. · Operation Hours
    Monday to Friday : 9AM ~ 6PM

4G LTE Unlimited Data Prepaid eSIM in Incheon International Airport, for Your Trip to South Korea
You can pass Covid-19 related quarantine and immigration easily by applying the Korean Phone Number(010) for Q-Code or K-ETA

4G LTE Unlimited Data Prepaid eSIM in Korea at the Lowest Price starting from US$ 2.9 | The very eSIM in the Incheon International Airport at discount | Korea eSIMs with SK Telecom(SKT), LG Uplus(LG U+), kt network are the most reliable mobile communication service and solution providers in South Korea. Korea eSIM Red offers extreme comfortable experience with unlimited data and Korean phone number(starting with 010) with which you can pass the Covid-19 related quarantine and immigration or apply for KETA as your phone number in advance. | No matter how much people use mobile data, they can enjoy Youtube streaming 24 hours during their stay in Republic of Korea with Korea eSIM Red. Korea eSIM Sky provides 4G LTE unlimited data at full-speed, Korean phone numbers(starting with 012) and unlimited incoming calls and messages. | Especially, Everyone will experience the world fastest internet here in South Korea with the Korea eSIM Sky offering 4G LTE full speed at over avg. 220 Mbps. Korea SIM Cards powered by SK Telecom, LG Uplus and kt(Korea Telecom) network are a Authentic and Reliable Companies, that provide the best communication solution in Korea for your personal, local and international communication with unlimited data provided by 4G LTE Prepaid SIM, eSIM and WiFi EGG. With advanced 4G LTE Technology, Korea unlimited data and prepaid SIM cards, eSIM and WiFi Router with SKT, LG U+ and KT network, are designed to provide seamless always connected internet and personal local and international crystal clear voice calling at lowest prices. South Korean unlimited data and 4G LTE prepaid SIM and eSIM help you to connect to internet with no concern and to your loved ones at exciting rates without any voice attenuation or distortion through SK Telecom and kt(Korea Telecom) network. Our Korean unlimited data and 4G LTE prepaid SIM, USIM and eSIM users can now avail the opportunity of enjoying lowest rates in making and receiving calls and SMS service across Korean territories using local number over a lighting fast data connection. Korean SIM, eSIM and Wifi EGG offer all new prepaid services and packages that are best designed for diverse customer requirements. 4G LTE SIM card and eSIM in Korea allows you to stay connected with your relatives at unbelievable rates and premium telecommunication qualities with SKT and KT network. South Korea USIM card and eSIM welcomes you to experience its comprehensive customer support system including rapid complaint responses, and billing statements. We love to make things easier and fast for our valuable users hence we integrate latest updates and trends in our prepaid SIM cards and eSIM in Korea. We encourage you to browse our wide range of packages on Sim Card Korea and incredible offers keenly prepared for you. Please enjoy your very own Korean prepaid USIM Card, eSIM and Pocket Wifi EGG (router) availing the best services like never before. You can pick them up at all the South Korean International Airports including Incheon airport (Terminal 1, Terminal 2), Gimhae airport (Busan), Gimpo airport, Daegu airport and Jeju airport and at international harbors including Incheon Harbor and Busan harbor.

Total count : Total rate : /5.0

Please leave your reviews here about Korea SIM card Blue Plus (4G LTE Unlimited Data + Local Voice)

Product Reviews
No. Title Posted by Date View Point

10 Days Blue Card 로 하였는데, Voice Talk 이 되어 Local Phone 하는데 문제없이 편하게 다녔어요.

s**** 2023-07-13 63 5points

I didn't get to test my SIM yet, but needed to clarify something upon ordering one, and the customer service was awesome! Fast, informative, straight to the point, and super helpful. Great service👍

L**** 2022-10-21 79 5points
101 Great customer service, my SIM card was delayed due to a covid outbreak in the courier service (not this companys fault!) but as I couldn't speak Korean I wasn't able to phone up to sort something out. The manager of Korea SIM Card phoned and sorted it all out, I received with new SIM card within a few hours. Very kind customer service, would recommend! 10/10번역 보기댓글 1개좋아요댓글 달기공유하기

H**** 2022-09-27 89 5points

Excellent & Superb customer service!  Answered quickly all my questions and solved registration problem even in ChuSeok holidays!  (Ordered Korea SIM Blue)

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K**** 2022-09-23 107 5points

Solved my issue within minutes! Fast delivery and service! Would recommend to get their simcard!

