AS24255 Koshinomiyako Network, Inc.

T-CATV - Koshinomiyako Network, Inc. · registered in Japan

IPv4 addresses27,6487 prefixes · <0.001% of announced IPv4

Rank in Japan#216largest network in JP by IPv4 space, of 724 · 0.02% of JP

Rank worldwide#5,196of 79,396 networks with IPv4

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

CountryJapan745 ASNs registered there

Open AS24255 in ASN lookup Look up an IP in this network (61.245.112.1) All networks in Japan

IPv4 prefixes

All 7 prefixes, in address order.

61.245.112.0/21
64.33.0.0/18
103.198.212.0/22
182.50.164.0/22
202.88.192.0/21
202.127.80.0/20
219.100.184.0/22

IPv6 prefixes

All 1 prefix.

2405:5300::/32

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS10002#213 ICT - IGAUENO CABLE TELEVISION CO.,LTD28,672

AS23629#214 OCTV - Obihiro City Cable Co.,Ltd.28,160

AS18283#215 CCV - Chupicom Inc.27,648

AS9601#217 SHIBATA - Niigata Communication Service27,648

AS18274#218 UCATV - Utsunomiya Cable TV Corporation26,624

AS24249#219 JWAY - JWAY co., Ltd.26,624

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