iij.net
One organisation, resolved across 2 separately-registered clusters
linked by shared operating domain iij.net — not name similarity, so
genuinely different organisations that share a name are excluded.
Data as of 2026-11-01
2 clusters ·
519 netblocks ·
23,865,614 IPv4 addresses ·
36 IPv6 prefixes
IPv6 ranges (36)
- 2001:240::/32
- 2001:300::/32
- 2001:48b0::/32
- 2400:3980::/32
- 2401:f280::/32
- 2404:7200::/32
- 2404:9000::/32
- 240a:71:8000::/36
- 240a:71:9000::/36
- 2001:df7:5380::/47
- 2001:df0:c280::/48
- 2401:ce20:c::/48
- 2401:ce20:d::/48
- 2401:ce20:e::/48
- 2403:5700:1::/48
- 2403:5700::/48
- 2001:504:0:1::2497:1/128
- 2001:504:0:1::2497:2/128
- 2001:504:0:2::2497:1/128
- 2001:504:0:3::2497:1/128
- 2001:504:0:3::2497:2/128
- 2001:504:16::9c1/128
- 2001:504:1::a500:2497:1/128
- 2001:504:f::3f/128
- 2001:7f8:4::9c1:1/128
- 2001:7f8::9c1:0:1/128
- 2001:7fa:0:1::ca28:a088/128
- 2001:7fa:7:1::2497:2/128
- 2001:7fa:7:1::2497:3/128
- 2001:7fa:7:1::2497:4/128
- 2001:7fa:7:1::2497:5/128
- 2001:7fa:7:2::2497:1/128
- 2001:7fa:7:2::2497:2/128
- 2001:de8:12:100::163/128
- 2001:de8:4::2497:1/128
- 2001:de8:7::2497:1/128
Member clusters
- Internet Initiative Japan Inc. JP 321 netblocks
- JPNIC-NET-JP 199 netblocks