AS45400 is the autonomous system of Korea Telecom. It holds 25,856 IPv4 addresses in 83 prefixes, mainly in 
South Korea.
By IPv4 addresses the network ranks #5,341 worldwide and #147 of 870 networks in South Korea. That is 0.02% of the country’s IPv4 space.
The largest block is 210.104.8.0 to 210.104.15.255 with 2,048 addresses, geolocated to Seongnam-si (Buljeong-ro).
- IPv4 addresses
- 25,856
- IPv4 prefixes
- 83
- World rank
- #5,341
- Country share
- 0.02%
Addresses by country
- South Korea 100%
Largest blocks
- 210.104.8.0 Seongnam-si (Buljeong-ro)2,048
- 211.46.92.0 Seongnam-si (Buljeong-ro)1,024
- 210.104.26.0 Seongnam-si (Buljeong-ro)768
- 211.253.149.0 Dunsan-dong512
- 211.236.123.0 Seongnam-si (Buljeong-ro)512
- 211.185.244.0 Naju (Jinheung-gil)512
- 211.34.114.0 Seongnam-si (Buljeong-ro)512
- 210.204.226.0 Seongnam-si (Buljeong-ro)512
Networks of similar size
25,856
25,856
25,856
25,600
25,600IPv4 prefixes
- 180.92.241.0/24
- 180.92.248.0/24
- 180.92.250.0/23
- 180.92.254.0/24
- 203.242.5.0/24
- 203.254.123.0/24
- 210.90.6.0/24
- 210.90.80.0/24
- 210.90.82.0/24
- 210.90.191.0/24
- 210.90.199.0/24
- 210.90.214.0/24
- 210.95.12.0/24
- 210.95.19.0/24
- 210.96.31.0/24
- 210.96.84.0/24
- 210.96.115.0/24
- 210.96.121.0/24
- 210.97.6.0/24
- 210.97.119.0/24
- 210.99.10.0/24
- 210.99.158.0/23
- 210.99.168.0/24
- 210.100.136.0/24
- 210.100.168.0/24
- 210.100.214.0/24
- 210.103.55.0/24
- 210.103.111.0/24
- 210.103.115.0/24
- 210.104.8.0/21
- 210.104.20.0/24
- 210.104.22.0/24
- 210.104.26.0/23
- 210.104.28.0/24
- 210.104.44.0/24
- 210.104.102.0/24
- 210.104.123.0/24
- 210.104.138.0/24
- 210.104.218.0/24
- 210.104.237.0/24
- 210.117.195.0/24
- 210.117.199.0/24
- 210.119.249.0/24
- 210.119.250.0/24
- 210.178.187.0/24
- 210.179.87.0/24
- 210.179.88.0/24
- 210.179.140.0/23
- 210.179.159.0/24
- 210.179.218.0/23
- 210.204.213.0/24
- 210.204.226.0/23
- 210.211.1.0/24
- 210.211.15.0/24
- 211.34.114.0/23
- 211.34.147.0/24
- 211.34.174.0/24
- 211.43.142.0/24
- 211.46.92.0/22
- 211.46.125.0/24
- 211.57.43.0/24
- 211.114.15.0/24
- 211.114.27.0/24
- 211.114.36.0/24
- 211.114.101.0/24
- 211.114.171.0/24
- 211.184.16.0/24
- 211.185.244.0/23
- 211.236.67.0/24
- 211.236.106.0/24
- 211.236.118.0/24
- 211.236.120.0/24
- 211.236.123.0/24
- 211.236.124.0/24
- 211.252.223.0/24
- 211.252.239.0/24
- 211.253.65.0/24
- 211.253.67.0/24
- 211.253.149.0/24
- 211.253.150.0/24
- 211.253.250.0/24
- 211.255.123.0/24
- 221.145.178.0/24
Questions and answers
Who owns AS45400?
Autonomous system AS45400 is operated by Korea Telecom.
How many IP addresses does AS45400 have?
The network holds 25,856 IPv4 addresses in 83 prefixes.
Which country is AS45400 in?
The main country is South Korea.
How big is AS45400?
By IPv4 addresses it ranks #5,341 worldwide.
What is the largest address block of AS45400?
210.104.8.0 to 210.104.15.255, 2,048 addresses.