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AS2518 BIGLOBE Inc.

BIGLOBE - BIGLOBE Inc. · registered in Japan

IPv4 addresses3,670,01636 prefixes · 0.117% of announced IPv4
Rank in Japan#9largest network in JP by IPv4 space, of 724 · 2.27% of JP
Rank worldwide#130of 79,396 networks with IPv4
IPv68 x /32 (589,823 x /48)17 prefixes
CountryJapan745 ASNs registered there
Open AS2518 in ASN lookup Look up an IP in this network (27.127.0.1) All networks in Japan

IPv4 prefixes

All 36 prefixes, in address order.

  • 27.127.0.0/17
  • 49.129.0.0/16
  • 60.236.0.0/14
  • 61.193.0.0/17
  • 61.203.0.0/17
  • 110.233.0.0/16
  • 111.168.0.0/15
  • 118.108.0.0/14
  • 119.238.0.0/15
  • 119.240.0.0/14
  • 119.244.0.0/16
  • 122.130.0.0/15
  • 122.132.0.0/14
  • 125.192.0.0/13
  • 133.200.0.0/13
  • 133.208.0.0/15
  • 202.225.0.0/16
  • 202.247.0.0/18
  • 202.247.64.0/21
  • 202.247.72.0/22
  • 202.247.76.0/23
  • 202.247.78.0/24
  • 202.247.79.0/24
  • 202.247.80.0/20
  • 202.247.96.0/19
  • 203.136.0.0/16
  • 210.147.0.0/16
  • 210.151.128.0/17
  • 211.13.0.0/17
  • 211.135.128.0/17
  • 218.42.0.0/17
  • 218.227.0.0/16
  • 219.107.0.0/16
  • 220.102.0.0/16
  • 220.144.0.0/16
  • 221.170.0.0/15

IPv6 prefixes

All 17 prefixes.

  • 2001:260::/39
  • 2001:260:200::/40
  • 2001:260:300::/43
  • 2001:260:320::/48
  • 2001:260:322::/47
  • 2001:260:324::/46
  • 2001:260:328::/45
  • 2001:260:330::/44
  • 2001:260:340::/42
  • 2001:260:380::/41
  • 2001:260:400::/38
  • 2001:260:800::/37
  • 2001:260:1000::/36
  • 2001:260:2000::/35
  • 2001:260:4000::/34
  • 2001:260:8000::/33
  • 2404:7a80::/29

Other ASNs named BIGLOBE Inc.

1 other network uses the same organisation name; together with AS2518 they announce 3,670,272 IPv4 addresses.

ASNNameIPv4 addresses
AS45674MIDORI - BIGLOBE Inc. JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses
AS9824#6 JTCL-JP-AS - JCOM Co., Ltd.4,745,216
AS2497#7 IIJ - Internet Initiative Japan Inc.4,094,976
AS2527#8 So-net - Sony Network Communications Inc.3,867,648
AS17511#10 OPTAGE - OPTAGE Inc.2,994,432
AS9605#11 docomo - NTT DOCOMO, INC.2,536,448
AS2514#12 InfoSphere - NTT PC Communications, Inc.2,078,976

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