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AS2516KDDI Corporation

JapanRegistryAPNICTypeCarrier

As of 26th September 2026, AS2516 (KDDI Corporation), a transit carrier registered in Japan with APNIC, originates 560 IPv4 prefixes covering 18.2M addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 36th-largest of the 79,480 networks we see originating IPv4, and the 3rd-largest of 729 in Japan. It is seen behind 33 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3356 (Lumen (Level 3)), and in front of 152 downstream networks. 81% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

560

IPv6 prefixes

10

IPv4 addresses

18.2M

IPv6 /64s

2.8T

Upstream graph

The networks AS2516 is seen behind, one and two hops out, drawn from real AS paths.

AS2516Toward the internet core
Upstream graph for AS2516: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS2516KDDI CorporationThis networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS6762Telecom Italia Sp…AS6939Hurricane Electri…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS398465Rackdog LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS2516 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

476

adjacent networks

Upstreams
337%
Peers
29161%
Downstreams
15232%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS2516
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer25,16952
AS3356Lumen (Level 3)USPeer22,30145
AS6939Hurricane Electric LLCUSPeer19,67062
AS3257GTT Communications Inc.USPeer17,01166
AS6762Telecom Italia Sparkle (Seabone)ITPeer9,41923
AS174Cogent Communications, LLCUSPeer9,20133
AS2914NTT America, Inc.USPeer5,36518
AS2152CENIC - CalRENUSPeer4,6991
AS13030Init7 (Switzerland) Ltd.CHPeer4,6082
AS49544i3D.net B.VNLPeer4,4704

Prefixes

All 570

The largest blocks AS2516 originates, widest first.

Largest prefixes originated by AS2516
PrefixAddressesVisibility
106.128.0.0/112.1M80/81
36.8.0.0/13524k80/81
49.132.0.0/14262k81/81
111.236.0.0/14262k81/81
14.8.0.0/15131k81/81
14.10.0.0/15131k81/81
14.12.0.0/15131k81/81
106.72.0.0/15131k81/81
106.190.0.0/15131k81/81
114.20.0.0/15131k81/81

Routing health

How AS2516's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid81.2%463
  • Invalid0.2%1
  • No ROA18.6%106

Propagation

  • Globally propagated90% of full-feed peers or more99.3%566
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.7%4

Prefix sizes

IPv4 — 560 prefixes

IPv6 — 10 prefixes

  • /241.1T × /6420.0%2
  • /26275B × /6420.0%2
  • /324.3B × /6430.0%3
  • /4865.5k × /6420.0%2
  • /49 and longerAggregated10.0%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

  • Withdrawn111.109.60.0/2423rd Sept 2026
  • Withdrawn111.109.61.0/2423rd Sept 2026
  • Withdrawn45.122.224.0/2221st Sept 2026
  • Withdrawn45.127.28.0/2221st Sept 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.