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N**** 2022-09-01 157 5points
98 I recommend buying Korea SIM card to have unlimited data to look for places in map and have Korean phone number so you can do online shopping include tickets.Also I have good experience with their chatting service that I was able to solve problem to activate a phone with their warm support within 30 minutes.  Thank you

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K**** 2022-06-03 176 5points
97 They were very helpful from the very beginning. They gave all the information needed before I even came to Korea.They were also very helpful with setting my SIM once I arrived.Totally recommend!

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A**** 2022-04-25 148 5points

Very good service. They checked the location of order for me and notified me when it arrived. Also helped me to activate sim card. Great service 

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P**** 2022-02-14 178 5points

Ordered a blue plus sim card from them to be delivered to my partner's apartment in Korea and it arrived within a few days. I had trouble setting it up and contacted their customer support on facebook and they promptly helped me and it was working within an hour! overall super convenient and easy

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E**** 2022-02-14 192 5points
94 This is very helpful service, especially during COVID. I needed a celllphone to receive the test result and it perfectly worked for me.Highly recommended!!!

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S**** 2021-09-29 219 5points

Excellent customer service, answered fast and solved all my questions. 

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K**** 2021-09-29 215 5points

Excellent customer service, answered fast and solved USIM registration problem!

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Y**** 2021-09-15 214 5points

The best support and SIM I ever got!

Staff always been available even at night or weekend. They replied to all of my questions very detailed politely with incredible speed! :)

The SIM card is fast as they advertised without any complaints.

Once I get back to Korea I definitely going to use your services again! Thank you and keep up your business alive! ☺️

Regards: Gabor from Hungary 🇭🇺 

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G**** 2021-08-01 220 5points

Very responsive and fast! Helped me set up my SIM card. Thank you so much. Recommend! Very fast internet too!!

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K**** 2021-07-19 226 5points

I bought a blue sim, at first there was a problem of activation because of my passport but the customer service quickly solve it. They were very fast and helpful.

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C**** 2021-05-26 238 5points
88 Popular message U**** 2020-11-21 307 5points
87 Amazing customer service !! English speakers:)Popular message N**** 2020-11-19 293 5points
86 I've used Korea SIM Blue many times. It has always been fast, and the included outbound voice minutes have been helpful. Customer service has helped me many times as well, and I can attest that they are helpful both during the sale and long afterwards, even after the SIM card has expired. Highly recommend the Korea SIM Blue when staying in Korea.Popular message S**** 2020-11-18 350 5points

Make sure to a activate the SIM card by registering it before use. I wasn't aware of that and mine got disconnected. It took a few hours to get the help I needed to resolve this issue. Once I reached someone, it was easy to resolve.

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M**** 2020-11-12 279 4points
84 Customer service is excellent and very kind. I highly recommend.Popular message S**** 2020-07-29 309 5points
83 They were super quick to respond and helped me resolve my issue promptly. I'd highly recommend them!Popular message B**** 2020-07-24 324 5points
82 Very nice customer service and always respond in a decent amount of time ! ☺️Popular message C**** 2020-07-24 294 5points
81 Popular message J**** 2020-07-07 301 5points

I bought the Korea SIM card Blue for USD64. Pick-up at the airport as well as activation went smoothly. However, about 4 days into using the SIM card, I started to receive marketing calls, prank calls and even calls from unknown sources telling me that I owed them money. I also received calls in which the caller constantly referred to me as another person. I did not use this number for any purpose except for:

1) Picking up the government's calls (I am under compulsory self quarantine due to the Covid-19 situation) and

2) For a one-off food delivery service (which I had used many times before in Korea and not received any weird messages).

