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AS13501OARnet

United StatesRegistryARIN

As of 25th October 2026, AS13501 (OARnet), a network registered in the United States with ARIN, originates 7 IPv4 prefixes covering 1.8k addresses. By IPv4 address space that makes it the 29,809th-largest of the 79,675 networks we see originating IPv4, and the 6,816th-largest of 18,492 in the United States. It is seen behind 2 upstream networks, most often AS600 (OARnet) and AS3112 (OARnet). None of its announcements have a valid RPKI ROA. 86% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

7

IPv6 prefixes

0

IPv4 addresses

1.8k

IPv6 /64s

0

Upstream graph

The networks AS13501 is seen behind, one and two hops out, drawn from real AS paths.

AS13501Toward the internet core
Upstream graph for AS13501: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13501OARnetThis networkAS600OARnetAS3112OARnetAS3356Lumen (Level 3)AS6939Hurricane Electri…AS11537Internet2

Networks observed one and two hops upstream of AS13501 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
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS13501
NetworkCountryRelationshipPathsVantage pts
AS600OARnetUSPeer44474
AS3112OARnetUSPeer142

Prefixes

The largest blocks AS13501 originates, widest first.

Largest prefixes originated by AS13501
PrefixAddressesVisibility
192.148.240.0/2425676/76
192.148.247.0/2425676/76
192.148.248.0/2425676/76
192.148.249.0/2425676/76
192.148.250.0/2425676/76
192.157.5.0/2425676/76
199.18.243.0/242562/76

Routing health

How AS13501'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%7

Propagation

  • Globally propagated90% of full-feed peers or more85.7%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%14.3%1

Prefix sizes

IPv4 — 7 prefixes

Recent changes

Announcements that started or stopped since 25th Sept 2026.

No announcement by AS13501 started or stopped in this period.

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