Voice, Text, & Data: The 4G/LTE Prepaid Long-term SIM Card

Voice, Text, & Data: The 4G/LTE Prepaid Long-term SIM Card

If you're an exchange student, a long-term traveler, or a foreigner who needs a local number, this prepaid SIM in South Korea is your best bet.


The Rundown

  • This is the best prepaid 4G/LTE SIM card in South Korea that entitles you to calls, texts, and data for up to 90 days.
  • You get an initial credit of ₩40,000 (for the price of ₩30,000 only!) when you activate the SIM. Top-ups can be done at any major convenience store.
  • For your convenience, booking links are found below.

For pocket WiFi's in South Korea, also read:  Everyone's Connected with the KT Olleh 4G Portable WiFi Egg

How to Get This SIM

Head over to Indiway's website and create an account if you don't have one yet. Signing up shouldn't take more than 2 minutes.

The nice thing about booking this product with Indiway is that you will get more than what you pay for. The SIM card currently sells at ₩30,000 (around ₱1,450 or $28), but you'll get ₩40,000 worth of credits upon activation. Moreover, they won't charge you anything for the actual SIM, so you're technically only paying for your load. 

To buy the prepaid SIM, go to Indiway's page and select the date and quantity. Afterwards, check out and pay using these methods: PayPal, MasterCard, Visa, AMEX, Unionpay, etc.

Once your payment goes through, you will instantly receive a voucher, which you will need along with your passport to pick up your SIM Card at any of the following pick-up locations:

1. Hongik Univ. (Hongdae) Station - Travel Center 
KT Sinchon B/D 4F, 65, World Cup Buk-ro 2-Gil, Mapo-gu, Seoul
(1-min walk from Hongdae Station Exit #2)
Everyday 9am-6pm

2. Incheon Airport Terminal 1 - Travel Center 
B1/F, Travel Center
Everyday 7am-9:30pm

3. Incheon Airport Terminal 2 - Travel Center 
B1/F, Travel Center
Everyday 7am-9:30pm

4. Gimpo Airport - Travel Center 
B1/F, Travel Center
Everyday 7am-9:30pm

5. Seoul Station - Travel Center 
B2/F, Travel Center
Everyday 7am-9:30pm

Applicable Charges

Usage rates are as follows:

  • Data: ₩20.48 per mb
  • Call: ₩1.98 per sec
  • Text: ₩22 per text sent

If your run out of credits, you can visit any GS25, CU, 7-ELEVEN to top up.

  • If buying credits from GS25 or 7-Eleven, provide your number to the clerk and state the amount of top-up.
  • If buying credits from CU, pay the amount of top-up to the clerk. Find the 11-digit PIN in the receipt and call 080-013-0114 to apply the credits.


Long-term Prepaid SIM Card

  • PRICE: ₱1,741.95, if not discounted!
  • Prepaid SIM Card with an initial load of ₩40,000 (valued around ₱1,940 or $37)
  • Valid for ninety (90) days.

If you don't have an Indiway account, click here to sign up.


  • USIM Cards in South Korea work for phones that use Standard, Micro or Nano SIM.
  • Some people make the mistake of going to KT Olleh Roaming Center (1/F Arrivals Hall of ICN) to claim their SIM. Don't follow suit and proceed to the right pick-up location. 
  • After installing your USIM, restart your phone and wait for a couple of minutes. It usually takes a couple of minutes before it picks up the signal. 
  • You will still be able to receive calls and SMS for up to 15 days that your USIM has zero balance.
  • Make sure to top up! Failure to do so after 30 days of having a zero balance will deactivate your SIM. Once terminated, you are no longer able to extend its validity.
  • Your USIM will automatically expire after 90 days if you registered using your passport. If you would like to extend and re-register using your acquired Alien Registration Card, there will be a fee of ₩20,000, which includes a new USIM card (number will not change). 
  • No refunds are available once booking is made.
  • No changes in date or time of pick-up are permissible.


For more information, visit Indiway's website here.

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