All in all, I feel pretty disappointed after reading all the good reviews about purchasing a SIM card from this website, I did not expect to have to face these issues.

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s**** 2020-05-13 423 2points
79 Best customer service! Purchase online and pick up at the airport, or have delivered to you. Super easy install and set up instructions provided with FB messenger customer service available with quick responses. I've used the service 4 times now. Thanks so much!Popular message J**** 2020-03-11 370 5points

한국에서 10일권 사서 아주 잘 사용했읍니다. 데이타외에 전화 통화가 필요해서 저한텐 요긴했고 전체적으로 편하고 연결상태도 아주 좋았어요. 가격도 10일간 $31.90. 만족하게 쓰고 갑니다. 유심칩 갈아주고 개통 해준 최재원씨에게 감사 드립니다.

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A**** 2020-02-05 351 5points

Maybe this SIM card could be the best option for who visiting Korea.

I've experienced two times and they are easy to install, 24 hrs ready to support customers even in holidays, very kind and detailed.

잘 이용했습니다. 감사합니다.

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J**** 2020-01-31 362 5points

1st time in Korea, bought Korea SIM card at 7-11 in the airport. Activation was easy, was using data even before I left the airport. I had a question about kt wifi, messaged Korea SIM on Facebook Messenger. They replied and answered my question so fast. So great!!! 👍

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J**** 2020-01-20 352 5points

Had a hard time getting this to work but they were very helpful in replying to my questions and got it to finally work.

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J**** 2019-12-23 305 5points

I ordered a blue sim card for my mum (in her 70’s) to pick up at the Incheon airport. I was concerned though that she would not know how to replace the sim. But the time she arrives at the airport is 9pm, outside their office hours, so I thought she couldn’t get help around that time.So I asked a staff via facebook messenger if they have a retail store for her to visit another day and get assistance. The staff then considered and arranged with SevenEleven (a 24-hr convenience store where the sim card to be picked up by mum) and helped replacing the sim on her phone.Mum was really happy that her phone with the new sim was working well and especially with the staff who were so kind to help her. Thank you so much for offering this service outside your office hours! Really appreciate it.

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S**** 2019-10-25 381 5points

Really good sim And Customer service support is really quick. Thank you so much.

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C**** 2019-10-10 358 5points

I went with this company because they were the only company had 15 days package. Pick up was very easy. I had a trouble setting it up (make sure you update on passport information even if you don't see KT or LTE on the top bar) they were VERY quick with email, facebook! I am so glad I made the right choice. This sim card is going to make my trip so fun!

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박**** 2019-08-26 396 5points

Easy to use, easy to set up, and customer service was patient and outstanding. Highly recommened.

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T**** 2019-07-03 362 5points

I had trouble activating my SIM and they did it very quickly and nicely! Thank you!

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H**** 2019-07-03 394 5points

Korea SIM card good service and helpful for me when my data card can’t activate. Thanks

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M**** 2019-04-12 467 5points

Korea SIM card customer service is so nice and helpful.I have a problem with one of the provider i used in korea when im already back in my home country. Fortunately, i stumbled on Korea SIM card website and got connected with their customer service, and they were happily helped me out contacting the provider for me. Thank you so much for your help. My issue has been resolved thanks to you guys.

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G**** 2019-04-09 461 5points

 Korea SIM card was very helpful picking out the right cellphone plan for 3 phones for 60 days. He answered all my questions and provided best price. THANK YOU

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S**** 2019-03-18 431 5points

Visited Seoul in May 2018 and was so impressed by their efficient customer service that I’m using their services again for another trip to Seoul this month! Thank you for the easy transition and allowing me to enjoy Korea with no mobile/internet issues!! Highly recommend!

