SKT 4G and 5G mobile coverage map
Check the SKT network before you sign up. Sogudo calculates 4G and 5G mobile signal propagation from the available antenna data, for every address on the map. Enter yours to see the expected signal.
SKT map
- Last generated
- October 15, 2026
- Technologies modelled
- 3G · 4G · 5G
- Population density
- GHS-SMOD R2023AYes
- Terrain (line of sight)
- GEDTM30 v1.2Yes
- Resolution
- 30 m
How this map is built
Antenna azimuths are not published for South Korea: coverage is drawn as circles around each site.
0% of the sites have a published antenna height; the model assumes 35 m elsewhere.
Terrain: GEDTM30 v1.2 — Global Ensemble Digital Terrain Model, 30 m (CC BY 4.0). Built on Copernicus WorldDEM-30 (GLO-30), ALOS World 3D-30m (AW3D30).GEDTM30 © OpenGeoHub (CC BY 4.0), produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA, all rights reserved, and ALOS World 3D-30m © JAXA
Population zones: GHS-SMOD R2023A (Global Human Settlement Layer, degree of urbanisation), epoch 2025, 1 km (CC BY 4.0).© European Union, 1995-2026 — GHSL, Joint Research Centre (CC BY 4.0)
Test the SKT network at your address
- Interactive mobile network map
- 2M+ tests a year
- Multi-operator 4G and 5G
The network behind the map
Antenna data available for SKT · South Korea
Antenna sites
246,222
- 3G
- 97,958
- 4G
- 196,143
- 5G
- 78,723
Frequency bands
How many SKT sites use each band.
3G
| Band | Sites |
|---|---|
| 2100 MHz | 97,958 |
SKT runs its 3G network on 2100 MHz.
4G
| Band | Sites |
|---|---|
| 800 MHz | 196,143 |
SKT runs its 4G network on 800 MHz.
5G
| Band | Sites |
|---|---|
| 3500 MHz | 78,723 |
SKT runs its 5G network on 3500 MHz.
Shared network agreements
Reciprocal roaming
Customers of SKT and KT can each use the other network where their own has no coverage.
Area: 432 rural/coastal/farm villages (52 counties)
Reciprocal roaming
Customers of SKT and LG U+ can each use the other network where their own has no coverage.
Area: 432 rural/coastal/farm villages (52 counties)
SKT compared with KT, LG U+
Discover our comparison of mobile networks in South Korea. Compare the SKT coverage map with KT, LG U+ at the same address to see who delivers the strongest signal where you are.
Frequently asked questions about SKT coverage
Does SKT have good coverage in South Korea?
Coverage changes from one street to the next, so the answer depends on where you are. Search your own address on the map above to see the SKT signal there.
Does SKT offer 5G in South Korea?
Yes. SKT runs 5G from 78,723 of its sites. Switch the map to 5G to see the covered areas.
Is the SKT map up to date?
The map is built from antenna data dated October 2026, and the SKT network facts were last verified on August 14, 2026. Sogudo does not resell SKT data. Coverage accounts for each antenna's sectors, the terrain between you and the antenna, and the density of the built environment around it.
Is Sogudo affiliated with SKT?
No. Sogudo is independent and computes coverage from public antenna data.