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

AS2516 · KDDI

KDDI CORPORATION

AS2516 is owned by KDDI CORPORATION and is a major transit provider, based in Japan since 2014. The system announces a whopping 18.1 million IPv4 addresses (0.49% of routable IPv4 space), including a /10, and supports IPv6. Most of its address space is geolocated to Japan, with additional presence in the United States and Hong Kong SAR China, and a smaller footprint in another country.

  • 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.)
Registered
September 11, 2014
Last Changed
May 10, 2026
Last Seen
June 22, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
562 / 218
IPv6 Prefixes (raw / aggregated)
9 / 7
IPv4 Addresses
18 074 112
Largest IPv4 Prefix
/10 (4 194 304 addresses)
Largest IPv6 Prefix
/23
Geolocated Countries
🇯🇵 Japan (29 888 256 IPs), 🇺🇸 United States (7 424 IPs), 🇭🇰 Hong Kong SAR China (1 280 IPs) and 1 more
Prefix Changed
May 30, 2026

Reputation

Reputation
Good — 12 flagged IPs out of 18 074 112 total (0.00%)

Connectivity Summary

Upstream Providers
7 upstreams providing transit
Peers
136 networks exchanging traffic without transit
Downstream Customers
158 downstreams buying transit
Degree
301 unique BGP neighbors
Reach
11 364 networks in customer cone

Upstream Providers (7)

  • AS174 — COGENT (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 (562 total)

  • 106.128.0.0/10 (4 194 304 addresses (/10 prefix))
  • 111.96.0.0/12 (1 048 576 addresses (/12 prefix))
  • 27.80.0.0/12 (1 048 576 addresses (/12 prefix))
  • 175.128.0.0/13 (524 288 addresses (/13 prefix))
  • 113.144.0.0/13 (524 288 addresses (/13 prefix))
  • 125.48.0.0/13 (524 288 addresses (/13 prefix))
  • 124.208.0.0/13 (524 288 addresses (/13 prefix))
  • 121.104.0.0/13 (524 288 addresses (/13 prefix))
  • 59.136.0.0/13 (524 288 addresses (/13 prefix))
  • 36.8.0.0/13 (524 288 addresses (/13 prefix))
  • 118.152.0.0/13 (524 288 addresses (/13 prefix))
  • 222.0.0.0/13 (524 288 addresses (/13 prefix))
  • 59.132.0.0/14 (262 144 addresses (/14 prefix))
  • 119.104.0.0/14 (262 144 addresses (/14 prefix))
  • 113.156.0.0/14 (262 144 addresses (/14 prefix))
  • 182.248.0.0/14 (262 144 addresses (/14 prefix))
  • 111.236.0.0/14 (262 144 addresses (/14 prefix))
  • 114.16.0.0/14 (262 144 addresses (/14 prefix))
  • 14.8.0.0/14 (262 144 addresses (/14 prefix))
  • 49.132.0.0/14 (262 144 addresses (/14 prefix))
  • 222.12.0.0/14 (262 144 addresses (/14 prefix))
  • 111.86.0.0/15 (131 072 addresses (/15 prefix))
  • 175.108.0.0/15 (131 072 addresses (/15 prefix))
  • 222.226.0.0/15 (131 072 addresses (/15 prefix))
  • 113.152.0.0/15 (131 072 addresses (/15 prefix))
  • 14.12.0.0/15 (131 072 addresses (/15 prefix))
  • 106.72.0.0/15 (131 072 addresses (/15 prefix))
  • 222.10.0.0/15 (131 072 addresses (/15 prefix))
  • 59.128.0.0/15 (131 072 addresses (/15 prefix))
  • 211.4.0.0/15 (131 072 addresses (/15 prefix))
  • 125.28.0.0/15 (131 072 addresses (/15 prefix))
  • 114.20.0.0/15 (131 072 addresses (/15 prefix))
  • 220.214.0.0/16 (65 536 addresses (/16 prefix))
  • 211.134.0.0/16 (65 536 addresses (/16 prefix))
  • 211.126.0.0/16 (65 536 addresses (/16 prefix))
  • 211.18.0.0/16 (65 536 addresses (/16 prefix))
  • 210.230.0.0/16 (65 536 addresses (/16 prefix))
  • 210.234.0.0/16 (65 536 addresses (/16 prefix))
  • 133.253.0.0/16 (65 536 addresses (/16 prefix))
  • 133.192.0.0/16 (65 536 addresses (/16 prefix))
  • 61.204.0.0/16 (65 536 addresses (/16 prefix))
  • 210.196.0.0/16 (65 536 addresses (/16 prefix))
  • 150.47.0.0/16 (65 536 addresses (/16 prefix))
  • 150.71.0.0/16 (65 536 addresses (/16 prefix))
  • 163.48.0.0/16 (65 536 addresses (/16 prefix))
  • 61.117.0.0/16 (65 536 addresses (/16 prefix))
  • 163.210.0.0/16 (65 536 addresses (/16 prefix))
  • 218.222.0.0/16 (65 536 addresses (/16 prefix))
  • 59.131.0.0/16 (65 536 addresses (/16 prefix))
  • 219.108.0.0/16 (65 536 addresses (/16 prefix))

IPv6 Prefixes (9 total)

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