$ query “AS2518” --type=asn → 1 result(s)

AS2518 — BIGLOBE

BIGLOBE Inc.

AS2518 is a mid-size transit provider run by BIGLOBE Inc., registered in Japan. The network announces an impressive 3.7 million IPv4 addresses, including a /13. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇯🇵 Japan
Category
Internet Service Provider
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
34 / 29
IPv6 Prefixes (raw / aggregated)
2 / 2
IPv4 Addresses
3 670 016
Largest IPv4 Prefix
/13 (524 288 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇯🇵 JP (43 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Good — 7 flagged IPs out of 3 670 016 total (0.00%)

Connectivity Summary

Upstream Providers
4 upstream autonomous systems providing transit
Peers
180 autonomous systems exchanging traffic without transit fees
Downstream Customers
36 downstream autonomous systems buying transit
Degree
221 unique BGP neighbors (providers + customers + peers)
Reach
196 — customer cone size measuring network influence
Degree Rank
#587
Reach Rank
#834

Upstream Providers (4)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS2516 — KDDI

Prefix Lists

IPv4 Prefixes (34 total)

  • 125.192.0.0/13 (524 288 addresses)
  • 133.200.0.0/13 (524 288 addresses)
  • 60.236.0.0/14 (262 144 addresses)
  • 118.108.0.0/14 (262 144 addresses)
  • 119.240.0.0/14 (262 144 addresses)
  • 122.132.0.0/14 (262 144 addresses)
  • 111.168.0.0/15 (131 072 addresses)
  • 119.238.0.0/15 (131 072 addresses)
  • 122.130.0.0/15 (131 072 addresses)
  • 133.208.0.0/15 (131 072 addresses)
  • 221.170.0.0/15 (131 072 addresses)
  • 49.129.0.0/16 (65 536 addresses)
  • 110.233.0.0/16 (65 536 addresses)
  • 119.244.0.0/16 (65 536 addresses)
  • 202.225.0.0/16 (65 536 addresses)
  • 203.136.0.0/16 (65 536 addresses)
  • 210.147.0.0/16 (65 536 addresses)
  • 218.227.0.0/16 (65 536 addresses)
  • 219.107.0.0/16 (65 536 addresses)
  • 220.102.0.0/16 (65 536 addresses)
  • 220.144.0.0/16 (65 536 addresses)
  • 27.127.0.0/17 (32 768 addresses)
  • 61.193.0.0/17 (32 768 addresses)
  • 61.203.0.0/17 (32 768 addresses)
  • 202.247.0.0/17 (32 768 addresses)
  • 210.151.128.0/17 (32 768 addresses)
  • 211.13.0.0/17 (32 768 addresses)
  • 211.135.128.0/17 (32 768 addresses)
  • 218.42.0.0/17 (32 768 addresses)

IPv6 Prefixes (2 total)

  • 2404:7a80::/29
  • 2001:260::/32