IPv4 addresses11,77631 prefixes · <0.001% of announced IPv4
Rank in Japan#295largest network in JP by IPv4 space, of 724 · <0.01% of JP
Rank worldwide#8,344of 79,396 networks with IPv4
IPv610 x /32 (659,462 x /48)41 prefixes
CountryJapan745 ASNs registered there
IPv4 prefixes
All 31 prefixes, in address order.
- 45.8.115.0/24
- 45.8.220.0/23
- 45.8.223.0/24
- 45.13.199.0/24
- 45.14.71.0/24
- 45.14.104.0/24
- 45.14.106.0/24
- 45.80.189.0/24
- 45.80.191.0/24
- 45.87.94.0/24
- 45.116.13.0/24
- 45.116.14.0/24
- 45.117.101.0/24
- 45.117.102.0/23
- 45.142.165.0/24
- 45.251.240.0/23
- 103.19.0.0/24
- 103.19.2.0/23
- 103.88.44.0/22
- 103.201.129.0/24
- 104.245.9.0/24
- 167.88.182.0/23
- 167.88.184.0/24
- 185.248.84.0/24
- 192.109.232.0/24
- 194.104.144.0/24
- 195.245.229.0/24
- 201.4.32.0/22
- 202.5.220.0/23
- 202.5.222.0/24
- 203.96.236.0/22
IPv6 prefixes
All 41 prefixes.
- 2400:ddc0::/36
- 2400:ddc0:1000::/48
- 2400:ddc0:1001::/48
- 2400:ddc0:1002::/47
- 2400:ddc0:1004::/46
- 2400:ddc0:1008::/45
- 2400:ddc0:1010::/44
- 2400:ddc0:1020::/43
- 2400:ddc0:1040::/42
- 2400:ddc0:1080::/41
- 2400:ddc0:1100::/40
- 2400:ddc0:1200::/39
- 2400:ddc0:1400::/38
- 2400:ddc0:1800::/37
- 2400:ddc0:2000::/35
- 2400:ddc0:4000::/34
- 2400:ddc0:8000::/33
- 2401:e9e0:3000::/36
- 2403:ac80::/41
- 2403:ac80:80::/45
- 2403:ac80:88::/48
- 2403:ac80:89::/48
- 2403:ac80:8a::/47
- 2403:ac80:8c::/46
- 2403:ac80:90::/44
- 2403:ac80:a0::/43
- 2403:ac80:c0::/42
- 2403:ac80:100::/40
- 2403:ac80:200::/39
- 2403:ac80:400::/38
- 2403:ac80:800::/37
- 2403:ac80:1000::/36
- 2403:ac80:2000::/35
- 2403:ac80:4000::/34
- 2403:ac80:8000::/33
- 2a06:5040:5::/48
- 2a06:5040:10::/46
- 2a06:5040:14::/48
- 2a10:480::/31
- 2a10:482::/31
- 2a10:484::/30
Other ASNs named xTom
3 other networks use the same organisation name; together with AS4785 they announce 34,048 IPv4 addresses.
Similar-sized networks in Japan
ASNNameIPv4 addresses
AS18075#292 HICAT - Chupicom Inc.12,288
AS18142#293 BIWALOBE - KISTEM Co., Ltd.12,288
AS23630#294 CAC-NET - CAC Inc.12,288
AS17661#296 NHN-JAPAN - NHN Cloud Japan Corporation11,520
AS7529#297 NETIRD - GMO NetIRD, Inc.10,752
AS18097#298 DCN - D.C.N. Corporation10,496
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