English
KT mobile store in Seoul,
with help in English.
Buy a new iPhone or Galaxy, open a KT mobile line, or switch to KT — our staff will guide you in English at KT Store Sillim, Magok and Mokdong.
- English consultation for international customers
- Open Mon–Sat 10:00–20:00 and Sun 10:00–19:00
- KT Global Store for international customers at KT Store Sillim
Our stores
Store information checked on October 23, 2026.
KT Store Sillim
KT스토어 신림본점
- Address
- 1F, 1604 Nambusunhwan-ro, Gwanak-gu, Seoul
- Subway
- Right in front of Exit 4, Sillim Station (Line 2)
- Bus
- Village bus Gwanak 10, 05, 08 — get off at 'Sillim Station Exit 4' stop
- Hours
- Mon–Sat 10:00–20:00 · Sun 10:00–19:00
- Phone
- 02-878-8872 (+82-2-878-8872)
- Parking
- No parking at the store. Please use the nearby Sinwon Market public parking lot.
KT Global Store for international customers is located here.
KT Store Magok
KT스토어 마곡본점
- Address
- 1F, 747 Tower, 168 Gonghang-daero, Gangseo-gu, Seoul
- Subway
- 1-minute walk straight from Exit 6, Magok Station (Line 5), next to Olive Young
- Hours
- Mon–Sat 10:00–20:00 · Sun 10:00–19:00
- Phone
- 02-2666-8872 (+82-2-2666-8872)
- Parking
- 2 hours of free parking in the 747 Tower building.
KT Store Mokdong
KT스토어 목동본점
Closed for remodeling from October 20 to November 6, 2026. Reopens on Saturday, November 7. You can still reach us by phone or KakaoTalk.
- Address
- 1F, 219 Mokdong-ro, Yangcheon-gu, Seoul
- Subway
- About 170 m from Exit 2, Mokdong Station (Line 5), on Mokdong Rodeo Street
- Hours
- Mon–Sat 10:00–20:00 · Sun 10:00–19:00
- Phone
- 02-2605-5010 (+82-2-2605-5010)
- Parking
- Limited parking. Please use the nearby Rodeo-gil public street parking.
The KT shop right in front of Exit 2 is a different store. Look for KT Store Mokdong at 219 Mokdong-ro (Seoyeon Building), 1F.
What we can help with
New phones
iPhone and Galaxy models sold by KT. Try demo phones in store before you decide.
Same-day activation
Models in stock can be activated and taken home on the day of your visit. Please check stock by phone before visiting.
Plans for foreigners
Prepaid with a passport, postpaid with an Alien Registration Card — depending on your visa and stay period.
Number porting
Move your number from another carrier or MVNO to KT.
Internet & TV
Home internet and TV sign-up and bundle discounts. Ask our staff about availability for your address.
Trade-in
Sell your old phone in store with the Reborn MRI diagnosis (all stores) or Mintit ATM (Sillim, Mokdong). The price depends on model and condition.
Guide for International Customers
International customers can get KT mobile service consultation at KT Store. KT Store Sillim operates KT Global Store for foreign customers.
What to bring: Alien Registration Card, Permanent Resident Card, or Domestic Residence Report (for overseas Koreans). With a passport only, you can sign up for prepaid plans, which are valid for 90 days from activation.
Postpaid plans and device installments depend on your visa type, remaining stay period, and credit check. At least 90 days must be left on your visa to subscribe to KT mobile services.
Payment: prepaid plans can be charged with cash, credit card, or prepaid card. Postpaid plans require auto-debit from a Korean bank account or a Korean credit card in your own name.
SIM: USIM can be used for both prepaid and postpaid plans. Prepaid plans cannot be used with eSIM.
Minors (under 19) must visit a KT store with a legal guardian.
Internet and TV: please ask the store staff about availability for your residence.
Visit or contact a KT Store near you — store hours and locations are listed below. KT foreign customer center: 080-448-0100.
Frequently asked questions
Checked on October 23, 2026. Conditions for foreign customers can change — our staff will confirm them during consultation.
Can I get help in English at KT Store?
Yes. International customers can get KT mobile consultation in English. KT Store Sillim also operates KT Global Store for international customers. If you want to make sure an English-speaking staff member is available, call the store before visiting.
Can I open a phone line in Korea with only a passport?
Yes, but only a prepaid line. A prepaid line opened with a passport can be used for up to 90 days. For postpaid plans or long-term use, please visit again after you receive your Alien Registration Card.
What ID do I need for a postpaid plan?
Usually an Alien Registration Card, Permanent Resident Card, or Domestic Residence Report (for overseas Koreans). Whether you can subscribe, and how many lines, depends on your visa type, remaining stay period, and a guarantee (credit) check.
Can foreigners buy a phone on installments?
It depends on your visa type. For example, D-2 (student) and E-9 (non-professional employment) visas allow 1 installment line with a limit of KRW 1,000,000 as a basic standard, if at least 6 months of stay remain. Short-term visas (B-1, B-2, C-1, C-3, C-4) and foreign minors cannot use installments. Final approval depends on the guarantee check.
Can I use a short-term or tourist visa for a postpaid plan?
No. Short-term stay visas such as B-1, B-2, C-1, C-3 and C-4 cannot open postpaid lines or use device installments. You can open a prepaid line with your passport for up to 90 days.
How can I pay my phone bill?
Prepaid: cash, credit card, or prepaid card. Postpaid: automatic payment from a Korean bank account or a Korean credit card in your own name.
Can I use eSIM?
USIM can be used for both prepaid and postpaid plans. eSIM has some restrictions — for example, it cannot be used with prepaid plans — so please ask our staff.
Can I keep my number when I switch to KT?
Yes, in most cases. Prepaid or postpaid numbers from other carriers and MVNOs can be moved to KT Global Prepaid. Diplomatic staff and USFK members have some restrictions. We will check your conditions in store.
Can I change from prepaid to postpaid later?
Yes. Once you receive your Alien Registration Card, you can switch from prepaid to postpaid if you meet the conditions. Availability and number of lines depend on your visa and the guarantee check.
Can a foreign minor open a phone line?
Yes. A foreign minor needs their own Alien Registration Card or Domestic Residence Report, the legal guardian's ID, and a document showing the family relationship. Registering the legal guardian is required, and device installments are not available for minors.
What documents do USFK members need?
USFK members need their military orders with a US driver's license or State ID. Family members need orders that include family information, with a family member's driver's license or family member ID card. Device installments require a prior review.
Are KT Store locations open on Sundays?
Yes. All three stores are open Monday to Saturday 10:00–20:00 and Sunday 10:00–19:00. Please call ahead for public holidays.
Can I take the phone home on the same day?
Yes, if the model is in stock. After consultation and sign-up checks, the phone can be activated the same day. Stock differs by color and storage, so please call before visiting.
Can I try a phone before buying?
Yes. All three stores have demo phones so you can check the screen size, weight and camera yourself before deciding.
Do I need a reservation?
No, walk-ins are welcome. You can also book a visit time through Naver Booking to reduce waiting time.
Is there a KT customer center for foreigners?
Yes. KT foreign customer center: 080-448-0100. For purchases and sign-up, visit or call a KT Store near you.