Gwen Palmer

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G**** 2019-03-15 458 5points

Perfect service! Delivery is super fast and reliable, connection is flawless all the time and the customer service is exceptional

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S**** 2019-01-11 446 5points

Amazing Service really nice support system and they are there to help you out if you need help delivery is fast and reliable as well

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J**** 2019-01-11 439 5points

심카드 빼놓고 심카드 설명서랑 모두를 버렸는데 서비스센터에서 너무도 친절하게 알려주셔서 너무 잘 썼습니다. 감사합니다~

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D**** 2019-01-11 459 5points

NICE. REALLY NICE. It's my second time purchasing products from this site and I really liked both the service and the product itself. No problem overall, the explanations on the instructions leaflet that comes with the sim card are well explained and more important the staff is really kind and always available. :) The few times I needed to contact them, they were always kind and helped me resolve my problems as soon as they could. I must say I really appreciated that. Therefore I truly recommend Korea Sim.net〜The service is on point, the staff perfectly know how to deal with clients and the products are great. In addition, there are several products you can choose from depending on your needs. Thank you Korea Sim <3 감사드려요! ^^ 좋은 하루 보내시길 바랍니다〜

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C**** 2018-11-02 523 5points

The trip to Korea was too peaceful..

No matter where I am, Data and Call is Nice..

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A**** 2018-10-15 498 5points


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n**** 2018-10-02 467 5points

I recommend you to live here without worrying about it. Because it is a great experience to come to Korea and enjoy the Internet at this speed.

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b**** 2018-10-02 482 5points

A true and a good company is being mustered by the level of their service, and mainly on times after you have already purchased the product.

And in Korea SIM I have found both. The service, the help and all they did for me before the actually purchase and pick up of the sim card was simply great.

But not less, also after 3 days after receiving it and facing an activation problem the Korea SIM support team took great care of me and handled all fast and in an efficient way. 

So I definably would recommend to but a Korea sim card.

the only problem I offer Korea SIM to fix is that those sim cards are only for tourists, and yet, the sms you get from them is in Korean.

thank you Korea SIM for a wonderful service.

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A**** 2018-10-01 539 5points

Merci beaucoup. Vous avez été très utile et agréable ! Les prix sont très abordables.

Ami.e.s français, n'hésite pas !

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S**** 2018-10-01 649 5points

it's good but should have guideline for user to use easily

Re : Thank you for your choice and review. But, on the product manual you have, the guideline was well written. :) I recommend you to read it carefully. Have a wonderful trip~!

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T**** 2018-10-01 567 5points

The best choice for internet in Korea. It might be a little expensive, but trust me is worth it. You don't have to worry on searching for a SIM Card in Korea, when you arrive at the airport it will be separated to you. So the moment you arrive until the day you leave Korea you will have an unlimited internet access. And the Facebook staff is always thoughtfull and patient to assist you in everything you need.

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A**** 2018-09-28 488 5points

Very impressed by this company's customer service. I was scheduled to vacation in Seoul in July, but ended up having to undergo emergency surgery at home and was grounded. In trying to recover the major costs of my cancelled trip, I'd completely forgotten about the little details like SIM cards. KRSIM emailed a follow-up after I was supposed to have picked up my card, checking to see if everything was OK. When I told them what happened and forwarded them the hospital's letter, they confirmed I'd not picked up my card and issued an immediate refund with their sympathies. They were under no obligation to do so. Attentive, honorable people over there. If I finally make it over to Seoul, I would be more than happy to patronize their business and encourage others to do so as well. So nice to find good, honest people in the tourism industry.

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J**** 2018-09-18 492 5points

I have great experience with this website and it is easy and friendly use and I got SIM card fast less than 24 hours by ordering it online Highly recommend for 30 Days usage or less if you are visiting South Korea

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A**** 2018-09-18 460 5points

I recommend this service because is really easy to pay and get the sim card. The Support service is excellent, they support agents are very kind and they solve all the issues with great dedication, even on weekends.

