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AS398754CoastConnect LLC

United StatesRegistryARIN

As of 27th September 2026, AS398754 (CoastConnect LLC), a network registered in the United States with ARIN, originates 95 IPv4 prefixes covering 107k addresses. By IPv4 address space that makes it the 2,297th-largest of the 79,536 networks we see originating IPv4, and the 735th-largest of 18,430 in the United States. It is seen behind 2 upstream networks, most often AS13760 (Uniti Fiber Holdings Inc.) and AS394542 (MS Fiber, 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

95

IPv6 prefixes

0

IPv4 addresses

107k

IPv6 /64s

0

Upstream graph

The networks AS398754 is seen behind, one and two hops out, drawn from real AS paths.

AS398754Toward the internet core
Upstream graph for AS398754: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS398754CoastConnect LLCThis networkAS13760Uniti Fiber Holdi…AS394542MS Fiber, LLCAS3356Lumen (Level 3)AS7029Uniti (fka. Winds…AS174Cogent Communicat…

Networks observed one and two hops upstream of AS398754 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

8

adjacent networks

Upstreams
225%
Peers
563%
Downstreams
113%

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

Upstreams of AS398754
NetworkCountryRelationshipPathsVantage pts
AS13760Uniti Fiber Holdings Inc.USPeer6,55882
AS394542MS Fiber, LLCUSPeer1,35658

Prefixes

All 95

The largest blocks AS398754 originates, widest first.

Largest prefixes originated by AS398754
PrefixAddressesVisibility
152.36.128.0/1816.4k81/82
130.250.64.0/198.2k81/82
140.106.128.0/198.2k81/82
152.36.128.0/198.2k82/82
207.69.0.0/198.2k82/82
134.231.16.0/204.1k81/82
140.106.128.0/204.1k81/82
134.231.16.0/212k82/82
134.231.24.0/212k81/82
140.106.144.0/212k82/82

Routing health

How AS398754'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%95
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%95
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 95 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn152.36.176.0/2421st Sept 2026

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