AS4040 Korea Telecom

KORNET-PS-AS-KR-KR - Korea Telecom · registered in South Korea

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in South Korea#715largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#63,024of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS4040 in ASN lookup Look up an IP in this network (14.49.22.1) All networks in South Korea

IPv4 prefixes

All 1 prefix, in address order.

14.49.22.0/24

Other ASNs named Korea Telecom

3 other networks use the same organisation name; together with AS4040 they announce 46,408,960 IPv4 addresses.

ASNNameIPv4 addresses

AS4766KIXS-AS-KR-KR - Korea Telecom KR46,382,848

AS45400NICNET-KR - Korea Telecom KR25,856

AS3559KORNET-AS-KR-KR - Korea Telecom KRIPv6 only

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS153894#712 BADACOMMUNICATIONS-AS-AP - Bada Communications256

AS200140#713 Hanseung-Kim Hanseung Kim256

AS3976#714 ERX-NURI-ASN - I.Net Technologies Inc.256

AS7626#716 SCOURTFAMILY-AS-KR-KR - SCOURTFAMILY256

AS9276#717 CHINAE-AS-KR-KR - JT Chinae Savings Bank256

AS9458#718 POBA-AS-KR-KR - Public Officials Benefit Association256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources