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AS4261Intermart Inc.

United StatesRegistryARIN

As of 27th September 2026, AS4261 (Intermart Inc.), a network registered in the United States with ARIN, originates 5 IPv4 prefixes covering 17.2k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 7,764th-largest of the 79,525 networks we see originating IPv4, and the 2,493rd-largest of 18,428 in the United States. It is seen behind 2 upstream networks, most often AS174 (Cogent Communications, LLC) and AS54035 (Davey Holdings LLC), and in front of 3 downstream networks. 67% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

1

IPv4 addresses

17.2k

IPv6 /64s

4.3B

Upstream graph

The networks AS4261 is seen behind, one and two hops out, drawn from real AS paths.

AS4261Toward the internet core
Upstream graph for AS4261: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4261Intermart Inc.This networkAS174Cogent Communicat…AS54035Davey Holdings LLCAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS393444Accelecom

Networks observed one and two hops upstream of AS4261 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

9

adjacent networks

Upstreams
222%
Peers
444%
Downstreams
333%

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

Upstreams of AS4261
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer726139
AS54035Davey Holdings LLCUSPeer19649

Prefixes

The largest blocks AS4261 originates, widest first.

Largest prefixes originated by AS4261
PrefixAddressesVisibility
216.135.64.0/198.2k81/81
69.64.0.0/204.1k81/81
173.237.224.0/204.1k81/81
199.89.192.0/2351280/81
204.87.165.0/2425680/81
2605:8000::/324.3B × /6459/64

Routing health

How AS4261'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

  • Valid66.7%4
  • Invalid0.0%0
  • No ROA33.3%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS4261 started or stopped in this period.

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