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AS56508Amateur Radio Digital Communications

United StatesRegistryRIPE NCC

As of 10th November 2026, AS56508 (Amateur Radio Digital Communications), a network registered in the United States with RIPE NCC, originates 30 IPv4 prefixes covering 73k addresses. By IPv4 address space that makes it the 3,047th-largest of the 80,733 networks we see originating IPv4, and the 986th-largest of 18,751 in the United States. It is seen behind 1 upstream network, most often AS20473 (The Constant Company, LLC), and in front of 1 downstream network. 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

30

IPv6 prefixes

0

IPv4 addresses

73k

IPv6 /64s

0

Upstream graph

The networks AS56508 is seen behind, one and two hops out, drawn from real AS paths.

AS56508Toward the internet core
Upstream graph for AS56508: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS56508Amateur Radio Dig…This networkAS20473The Constant Comp…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS56508 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

5

adjacent networks

Upstreams
120%
Peers
360%
Downstreams
120%

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

Upstreams of AS56508
NetworkCountryRelationshipPathsVantage pts
AS20473The Constant Company, LLCUSPeer2,35676

Prefixes

All 30

The largest blocks AS56508 originates, widest first.

Largest prefixes originated by AS56508
PrefixAddressesVisibility
44.27.0.0/1665.5k76/76
44.27.51.0/2425676/76
44.27.96.0/2425676/76
44.27.104.0/2425676/76
44.27.112.0/2425676/76
44.27.128.0/2425676/76
44.27.129.0/2425676/76
44.27.130.0/2425676/76
44.27.131.0/2425676/76
44.27.132.0/2425676/76

Routing health

How AS56508'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%30

Propagation

  • Globally propagated90% of full-feed peers or more100.0%30
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 30 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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