AS63800 SERVER-G Group

SERVER-G - SERVER-G Group · registered in Japan

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Japan#650largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#60,691of 79,396 networks with IPv4

IPv610 x /489 prefixes

CountryJapan745 ASNs registered there

Open AS63800 in ASN lookup Look up an IP in this network (103.131.151.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

103.131.151.0/24

IPv6 prefixes

All 9 prefixes.

2401:d20:1::/48
2401:d20:f::/48
2401:d20:10::/48
2401:d20:16::/48
2401:d20:19::/48
2401:d20:1c::/47
2401:d20:1e::/48
2401:d20:66::/48
2401:d20:99::/48

Other ASNs named SERVER-G Group

2 other networks use the same organisation name; together with AS63800 they announce 768 IPv4 addresses.

ASNNameIPv4 addresses

AS58790TeamFelNull - SERVER-G Group JP256

AS150368TESTBED-KLN - SERVER-G Group JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS4690#647 WIDE-SFO - WIDE Project256

AS131951#648 SSC - Suzuyo Shinwart Corporation256

AS146986#649 SSC-3 - SUZUYO SHINWART CORPORATION256

AS58790#651 TeamFelNull - SERVER-G Group256

AS214968#652 KNEE-NET-AS JIANG Zhirui256

AS150368#653 TESTBED-KLN - SERVER-G Group256

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