Plan calculator
Your first payment is the SIM fee plus the top-up amount. Make your choices and the total appears right away.
SIM prices
This is for online activation. In-person activation has no fee, but costs 10,000 KRW for the SIM plus one month of the plan fee.
First cost of popular combinations
| SIM | Plans | First cost |
|---|---|---|
| KT Baro SIM 8,800 KRW | KT LTE 396 Monthly 39,600 KRW | 48,400 KRW |
| KT Baro SIM 8,800 KRW | KT LTE 459 Monthly 45,900 KRW | 54,700 KRW |
| LG Modu One-Chip SIM 8,800 KRW | LG LTE 396 Monthly 39,600 KRW | 48,400 KRW |
| LG prepaid eSIM 2,750 KRW | LG 5G 464 Monthly 46,400 KRW | 49,150 KRW |
| KT Baro SIM 8,800 KRW | KT LTE Basic 1 Monthly 12,100 KRW | 20,900 KRW |
What is included and not included in the calculation
- SIM fee: Baro SIM and One-Chip are 8,800 KRW, and GoGoB is 5,000 KRW. For eSIM, you pay a 2,750 KRW issuance fee by card. If you already bought a new SIM, you do not pay the SIM fee again.
- Monthly plan fee: With prepaid, you top up first and then use it. From the second month, you only top up the plan fee.
- Contract plans: You top up the whole fee for the contract period at once at the start, so the total goes into your first cost.
- Not included: The phone device price and overage charges for using more than the included allowance are not counted.
Fees and SIM prices are as of November 6, 2026. Please check the actual amount once more on the application screen.
First cost FAQ
How much is the first cost of a prepaid phone?
It is the SIM fee plus one month of the plan you chose. With Baro SIM and LTE 396, it is 48,400 KRW.
How much do I pay from the second month?
You only top up the plan fee, with no SIM fee. For contract plans, you top up the fee for the whole period at once at the start.
If I reuse my old SIM, do I skip the SIM fee?
No. A SIM you used before cannot be reused. Please prepare a new SIM that works with N-Telecom.
Do I have to top up on the day of activation?
Yes. If you do not top up, your number may be suspended the next day. Please top up on the day of activation.
Does in-person activation cost differently?
There is no visit fee. You pay 10,000 KRW for the SIM and one month of the plan you chose.
Are there sign-up fees or penalties?
Prepaid plans without a contract have no sign-up fee or penalty. For contract plans, if you cancel within the period, you must return the discount and support.
