HTTPfy

AS3258 XTOM-JAPAN xTom Japan Corporation

XTOM-JAPAN xTom Japan Corporation · registered in Japan

IPv4 addresses36,35284 prefixes · 0.001% of announced IPv4
Rank in Japan#196largest network in JP by IPv4 space, of 724 · 0.02% of JP
Rank worldwide#4,502of 79,396 networks with IPv4
IPv68 x /32 (524,555 x /48)27 prefixes
CountryJapan745 ASNs registered there
Open AS3258 in ASN lookup Look up an IP in this network (5.253.17.1) All networks in Japan

IPv4 prefixes

All 84 prefixes, in address order.

  • 5.253.17.0/24
  • 36.50.84.0/23
  • 43.239.249.0/24
  • 45.8.112.0/23
  • 45.8.114.0/24
  • 45.8.222.0/24
  • 45.11.44.0/24
  • 45.11.46.0/24
  • 45.12.89.0/24
  • 45.14.64.0/22
  • 45.66.129.0/24
  • 45.66.130.0/23
  • 45.66.216.0/23
  • 45.66.218.0/24
  • 45.89.232.0/24
  • 45.89.234.0/23
  • 45.92.159.0/24
  • 45.94.40.0/24
  • 45.128.208.0/22
  • 45.129.8.0/22
  • 45.134.170.0/23
  • 45.142.125.0/24
  • 45.142.126.0/23
  • 45.142.166.0/23
  • 45.143.131.0/24
  • 45.143.232.0/22
  • 45.149.156.0/22
  • 45.153.244.0/22
  • 45.159.48.0/22
  • 62.106.70.0/24
  • 62.106.75.0/24
  • 79.110.232.0/24
  • 85.113.70.0/24
  • 88.214.22.0/24
  • 91.199.209.0/24
  • 91.200.240.0/24
  • 91.200.242.0/23
  • 92.60.43.0/24
  • 94.124.117.0/24
  • 94.124.118.0/24
  • 95.214.166.0/23
  • 103.19.1.0/24
  • 103.47.186.0/24
  • 103.53.80.0/23
  • 103.121.208.0/22
  • 103.125.234.0/23
  • 103.150.8.0/24
  • 103.155.232.0/23
  • 103.193.129.0/24
  • 103.193.130.0/24
  • 103.201.128.0/24
  • 103.201.130.0/23
  • 109.107.137.0/24
  • 109.107.140.0/24
  • 109.121.61.0/24
  • 109.121.62.0/24
  • 141.98.196.0/23
  • 141.98.198.0/24
  • 146.19.19.0/24
  • 146.19.163.0/24
  • 147.78.242.0/23
  • 147.78.244.0/22
  • 149.62.44.0/24
  • 167.253.156.0/24
  • 172.93.220.0/23
  • 176.119.149.0/24
  • 176.119.151.0/24
  • 176.126.114.0/24
  • 185.120.183.0/24
  • 185.184.223.0/24
  • 185.200.64.0/22
  • 185.213.150.0/23
  • 185.222.43.0/24
  • 185.254.72.0/24
  • 192.109.233.0/24
  • 193.3.174.0/24
  • 193.17.91.0/24
  • 193.32.148.0/22
  • 193.111.30.0/23
  • 194.50.154.0/24
  • 195.245.241.0/24
  • 195.245.242.0/24
  • 201.4.36.0/22
  • 201.4.40.0/22

IPv6 prefixes

All 27 prefixes.

  • 2403:71c0::/48
  • 2403:71c0:1000::/48
  • 2403:71c0:2000::/48
  • 2403:71c0:3000::/48
  • 2403:71c0:8000::/48
  • 2403:fbc0::/48
  • 2403:fbc0:2000::/48
  • 2403:fbc0:4000::/48
  • 2a09:7::/47
  • 2a0d:c7c1::/32
  • 2a12:a300::/31
  • 2a12:a302::/32
  • 2a12:a303:100::/46
  • 2a12:a303:104::/46
  • 2a12:a303:108::/45
  • 2a12:a303:110::/45
  • 2a12:a303:118::/47
  • 2a12:a303:11a::/48
  • 2a12:a303:11b::/48
  • 2a12:a303:11c::/47
  • 2a12:a303:11e::/48
  • 2a12:a303:11f::/48
  • 2a12:a303:120::/43
  • 2a12:a303:140::/42
  • 2a12:a303:180::/41
  • 2a12:a304::/30
  • 2a14:640:1::/48

Similar-sized networks in Japan

ASNNameIPv4 addresses
AS17530#193 NNS - Nihon Network Service Co, .Ltd.38,912
AS18135#194 BTV - BTV CO.,LTD.38,912
AS10001#195 MICSNET - Mics Network Corporation36,864
AS7682#197 HOTNET - HOKKAIDO TELECOMMUNICATIONS NETWORK Co., Inc.35,840
AS17955#198 AVISNET - Densan Co., Ltd.35,328
AS38462#199 OCE-AS-AP - Osaki Computer Engineering Co.Ltd35,328

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