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A**** 2018-09-18 419 5points

Convenient pick up at Incheon airport. The staff helped us set up the card. Good connection throughout the entire trip.

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M**** 2018-09-03 478 4points

It is so usefully. Good service, i can use internet in everywhere, good connection. Nice to help me find the way easily.

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J**** 2018-08-31 442 4points

The signal is 4G+ and i really loved it.. When my friend are keep looking for the public wifi, i can keep calm because this sim card really useful.. Furthermore, its more affordable than rental the portable wifi if you are travelling alone for a long time..

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I**** 2018-08-30 474 5points

Always an excellent choice to buy and use this SIM card for my Korea trips. Fast data service and very convenient collection.

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L**** 2018-08-23 440 5points

Quick replies. Friendly. Speaks English! Fixed a problem right away.

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W**** 2018-08-20 475 5points

In terms of data speed, this would definitely be a 5! : ) Network is very much reliable.

However, the ease of pick-up can still be improved. The lines are long, and is rather confusing because the booth is rather difficult to find in the departures area.

Otherwise, I would very much recommend getting this sim!

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m**** 2018-08-06 486 4points


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小**** 2018-08-02 505 5points

They were very polite and patient when I missed my pick up for the SIM card. Helped me through the process, gave me several options, and checked to make sure everything went well!

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H**** 2018-08-01 468 5points

Stanley has been exceptionally helpful and very responsive on FB messenger and he answered all my questions very promptly and even went out of his way to find the contact centre number and plan for me. I am very impressed with the quality of service given by krsim and would definitely purchase a sim from them! Thank you Stanley! :)

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A**** 2018-07-23 553 5points

The sim card was very convenient as I was able to find my way through and hotspot my data to my traveling companions.

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h**** 2018-07-13 505 5points

the man is very kind,language is very good,quite helpful.

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W**** 2018-07-04 494 5points

If you’re in need of fast and reliable 4G LTE + 100 minutes of outgoing calls and 100 outgoing texts (incoming is free), make sure to purchase in advance on their website or just find a booth at the airport terminal. Receiving and activating my SIM took only a couple minutes without any hiccups. I had the 10 day SIM Blue plan, which was cheaper than any of the competitors because of the online discount. I travelled mostly in Seoul and Busan but also went out into the countryside and I still had strong signal no matter where I went.Also, whenever I had a question or issue, the Facebook messenger customer service agent was very helpful.

I highly recommend this service when visiting Korea.

David Sang Hun Kim

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D**** 2018-06-28 556 5points

Really easy and fast! Got it done within 5-10 mins and it worked perfectly! Data was excellent and I could share it with my Friend via hotspot (good for saving money). Climbed Mt. Hallasan and I could still receive signal the whole way!

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C**** 2018-06-25 550 5points

Everyone at the company was amazing!!! They are all such friendly people and were so helpful. I highly recommend these guys �

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J**** 2018-06-25 500 5points

 激动激动鸡冻 :)我本来想租个WIFI蛋,可是不想原地还件啦,充电啦,我会烦呢。所以这次我买过了这家的手机卡,我直接在网站买过了。下飞机后我就开始找WORLDROAMING取台去了,从门出来就容易找到了那个地方。虽然手机卡使用前我得用护照注册,可是注册完就能使用了。注册不是那么复杂的,感觉2-3分钟而已。这个商品是旅游时必备品。谢谢!

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慧**** 2018-06-21 574 5points

awesome! it's first time what I used. it was a nice thing, has good price and good contents. definitely, I am satisfied. So I'd like to give five stars. As for sim, User just has to do in instruction before use.

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j**** 2018-06-21 515 5points

hello! I LOVE KOREA! I've used sim for 7days. it was amazing!!! I had to register, it made me a little bit bother, anyway I was comfy with sim card. actually I thought I get used to living without phone during I was in korea but I couldn't leave a phone 24/7.

