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

AS2516 · KDDI

KDDI CORPORATION

AS2516 is owned by KDDI CORPORATION and is a major transit provider, established in Japan. The system announces a whopping 18.1 million IPv4 addresses (0.49% of routable IPv4 space), including a /10, and supports IPv6. Its primary geographic footprint is in Japan, with additional presence in the United States and Hong Kong SAR China, and a smaller footprint in another country. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #7 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
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
557 / 213
IPv6 Prefixes (raw / aggregated)
9 / 7
IPv4 Addresses
18 068 224
Largest IPv4 Prefix
/10 (4 194 304 addresses)
Largest IPv6 Prefix
/23
Geolocated Countries
🇯🇵 Japan (29 876 480 IPs), 🇺🇸 United States (7 936 IPs), 🇭🇰 Hong Kong SAR China (512 IPs) and 1 more
Prefix Changed
April 23, 2026

Reputation

Reputation
Good — 11 flagged IPs out of 18 068 224 total (0.00%)

Connectivity Summary

Upstream Providers
7 upstreams providing transit
Peers
133 networks exchanging traffic without transit
Downstream Customers
162 downstreams buying transit
Unclassified
1 unclassified BGP neighbor
Degree
303 unique BGP neighbors
Reach
3 314 networks in customer cone

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 (557 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))
  • 113.144.0.0/13 (524 288 addresses (/13 prefix))
  • 175.128.0.0/13 (524 288 addresses (/13 prefix))
  • 59.136.0.0/13 (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))
  • 222.0.0.0/13 (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))
  • 222.12.0.0/14 (262 144 addresses (/14 prefix))
  • 113.156.0.0/14 (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))
  • 111.236.0.0/14 (262 144 addresses (/14 prefix))
  • 119.104.0.0/14 (262 144 addresses (/14 prefix))
  • 59.132.0.0/14 (262 144 addresses (/14 prefix))
  • 49.132.0.0/14 (262 144 addresses (/14 prefix))
  • 182.248.0.0/14 (262 144 addresses (/14 prefix))
  • 59.128.0.0/15 (131 072 addresses (/15 prefix))
  • 211.4.0.0/15 (131 072 addresses (/15 prefix))
  • 175.108.0.0/15 (131 072 addresses (/15 prefix))
  • 14.12.0.0/15 (131 072 addresses (/15 prefix))
  • 222.226.0.0/15 (131 072 addresses (/15 prefix))
  • 125.28.0.0/15 (131 072 addresses (/15 prefix))
  • 222.10.0.0/15 (131 072 addresses (/15 prefix))
  • 114.20.0.0/15 (131 072 addresses (/15 prefix))
  • 113.152.0.0/15 (131 072 addresses (/15 prefix))
  • 111.86.0.0/15 (131 072 addresses (/15 prefix))
  • 106.72.0.0/15 (131 072 addresses (/15 prefix))
  • 14.101.0.0/16 (65 536 addresses (/16 prefix))
  • 210.230.0.0/16 (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))
  • 163.210.0.0/16 (65 536 addresses (/16 prefix))
  • 211.126.0.0/16 (65 536 addresses (/16 prefix))
  • 150.47.0.0/16 (65 536 addresses (/16 prefix))
  • 211.134.0.0/16 (65 536 addresses (/16 prefix))
  • 61.117.0.0/16 (65 536 addresses (/16 prefix))
  • 210.196.0.0/16 (65 536 addresses (/16 prefix))
  • 218.222.0.0/16 (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))
  • 210.234.0.0/16 (65 536 addresses (/16 prefix))
  • 61.204.0.0/16 (65 536 addresses (/16 prefix))
  • 222.225.0.0/16 (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))
  • and 163 more

IPv6 Prefixes (9 total)

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