IPv4 addresses23,80822 prefixes · <0.001% of announced IPv4
Rank in Japan#228largest network in JP by IPv4 space, of 724 · 0.01% of JP
Rank worldwide#5,612of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountryJapan745 ASNs registered there
IPv4 prefixes
All 22 prefixes, in address order.
- 61.122.64.0/21
- 61.122.72.0/23
- 61.122.75.0/24
- 61.122.76.0/24
- 61.122.78.0/23
- 61.122.80.0/20
- 175.100.208.0/22
- 210.135.64.0/20
- 210.135.80.0/22
- 210.135.84.0/24
- 210.135.86.0/23
- 210.135.88.0/21
- 210.173.224.0/23
- 210.173.227.0/24
- 210.173.228.0/22
- 210.173.232.0/21
- 210.173.240.0/24
- 210.173.242.0/24
- 210.173.244.0/22
- 210.173.248.0/23
- 210.173.250.0/24
- 210.173.252.0/22
Similar-sized networks in Japan
ASNNameIPv4 addresses
AS55386#225 FJcloud-West - FUJITSU LIMITED24,832
AS17950#226 SaiNet-AS - SaiNet24,576
AS23788#227 HICT - JCOM Co., Ltd.24,576
AS17682#229 CABLENET296 - 296 BROAD NET Com Inc23,552
AS135161#230 GMO-Z-COM-TH - GMO-Z com NetDesign Holdings Co., Ltd.23,040
AS18121#231 INCL - Ishikawa Computer Center Co.,LTD.22,528
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