KT coverage map
Check the KT coverage map anywhere in South Korea. Sogudo shows estimated KT 4G and 5G network coverage at street level - computed from public antenna data, so you can see what KT actually delivers at your address before you commit.
How good is KT coverage?
KT has one of the largest networks in South Korea, with solid 4G reach beyond the cities and growing 5G in larger towns. But KT coverage changes from street to street - use the map above to check the expected signal exactly where you need it.
KT 5G coverage
Switch the map to 5G to see KT 5G coverage areas. Where 5G is unavailable, the phone falls back to KT 4G. The KT 5G map is modeled from antenna data and updated monthly.
Check KT coverage at your address
Enter an address or postcode and Sogudo shows the expected KT coverage and network type at that exact point. Move the marker to compare neighbouring streets - useful for a new flat, office or trip.
The network behind the map
What KT actually runs in South Korea, counted from the same antenna data the map is built on.
191,890
Antenna sites
No. 2 of 3 by site count
- 3G
- 54,329
- 4G
- 152,682
- 5G
- 66,892
3G
KT still operates its 3G network.
Shared networks
Where KT carries traffic on another operator's radio network, and on what terms.
a reciprocal national roaming agreement with SKT
432 rural/coastal/farm villages (52 counties)
Sources: etnews.com · hankyung.com
a reciprocal national roaming agreement with LG U+
432 rural/coastal/farm villages (52 counties)
Sources: etnews.com · zdnet.co.kr
Frequency bands
How many KT sites use each band.
3G
| Band | Sites |
|---|---|
| 2100 MHz | 54,329 |
KT runs its 3G network on 2100 MHz.
4G
| Band | Sites |
|---|---|
| 800 MHz | 152,682 |
KT runs its 4G network on 800 MHz.
5G
| Band | Sites |
|---|---|
| 3500 MHz | 66,892 |
KT runs its 5G network on 3500 MHz.
KT compared with SKT, LG U+
The best network depends on location. Compare the KT coverage map with SKT, LG U+ at the same address to see who delivers the strongest signal where you are.
Frequently asked questions about KT coverage
Does KT have good coverage in South Korea?
KT ranks No. 2 of 3 in South Korea by site count. That is the national picture: coverage still changes street by street, so search your own address on the map above.
Does KT offer 5G in South Korea?
Yes. KT runs 5G from 66,892 of its sites. Switch the map to 5G to see the covered areas.
Is the KT map up to date?
The map is built from antenna data dated August 2026, and the KT network facts were last verified on August 14, 2026. Sogudo does not resell KT data.
Is Sogudo affiliated with KT?
No. Sogudo is independent and computes coverage from public antenna data.