$ query “AS2516” --type=asn → 1 result(s)

AS2516 — KDDI

KDDI CORPORATION

AS2516 is a major transit provider registered to KDDI CORPORATION, established in Japan. The network announces a whopping 18.0 million IPv4 addresses (0.49% of routable IPv4 space), including a /10. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #3 in Japan — Top 10 by reach within country

Basic Information

Country
🇯🇵 Japan
Category
Internet Service Provider
Network Role
Major 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)
548 / 211
IPv6 Prefixes (raw / aggregated)
9 / 7
IPv4 Addresses
18 043 648
Largest IPv4 Prefix
/10 (4 194 304 addresses)
Largest IPv6 Prefix
/23
Geolocated Countries
🇯🇵 JP (230 IPs), 🇺🇸 US (27 IPs), 🇭🇰 HK (2 IPs), 🇦🇺 AU
Prefix Changed
March 04, 2026

Reputation

Reputation
Good — 13 flagged IPs out of 18 043 648 total (0.00%)

Connectivity Summary

Upstream Providers
7 upstream autonomous systems providing transit
Peers
132 autonomous systems exchanging traffic without transit fees
Downstream Customers
163 downstream autonomous systems buying transit
Degree
302 unique BGP neighbors (providers + customers + peers)
Reach
12 145 — customer cone size measuring network influence
Degree Rank
#434
Reach Rank
#440
Country Rank
#3

Upstream Providers (7)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS701 — UUNET (Tier-1 transit)
  • AS32787 — PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK

Prefix Lists

IPv4 Prefixes (548 total)

  • 106.128.0.0/10 (4 194 304 addresses)
  • 27.80.0.0/12 (1 048 576 addresses)
  • 111.96.0.0/12 (1 048 576 addresses)
  • 36.8.0.0/13 (524 288 addresses)
  • 59.136.0.0/13 (524 288 addresses)
  • 113.144.0.0/13 (524 288 addresses)
  • 118.152.0.0/13 (524 288 addresses)
  • 121.104.0.0/13 (524 288 addresses)
  • 124.208.0.0/13 (524 288 addresses)
  • 125.48.0.0/13 (524 288 addresses)
  • 175.128.0.0/13 (524 288 addresses)
  • 222.0.0.0/13 (524 288 addresses)
  • 14.8.0.0/14 (262 144 addresses)
  • 49.132.0.0/14 (262 144 addresses)
  • 59.132.0.0/14 (262 144 addresses)
  • 111.236.0.0/14 (262 144 addresses)
  • 113.156.0.0/14 (262 144 addresses)
  • 114.16.0.0/14 (262 144 addresses)
  • 119.104.0.0/14 (262 144 addresses)
  • 182.248.0.0/14 (262 144 addresses)
  • 222.12.0.0/14 (262 144 addresses)
  • 14.12.0.0/15 (131 072 addresses)
  • 59.128.0.0/15 (131 072 addresses)
  • 106.72.0.0/15 (131 072 addresses)
  • 111.86.0.0/15 (131 072 addresses)
  • 113.152.0.0/15 (131 072 addresses)
  • 114.20.0.0/15 (131 072 addresses)
  • 125.28.0.0/15 (131 072 addresses)
  • 175.108.0.0/15 (131 072 addresses)
  • 211.4.0.0/15 (131 072 addresses)
  • 222.10.0.0/15 (131 072 addresses)
  • 222.226.0.0/15 (131 072 addresses)
  • 14.101.0.0/16 (65 536 addresses)
  • 59.131.0.0/16 (65 536 addresses)
  • 61.117.0.0/16 (65 536 addresses)
  • 61.204.0.0/16 (65 536 addresses)
  • 113.154.0.0/16 (65 536 addresses)
  • 114.22.0.0/16 (65 536 addresses)
  • 133.192.0.0/16 (65 536 addresses)
  • 133.253.0.0/16 (65 536 addresses)
  • 150.47.0.0/16 (65 536 addresses)
  • 150.71.0.0/16 (65 536 addresses)
  • 163.48.0.0/16 (65 536 addresses)
  • 163.210.0.0/16 (65 536 addresses)
  • 210.196.0.0/16 (65 536 addresses)
  • 210.230.0.0/16 (65 536 addresses)
  • 210.234.0.0/16 (65 536 addresses)
  • 211.18.0.0/16 (65 536 addresses)
  • 211.126.0.0/16 (65 536 addresses)
  • 211.134.0.0/16 (65 536 addresses)

IPv6 Prefixes (9 total)

  • 240f::/23
  • 240b::/26
  • 240b:240::/26
  • 2001:268::/32
  • 2401:980::/32
  • 2404:9200::/32
  • 2403:8300:813f::/48