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AS13672Fidium

United StatesRegistryARIN

As of 23rd October 2026, AS13672 (Fidium), a network registered in the United States with ARIN, originates 44 IPv4 prefixes covering 81.2k addresses. By IPv4 address space that makes it the 2,745th-largest of the 79,652 networks we see originating IPv4, and the 884th-largest of 18,475 in the United States. It is seen behind 1 upstream network, most often AS13977 (Fidium), 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

44

IPv6 prefixes

0

IPv4 addresses

81.2k

IPv6 /64s

0

Upstream graph

The networks AS13672 is seen behind, one and two hops out, drawn from real AS paths.

AS13672Toward the internet core
Upstream graph for AS13672: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13672FidiumThis networkAS13977FidiumAS174Cogent Communicat…AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS13672 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

4

adjacent networks

Upstreams
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS13672
NetworkCountryRelationshipPathsVantage pts
AS13977FidiumUSPeer3,38076

Prefixes

All 44

The largest blocks AS13672 originates, widest first.

Largest prefixes originated by AS13672
PrefixAddressesVisibility
71.168.64.0/1816.4k76/77
72.71.192.0/1816.4k76/77
71.181.0.0/198.2k76/77
71.181.64.0/198.2k76/77
71.161.112.0/204.1k76/77
71.181.32.0/204.1k76/77
71.181.96.0/204.1k76/77
71.255.112.0/204.1k76/77
72.64.0.0/204.1k76/77
71.181.120.0/212k76/77

Routing health

How AS13672'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%44

Propagation

  • Globally propagated90% of full-feed peers or more100.0%44
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 44 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS13672 started or stopped in this period.

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