subnet.im

AS398643Slippery Rock University of Pennsylvania

United StatesRegistryARIN

As of 23rd October 2026, AS398643 (Slippery Rock University of Pennsylvania), a network registered in the United States with ARIN, originates 6 IPv4 prefixes covering 17.4k addresses. By IPv4 address space that makes it the 7,645th-largest of the 79,659 networks we see originating IPv4, and the 2,456th-largest of 18,482 in the United States. It is seen behind 3 upstream networks, most often AS13536 (FirstLight Networks, LLC) and AS3356 (Lumen (Level 3)). Every one of its announcements has 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

6

IPv6 prefixes

0

IPv4 addresses

17.4k

IPv6 /64s

0

Upstream graph

The networks AS398643 is seen behind, one and two hops out, drawn from real AS paths.

AS398643Toward the internet core
Upstream graph for AS398643: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS398643Slippery Rock Uni…This networkAS3356Lumen (Level 3)AS13536FirstLight Networ…AS399855Keystone REN, LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS3770FirstLight Networ…AS6939Hurricane Electri…AS11164Internet2 I2PX

Networks observed one and two hops upstream of AS398643 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS398643
NetworkCountryRelationshipPathsVantage pts
AS13536FirstLight Networks, LLCUSPeer28475
AS3356Lumen (Level 3)USPeer16877
AS399855Keystone REN, LLCUSPeer102

Prefixes

The largest blocks AS398643 originates, widest first.

Largest prefixes originated by AS398643
PrefixAddressesVisibility
205.149.64.0/198.2k77/77
205.149.64.0/204.1k77/77
205.149.80.0/204.1k77/77
204.108.178.0/2351277/77
192.148.234.0/2425677/77
205.149.71.0/2425677/77

Routing health

How AS398643'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

  • Valid100.0%6
  • Invalid0.0%0
  • No ROA0.0%0

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 — 6 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS398643 started or stopped in this period.

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