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AS9644

AS9644 is SK Telecom.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (4 Nov 2026)

Short answer

AS9644 belongs to SK Telecom. DB-IP Lite attributes 7,122,432 IPv4 addresses in 55 ranges and 2 IPv6 ranges to it, all or nearly all of the IPv4 space in South Korea. The number is registered with APNIC in South Korea on 18 Aug 1999.

Facts for AS9644
Operator (DB-IP)SK Telecom
IPv4 addresses7,122,432
IPv4 ranges55
IPv6 ranges2
RegistryAPNIC
Registered18 Aug 1999
Registry countrySouth Korea (KR)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

SK Telecom hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 2 IPv6 ranges for AS9644, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

KR100%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
27.160.0.0 – 27.183.255.25527.160.0.0/12, 27.176.0.0/131,572,864
42.16.0.0 – 42.47.255.25542.16.0.0/12, 42.32.0.0/122,097,152
58.102.0.0 – 58.102.95.25558.102.0.0/18, 58.102.64.0/1924,576
58.102.104.0 – 58.102.127.25558.102.104.0/21, 58.102.112.0/206,144
58.102.130.0 – 58.102.134.25558.102.130.0/23, 58.102.132.0/23 …1,280
58.102.136.0 – 58.102.198.25558.102.136.0/21, 58.102.144.0/20 …16,128
58.102.202.0 – 58.102.225.25558.102.202.0/23, 58.102.204.0/22 …6,144
58.102.227.0 – 58.103.1.25558.102.227.0/24, 58.102.228.0/22 …7,936
58.103.12.0 – 58.103.16.25558.103.12.0/22, 58.103.16.0/241,280
58.103.18.0 – 58.103.136.25558.103.18.0/23, 58.103.20.0/22 …30,464
58.103.138.0 – 58.103.142.25558.103.138.0/23, 58.103.140.0/23 …1,280
58.103.144.0 – 58.103.159.25558.103.144.0/204,096
58.103.170.0 – 58.103.255.25558.103.170.0/23, 58.103.172.0/22 …22,016
61.104.0.0 – 61.104.41.25561.104.0.0/19, 61.104.32.0/21 …10,752
61.104.44.0 – 61.104.44.25561.104.44.0/24256
61.104.46.0 – 61.104.54.25561.104.46.0/23, 61.104.48.0/22 …2,304
61.104.56.0 – 61.104.75.25561.104.56.0/21, 61.104.64.0/21 …5,120
61.104.77.0 – 61.104.127.25561.104.77.0/24, 61.104.78.0/23 …13,056
61.104.134.0 – 61.104.255.25561.104.134.0/23, 61.104.136.0/21 …31,232
61.250.0.0 – 61.250.63.25561.250.0.0/1816,384
61.254.128.0 – 61.254.147.25561.254.128.0/20, 61.254.144.0/225,120
61.254.149.0 – 61.254.159.25561.254.149.0/24, 61.254.150.0/23 …2,816
111.218.0.0 – 111.219.255.255111.218.0.0/15131,072
113.216.0.0 – 113.217.255.255113.216.0.0/15131,072
114.52.0.0 – 114.52.12.255114.52.0.0/21, 114.52.8.0/22 …3,328
114.52.15.0 – 114.52.30.255114.52.15.0/24, 114.52.16.0/21 …4,096
114.52.32.0 – 114.52.73.255114.52.32.0/19, 114.52.64.0/21 …10,752
114.52.75.0 – 114.52.77.255114.52.75.0/24, 114.52.76.0/23768
114.52.79.0 – 114.52.80.255114.52.79.0/24, 114.52.80.0/24512
114.52.82.0 – 114.52.111.255114.52.82.0/23, 114.52.84.0/22 …7,680
114.52.113.0 – 114.52.238.255114.52.113.0/24, 114.52.114.0/23 …32,256
114.52.242.0 – 114.52.242.255114.52.242.0/24256
114.52.244.0 – 114.53.14.255114.52.244.0/22, 114.52.248.0/21 …6,912
114.53.16.0 – 114.53.73.255114.53.16.0/20, 114.53.32.0/19 …14,848
114.53.75.0 – 114.53.75.255114.53.75.0/24256
114.53.77.0 – 114.53.124.255114.53.77.0/24, 114.53.78.0/23 …12,288
114.53.126.0 – 114.53.254.255114.53.126.0/23, 114.53.128.0/18 …33,024
123.228.0.0 – 123.229.255.255123.228.0.0/15131,072
124.0.0.0 – 124.1.36.255124.0.0.0/16, 124.1.0.0/19 …75,008
124.1.38.0 – 124.1.255.255124.1.38.0/23, 124.1.40.0/21 …55,808
180.132.0.0 – 180.135.255.255180.132.0.0/14262,144
203.226.192.0 – 203.226.251.255203.226.192.0/19, 203.226.224.0/20 …15,360
203.236.0.0 – 203.236.43.255203.236.0.0/19, 203.236.32.0/21 …11,264
211.110.247.0 – 211.110.247.255211.110.247.0/24256
211.111.176.0 – 211.111.191.255211.111.176.0/204,096
211.115.0.0 – 211.115.9.255211.115.0.0/21, 211.115.8.0/232,560
211.115.12.0 – 211.115.12.255211.115.12.0/24256
211.115.14.0 – 211.115.31.255211.115.14.0/23, 211.115.16.0/204,608
211.188.128.0 – 211.188.255.255211.188.128.0/1732,768
211.234.128.0 – 211.234.238.255211.234.128.0/18, 211.234.192.0/19 …28,416
2001:2d8:: – 2001:2d8:ffff:ffff:ffff:ffff:ffff:ffff2001:2d8::/32IPv6
2001:f28:: – 2001:f28:ffff:ffff:ffff:ffff:ffff:ffff2001:f28::/32IPv6
Showing 50 of 55 IPv4 and 2 of 2 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 5 Nov 2026