Directly on your Android device
You can check your current month's usage right on Android. Navigate to Settings > Wireless & Networks > Data Usage.All SIM Internet Data Balance Check USSD Codes
- To know your Airtel 2G internet balance Dial *121*2# then enter 2 and proceed.
- To know your Airtel 3G/4G Internet Data balance Dial *121# then enter 2 and proceed.
- You can dial *121*51# and select Balance & Validity option to know your airtel data balance usage.
To check sawa postpaid internet balance, the best option is installing the My STC app. you will get plenty of other options and details as well. You can also check the remaining data by dialing *166# and press call. The other method is by calling helpline 1500, and you will know about the balance.
New customers can buy
data SIM online by visiting
Mobily e-shop
mobily.
data/
To activate and manage services:
- Send the subscription command, which is mentioned in the table above, to 1100 via SMS.
- Call Mobily Customer Care Center at 1100.
- Visit Mobily outlets.
Method of Payment
Monthly charges can be paid though auto-debit via a Korean bank account or a Korean credit card. Registration of a third party's bank account can be done at a KT Global Store, or through the KT foreign language customer service center (b1583).The most convenient and the easiest way to buy a SIM Card is to buy it online in advance. To buy it offline, you can purchase it at Incheon Airport or outlets run by Korean mobile service providers: KT, SKT, LG U+. Major convenience stores, such as GS25, CU, Seven Eleven, also provide SIM cards.
In the store you ask the clerk to recharge KT Mmobile prepay, pay desired amount and receive either a direct top-up or a PIN slip. With a 11-digit PIN call 080-013-0114 (for free) and follow the message on the line. Recharge will be finished at the moment and you will receive notification SMS message in real time.
Connect to "KT WiFi " SSID in any KT WiFi zone. Registration page will be open when you run your web browser. Click "Register WiFi prepaid card" button. Register by inputting the 12 numbers PIN code written on the prepaid card.
The SIM card costs ₩ 5,500 for 3G (Olleh simple) or ₩ 8,800 for 4G (olleh simple LTE). Nano SIM cards are available only with the 4G option.
Your phone or mobile devices must use 3G technology to roam in South Korea. This method tops the most expensive in terms of charge, according to many service providers in the US and Europe. There might be exceptions though.
Summary: the site was reliable and easy to use. Just let you know my experience with Trazy.com at Thailand. We've booked for Phi Phi Island tour with them, booking and payment have been confirmed.
1. Buy only a SIM card: directly from 7-Eleven for $10; or from someone on this forum; or buy a SIM card and phone from 7-Eleven and just use the SIM card (you can then sell the phone that came with the purchase). Then place the SIM card into that phone.
