AS7500 WIDE Project

M-ROOT-DNS - WIDE Project · registered in Japan

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in Japan#520largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#30,299of 79,396 networks with IPv4

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

CountryJapan745 ASNs registered there

Open AS7500 in ASN lookup Look up an IP in this network (192.50.45.1) All networks in Japan

IPv4 prefixes

All 3 prefixes, in address order.

192.50.45.0/24
202.12.26.0/23
202.13.183.0/24

IPv6 prefixes

All 1 prefix.

2001:dc3::/32

Other ASNs named WIDE Project

4 other networks use the same organisation name; together with AS7500 they announce 67,072 IPv4 addresses.

ASNNameIPv4 addresses

AS2500WIDE-BB - WIDE Project JP65,536

AS23634E-DNS-JP - WIDE Project JP256

AS4690WIDE-SFO - WIDE Project JP256

AS4717AI3 - WIDE Project JPIPv6 only

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS55891#517 WBTSJP-AS - WATCH TOWER BIBLE AND TRACT SOCIETY1,024

AS51044#518 RHE Kazuki Yamaguchi1,024

AS4718#519 CKP - Cyber Kansai Project1,024

AS38648#521 F-REGI - F-REGI Co.,Ltd.1,024

AS58645#522 marinet - Miyagi Cable TV Co.,Ltd1,024

AS59110#523 BPS - BPS Inc.1,024

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