subnet.im

AS3292TDC Holding A/S

DenmarkRegistryRIPE NCCTypeEyeball

As of 14th November 2026, AS3292 (TDC Holding A/S), an access network registered in Denmark with RIPE NCC, originates 176 IPv4 prefixes covering 5.2M addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 133rd-largest of the 80,840 networks we see originating IPv4, and the largest of 329 in Denmark. It is seen behind 37 upstream networks, most often AS6453 (TATA Communications (America) Inc) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 102 downstream networks. 68% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

176

IPv6 prefixes

4

IPv4 addresses

5.2M

IPv6 /64s

42.9B

Upstream graph

The networks AS3292 is seen behind, one and two hops out, drawn from real AS paths.

AS3292Toward the internet core
Upstream graph for AS3292: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3292TDC Holding A/SThis networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS398465Rackdog LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS8220COLTAS32590Valve Corporation

Networks observed one and two hops upstream of AS3292 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

331

adjacent networks

Upstreams
3711%
Peers
19258%
Downstreams
10231%

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

Upstreams of AS3292
NetworkCountryRelationshipPathsVantage pts
AS6453TATA Communications (America) IncUSPeer4,66826
AS1299Arelion (fka. Telia Carrier)SEPeer3,28034
AS3356Lumen (Level 3)USPeer3,12724
AS3257GTT Communications Inc.USPeer2,97746
AS3491PCCW Global (HK) Ltd.HKPeer2,37211
AS2497Internet Initiative Japan Inc.JPPeer1,8005
AS6939Hurricane Electric LLCUSPeer1,50013
AS9002RETN LimitedGBPeer1,4596
AS13030Init7 (Switzerland) Ltd.CHPeer1,4065
AS12956Telxius (Telefonica Global)ESPeer1,2686

Prefixes

All 180

The largest blocks AS3292 originates, widest first.

Largest prefixes originated by AS3292
PrefixAddressesVisibility
80.160.0.0/13524k77/78
87.48.0.0/13524k77/78
188.176.0.0/13524k77/78
2.104.0.0/14262k78/78
80.196.0.0/14262k78/78
83.88.0.0/14262k78/78
93.160.0.0/14262k78/78
2.108.0.0/15131k78/78
62.242.0.0/15131k78/78
80.62.0.0/15131k78/78

Routing health

How AS3292'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

  • Valid68.3%123
  • Invalid1.7%3
  • No ROA30.0%54

Propagation

  • Globally propagated90% of full-feed peers or more95.6%172
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%4.4%8

Prefix sizes

IPv4 — 176 prefixes

IPv6 — 4 prefixes

  • /2934.4B × /6425.0%1
  • /324.3B × /6450.0%2
  • /4865.5k × /6425.0%1

Recent changes

Announcements that started or stopped since 15th Oct 2026.

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