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AS63156TEGNA Inc.

United StatesRegistryARIN

As of 24th October 2026, AS63156 (TEGNA Inc.), a network registered in the United States with ARIN, originates 14 IPv4 prefixes covering 3.6k addresses. By IPv4 address space that makes it the 19,014th-largest of the 79,642 networks we see originating IPv4, and the 5,238th-largest of 18,487 in the United States. It is seen behind 1 upstream network, most often AS6461 (Zayo Bandwidth). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

14

IPv6 prefixes

0

IPv4 addresses

3.6k

IPv6 /64s

0

Upstream graph

The networks AS63156 is seen behind, one and two hops out, drawn from real AS paths.

AS63156Toward the internet core
Upstream graph for AS63156: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS63156TEGNA Inc.This networkAS6461Zayo BandwidthAS2914NTT America, Inc.AS32590Valve Corporation

Networks observed one and two hops upstream of AS63156 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS63156
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer1,06476

Prefixes

The largest blocks AS63156 originates, widest first.

Largest prefixes originated by AS63156
PrefixAddressesVisibility
167.8.0.0/2425676/76
167.8.4.0/2425676/76
167.8.7.0/2425676/76
167.8.13.0/2425676/76
167.8.27.0/2425676/76
167.8.69.0/2425676/76
167.8.89.0/2425676/76
167.8.100.0/2425676/76
167.8.102.0/2425676/76
167.8.104.0/2425676/76

Routing health

How AS63156'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%14

Propagation

  • Globally propagated90% of full-feed peers or more100.0%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 14 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS63156 started or stopped in this period.

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