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s**** 2018-06-20 531 5points

sim made my trip better, I could save data for when I really need it. sim card is an important role on travel. I still could touch my families and friends with sim card. I really really appreciate to staff who helped me. Korea is one of the most awesome places I've ever been. so I hope that you guys come to korea for visiting, enjoy with sim card!

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a**** 2018-06-20 531 5points

Best customer service! Purchase online and pick up at the airport, or have delivered to you. Super easy install and set up instructions provided with FB messenger customer service available with quick responses. I've used the service 4 times now. Thanks so much!

Joshua Blaylock

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J**** 2018-06-20 505 5points

Really good and fast. Very reliable in terms of data coverage and speed and really worth the money.

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F**** 2018-06-18 492 5points

Amazing service that was super helpful for our needs! Definitely the place to go if you're a foreigner needing a SIM card in Seoul.

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V**** 2018-06-04 547 5points

We received amazing service at this location and the staff was incredibly friendly and helpful. They speak very good English, and are wonderfully accommodating. Would definitely recommend this place to anyone in need of a SIM card, especially foreigners!

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E**** 2018-06-04 535 5points

It’s so convenient that I can get the SIM card easily at Incheon airport by showing the receipt on mobile. The mobile signal was good and I could access to the internet anywhere in Seoul without a problem!

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H**** 2018-06-01 514 5points

Easy to locate the pick up desk in the airport, easy to use, and fast connection!

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K**** 2018-06-01 511 5points

Superb. Recommended.

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S**** 2018-05-26 531 5points

The pickup location is really close and nice.

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h**** 2018-05-23 574 5points

I have never found unlimited data service with phone number at this price but here.

Absolute solution.


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T**** 2018-05-15 598 5points

It suddenly didn't work as soon as I used it.

I was so embarrassed that I asked for help in a Facebook message.

He asked me if I had done activation...!

Then I did STEP 3 as per the manual :)

Luckily, it was used right away 5555555

Thank you for helping me

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S**** 2018-05-04 526 5points

LeeYoo Cheon

Ifyou gonna buy a south korea sim card, here and this is the one you need :D

The internet speed is fast and the crew super helpful! And main point is There’s no issue will be left once you finish using the sim card!

Due prev visit now i had issue about to use another sim card :( but this friendly crew who cant lemme knw he or her name lols... he or she did help me on this issue... never enough to say thank you :)

And again If you gonna buy a south korea sim card, here and this definitely is the one you need :D Strongly recommended!👍🏻

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L**** 2018-05-04 580 5points

Outstanding customer service. I was in the city and couldn’t get prepaid SIM from KT shop near Gangnam station. In desperation I got WiFi at nearby restaurant and found this place. I messaged them via FB messenger and got reply almost immediately (earlier today 8:30pm Korea time). The customer service rep went out of his/her way (couldn’t tell) to help me even sending me the exact location of the mini mart that sell the Prepaid SIM. The CS rep even called the mini mart to check if they have the SIM in stock! Seriously outstanding service. This CS rep solved the problem in 10 minutes what incompetent staff at said KT shop couldn’t in one hour

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O**** 2018-05-04 541 5points
21 The Facebook message service at krsim is great.I am really impressed by the accurate and kind answers.Every time I visit Korea, I will buy it.Popular message N**** 2018-04-17 655 5points

Great SIM and value. 10GB of unthrottled data (data can still be used after) for 15 days. To extend, just use the app and pay an extra fee.  It was the only Sim I could find that allowed top-up and had a 15 day option (instead of 10 and 30) so this was a no brainer. There's also free access to KT wifi via KR SIM customer service, which is a Lifesaver when you exceed the 10GB and want to watch videos on long train rides! Re VOIP calls, FB calls work.

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J**** 2018-04-12 586 5points

The counsellor on Facebook messenger is always ready to answer. Unbelievable. That is so impressive.

