AS9991 Hiroshima Shudo University

SHUDO-U - Hiroshima Shudo University · registered in Japan

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in Japan#117largest network in JP by IPv4 space, of 724 · 0.04% of JP

Rank worldwide#2,975of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS9991 in ASN lookup Look up an IP in this network (150.32.0.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

150.32.0.0/16

IPv6 prefixes

All 1 prefix.

2001:df2:b340::/48

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS9367#114 ISCT - Institute of Science Tokyo65,536

AS131161#115 NECCN - NEC Corporation65,536

AS2500#116 WIDE-BB - WIDE Project65,536

AS10014#118 NIHON-U - Nihon University65,536

AS17523#119 AOYAMA - Aoyama Gakuin University65,536

AS17701#120 SEINAN - Seinan Gakuin University65,536

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