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AS395400UNIVERSITY OF GUAM

GuamRegistryARIN

As of 22nd October 2026, AS395400 (UNIVERSITY OF GUAM), a network registered in Guam with ARIN, originates 4 IPv4 prefixes covering 131k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 1,936th-largest of the 79,655 networks we see originating IPv4, and the 2nd-largest of 7 in Guam. It is seen behind 9 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3605 (Guam Cablevision, LLC.), and in front of 1 downstream network. 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

4

IPv6 prefixes

1

IPv4 addresses

131k

IPv6 /64s

4.3B

Upstream graph

The networks AS395400 is seen behind, one and two hops out, drawn from real AS paths.

AS395400Toward the internet core
Upstream graph for AS395400: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS395400UNIVERSITY OF GUAMThis networkAS3605Guam Cablevision,…AS6939Hurricane Electri…AS7131PTI Pacifica Inc.AS17456Pacific Data Syst…AS24482SG.GSAS2497Internet Initiati…AS2914NTT America, Inc.AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS38623Metfone (Viettel …AS215859Hetzner Cloud - S…

Networks observed one and two hops upstream of AS395400 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

28

adjacent networks

Upstreams
932%
Peers
1864%
Downstreams
14%

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

Upstreams of AS395400
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer286139
AS3605Guam Cablevision, LLC.GUPeer27782
AS7131PTI Pacifica Inc.GUPeer4343
AS17456Pacific Data SystemsUSPeer1010
AS24482SG.GSSGPeer93
AS6360University of HawaiiUSPeer82
AS49544i3D.net B.VNLPeer52
AS35280F5 Networks SARLFRPeer52
AS4775Globe TelecomsPHPeer41

Prefixes

The largest blocks AS395400 originates, widest first.

Largest prefixes originated by AS395400
PrefixAddressesVisibility
168.123.0.0/1665.5k77/77
168.123.0.0/1732.8k77/77
168.123.128.0/1732.8k77/77
192.149.202.0/2425677/77
2604:49c0::/324.3B × /6463/64

Routing health

How AS395400'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%5
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS395400 started or stopped in this period.

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