AS4777 Asia Pacific Network Information Centre

APNIC-COLO - Asia Pacific Network Information Centre · registered in Japan

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in Japan#594largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#47,411of 79,396 networks with IPv4

IPv616,384 x /482 prefixes

CountryJapan745 ASNs registered there

Open AS4777 in ASN lookup Look up an IP in this network (202.12.28.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

202.12.28.0/24
203.119.0.0/24

IPv6 prefixes

All 2 prefixes.

2001:dc0::/35
2001:dc0:c000::/35

Other ASNs named Asia Pacific Network Information Centre

5 other networks use the same organisation name; together with AS4777 they announce 5,888 IPv4 addresses.

ASNNameIPv4 addresses

AS4608APNIC-SERVICES - Asia Pacific Network Information Centre AU4,352

AS18366APNIC-ANYCAST - Asia Pacific Network Information Centre AU256

AS18367APNIC-ANYCAST - Asia Pacific Network Information Centre AU256

AS18368APNIC-ANYCAST - Asia Pacific Network Information Centre AU256

AS18369APNIC-ANYCAST - Asia Pacific Network Information Centre AU256

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS152876#591 COMOTA - Comota Co., Ltd.512

AS63790#592 CA-LAB - CyberAgent, Inc.512

AS152873#593 NEODY-NET - Neodyland512

AS59098#595 Hinaturu-Net - Mamireimu Net Work's512

AS63806#596 MENHERA - Human-life Information Platforms Institute512

AS199767#597 DOVE-AS Pinjia Zhao512

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