subnet.im

AS3112OARnet

United StatesRegistryARIN

As of 22nd October 2026, AS3112 (OARnet), a network registered in the United States with ARIN, originates 38 IPv4 prefixes covering 70.4k addresses. By IPv4 address space that makes it the 3,087th-largest of the 79,663 networks we see originating IPv4, and the 1,008th-largest of 18,476 in the United States. It is seen behind 1 upstream network, most often AS11537 (Internet2), and in front of 38 downstream networks. None of its announcements have a valid RPKI ROA. 0% of its routes reach at least 90% of full-feed peers, and 16 prefixes are also originated by another network.

At a glance

IPv4 prefixes

38

IPv6 prefixes

0

IPv4 addresses

70.4k

IPv6 /64s

0

Upstream graph

The networks AS3112 is seen behind, one and two hops out, drawn from real AS paths.

AS3112Toward the internet core
Upstream graph for AS3112: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3112OARnetThis networkAS11537Internet2AS293ESnetAS2153CENIC

Networks observed one and two hops upstream of AS3112 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

78

adjacent networks

Upstreams
11%
Peers
3950%
Downstreams
3849%

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

Upstreams of AS3112
NetworkCountryRelationshipPathsVantage pts
AS11537Internet2USPeer5332

Prefixes

All 38

The largest blocks AS3112 originates, widest first.

Largest prefixes originated by AS3112
PrefixAddressesVisibility
140.141.0.0/1732.8k2/77
64.254.64.0/204.1k2/77
199.18.32.0/204.1k2/77
157.134.240.0/212k2/77
192.153.32.0/212k2/77
205.133.216.0/212k2/77
206.21.56.0/212k2/77
208.108.128.0/212k2/77
208.108.168.0/212k2/77
208.108.176.0/212k2/77

Routing health

How AS3112'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%38

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%100.0%38

Prefix sizes

IPv4 — 38 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS3112 started or stopped in this period.

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