AS18091 Teikyo University

TEIKYO-U - Teikyo University · registered in Japan

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in Japan#542largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#36,551of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS18091 in ASN lookup Look up an IP in this network (202.253.108.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

202.253.108.0/22

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS18149#539 JPRS - Japan Registry Service Co., Ltd.1,024

AS37904#540 BBIX-NETWORK - BBIX, Inc.1,024

AS4774#541 ABONE-AS - A-Bone by Internet Initiative Japan Inc.1,024

AS18279#543 BUKKYO-U - Bukkyo University1,024

AS18289#544 TAO_TORONTO - AT&T TAO Cloud Access Node1,024

AS23799#545 NDA - National Defense Academy1,024

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