AS4766 Korea Telecom

KIXS-AS-KR-KR - Korea Telecom · registered in South Korea

IPv4 addresses46,382,8486,435 prefixes · 1.480% of announced IPv4

Rank in South Korea#1largest network in KR by IPv4 space, of 853 · 43.19% of KR

Rank worldwide#7of 79,396 networks with IPv4

IPv658 x /32 (3,801,204 x /48)147 prefixes

CountrySouth Korea869 ASNs registered there

Open AS4766 in ASN lookup Look up an IP in this network (1.96.0.1) All networks in South Korea

IPv4 prefixes

First 500 of 6,435 prefixes, in address order.

1.96.0.0/12
1.231.13.0/24
1.231.122.0/24
1.231.136.0/24
1.231.182.0/23
1.231.184.0/23
1.231.194.0/23
1.231.196.0/23
1.231.198.0/24
9.233.32.0/20
13.143.88.0/21
13.143.96.0/22
14.32.0.0/20
14.32.16.0/22
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14.32.128.0/17
14.33.0.0/17
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14.33.192.0/21
14.33.200.0/23
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14.40.0.0/16
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14.64.0.0/11
14.128.128.0/19
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16.216.128.0/23
23.26.110.0/24
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27.96.136.0/21
27.232.0.0/13
27.255.64.0/24
31.56.172.0/23
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31.77.176.0/23
39.4.0.0/14
39.16.0.0/12
43.228.160.0/23
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43.246.152.0/22
45.64.172.0/22
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49.16.0.0/12
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49.143.192.0/20
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50.2.96.0/23
51.194.152.0/24
51.241.138.0/23
51.241.199.0/24
58.29.196.0/24
59.0.0.0/18
59.0.64.0/19
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59.13.64.0/18
59.13.129.0/24

IPv6 prefixes

All 147 prefixes.

2400:0:611::/48
2400:0:810::/44
2400:0:820::/43
2400:0:840::/42
2400:12::/48
2400:32::/48
2400:e1::/32
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2400:161::/32
2400:162::/31
2400:164::/31
2400:221:3002::/48

Other ASNs named Korea Telecom

3 other networks use the same organisation name; together with AS4766 they announce 46,408,960 IPv4 addresses.

ASNNameIPv4 addresses

AS45400NICNET-KR - Korea Telecom KR25,856

AS4040KORNET-PS-AS-KR-KR - Korea Telecom KR256

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

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS9318#2 SKB-AS-KR - SK Broadband Co Ltd14,994,944

AS17858#3 POWERVIS-AS-KR-KR - LG POWERCOMM10,307,072

AS3786#4 LGDACOM-KR - LG DACOM Corporation8,056,832

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