Mobile internet service quality is second to none. outstanding! Never experienced anywhere.

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L**** 2018-04-09 675 5points

The best sim as far I know. Ive never found more attractive South Korea prepaid SIM than this. Recommended.

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M**** 2018-04-09 626 5points

Korea Sim went above and beyond to help me during my trip. I had purchased a Blue LTE sim which for some reason would only connected to 3G. After various failed attempts to connect to the LTE network, I was content with using the 3G network for the rest of my trip but was told by staff that I paid for LTE and deserves to use LTE. They went out of their way to reset the values for me and by day two I was on the LTE network! Definitely recommended!

Facebook review - Kathy Zhao

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K**** 2018-03-29 599 5points

외국에서 친구 올 때마다 하나씩 선물합니다. 전화번호, 통화도 할 수 있어서 한국 내에서 꼭 붙어 있을 필요도 없이 서로 연락하기 딱입니다. 데이터 속도에 감탄들 합니다. ㅋㅋㅋ

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혜**** 2018-03-19 597 5points

I always use this SIM my travel in Korea.You can find this usim at Myeongdong or Hongdae convenience stores.But it's much cheaper to buy it onlineDon't be nervous. If I did not receive it at the airport, they said they would send it to the hotel.But I received it at the airport.It's so easy to find a pick-up desk.I applaud this SIM card

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J**** 2018-03-16 594 5points

I tried to activate the SIM by online at '4AM'. And it was done immediately!! It must be an automatic process.

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A**** 2018-03-14 542 5points

If the advance purchase makes you nervous,


Please use this message.

This page message away my anxiety.

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A**** 2018-03-14 583 5points


今回新しく出たblue sim cardを使用してみたけど本当によかったです


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k**** 2018-03-07 703 4points
11 simkorea.blog has brought me here.The information there was awesome.I recommend you all to refer the site.Korea sim blue was enough for my trip.Popular message R**** 2018-03-05 632 5points

It was easy to find the booth for the simcard. The internet was fast and the signal was good, even in areas outside Seoul. Will buy again when I go to Korea soon.

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K**** 2018-03-02 652 4points

This is really great.

I forgot prepaid sim card and ordered it 4 hours before I left.

Frankly, I knew I couldn't play pick-up

But I could get a sim card when I arrived at Incheon Airport in Korea!!!!

If you have a problem, try using Facebook messages.

Krsim company service is incredible.

I really want to recommend

Trust me!!!!!! :)

For your information, I bought blue sim card.

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S**** 2018-02-28 678 5points

Fast service and data card works just fine. Confirmation email came quickly too and directions/ instructions were very clear. Satisfied customer.

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R**** 2018-02-26 611 5points

Thanks Krsim.net for providing such service! It was hassle free. I will definitely use krsim in the future!

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P**** 2018-02-26 643 5points

This data plan was awesome! Super recommended for South Korea travelling. With high speed internet, you can post your photo and video to social media without worry in anywhere anytime whenever you like!

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J**** 2018-02-26 625 5points

No hassle and worry-free. Easy pick up at the airport and no data distruption in all locations I've been. Super convenient and worth the price.

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翔**** 2018-02-23 657 5points

The internet speed is very stable and fast enough to stream any video online i.e. youtube, netflex with no issue. Highly recommend to use it during travel in Korea.

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j**** 2018-02-22 653 5points

The signal is 4G LTE and i really loved it.. When my friend are keep looking for the public wifi, i can keep calm because this sim card really useful.. Furthermore, its more affordable than rental the portable wifi if you are travelling alone for a long time.. <3<3<3<3<3<3<3<3<3<3<3♡

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L**** 2018-02-21 642 5points

Great one!! I got the confirmation that provides me with clear instruction to get the SIM card at Incheon Airport. And the SIM card is with fast speed.

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J**** 2018-02-21 634 5points

Surf everywhere. You will find yourself buying here. :)

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S**** 2018-02-21 661 5points

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