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AS2516KDDI Corporation

JapanRegistryAPNICTypeCarrier

As of 10th November 2026, AS2516 (KDDI Corporation), a transit carrier registered in Japan with APNIC, originates 570 IPv4 prefixes covering 18.2M addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 37th-largest of the 80,723 networks we see originating IPv4, and the 3rd-largest of 737 in Japan. It is seen behind 34 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3356 (Lumen (Level 3)), and in front of 151 downstream networks. 80% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 98% 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

570

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…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS398465Rackdog LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS20130Depaul UniversityAS132337Axclusive

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

479

adjacent networks

Upstreams
347%
Peers
29461%
Downstreams
15132%

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

Upstreams of AS2516
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer23,18546
AS3356Lumen (Level 3)USPeer21,09429
AS6939Hurricane Electric LLCUSPeer19,84062
AS3257GTT Communications Inc.USPeer12,68659
AS6762Telecom Italia Sparkle (Seabone)ITPeer8,45521
AS174Cogent Communications, LLCUSPeer7,99924
AS2914NTT America, Inc.USPeer5,45319
AS2152CENIC - CalRENUSPeer4,6071
AS13030Init7 (Switzerland) Ltd.CHPeer4,4642
AS49544i3D.net B.VNLPeer4,2874

Prefixes

All 580

The largest blocks AS2516 originates, widest first.

Largest prefixes originated by AS2516
PrefixAddressesVisibility
106.128.0.0/112.1M75/76
36.8.0.0/13524k75/76
49.132.0.0/14262k76/76
111.236.0.0/14262k76/76
14.8.0.0/15131k76/76
14.10.0.0/15131k76/76
14.12.0.0/15131k76/76
106.72.0.0/15131k76/76
106.190.0.0/15131k76/76
114.20.0.0/15131k76/76

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

  • Valid79.8%463
  • Invalid0.2%1
  • No ROA20.0%116

Propagation

  • Globally propagated90% of full-feed peers or more97.8%567
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%2.2%13

Prefix sizes

IPv4 — 570 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 11th Oct 2026.

15 announced and 5 withdrawn in all; the most recent are shown.

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