AS23808 TOSHIMA CABLE NETWORK CO.,LTD

TOSHIMA-NET - TOSHIMA CABLE NETWORK CO.,LTD · registered in Japan

IPv4 addresses14,3364 prefixes · <0.001% of announced IPv4

Rank in Japan#280largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#7,567of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS23808 in ASN lookup Look up an IP in this network (103.40.128.1) All networks in Japan

IPv4 prefixes

All 4 prefixes, in address order.

103.40.128.0/22
202.140.192.0/19
219.100.132.0/22
220.152.96.0/20

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS23620#277 DMM - DMM.com LLC15,360

AS24279#278 CAT-V - SENDAI CATV CO.,LTD.14,336

AS9604#279 FSI-AS - FUJI SOFT INCORPORATED14,336

AS131931#281 ACTV-NET - Aomori Cable TV Co., Ltd.13,824

AS63997#282 TSUKAERUNET - Tsukaeru.net, Web Hosting Company, Japan13,568

AS7677#283 DNP - Dai Nippon Printing Co., Ltd13,568

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