AS2515 Japan Network Information Center

JPNIC - Japan Network Information Center · registered in Japan

IPv4 addresses3,0724 prefixes · <0.001% of announced IPv4

Rank in Japan#424largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#18,015of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryJapan745 ASNs registered there

Open AS2515 in ASN lookup Look up an IP in this network (103.131.194.1) All networks in Japan

IPv4 prefixes

All 4 prefixes, in address order.

103.131.194.0/23
192.41.192.0/24
202.12.30.0/24
211.120.240.0/21

IPv6 prefixes

All 1 prefix.

2001:dc2::/32

Other ASNs named Japan Network Information Center

2 other networks use the same organisation name; together with AS2515 they announce 232,448 IPv4 addresses.

ASNNameIPv4 addresses

AS2522PPP-EXP - Japan Network Information Center JP229,120

AS132610JPNIC-NET-JP - Japan Network Information Center JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS18383#421 CAHI-AS-JP - CAHI Corporation,3,584

AS4697#422 NTTV6NET - Nippon Telegraph and Telephone Corporation3,328

AS151374#423 IWK-WORKS - IX-layers, Inc.3,328

AS17934#425 JGNv6 - National Institute of Information and Communications Technology3,072

AS23616#426 HNB - Hitachi Systems, Ltd.3,072

AS59123#427 KAKAKUCOM - Kakaku.com, Inc.3,072

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