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AS394542MS Fiber, LLC

United StatesRegistryARIN

As of 27th September 2026, AS394542 (MS Fiber, LLC), a network registered in the United States with ARIN, originates 1 IPv4 prefix covering 1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 35,820th-largest of the 79,536 networks we see originating IPv4, and the 8,138th-largest of 18,430 in the United States. It is seen behind 1 upstream network, most often AS174 (Cogent Communications, LLC), and in front of 18 downstream networks. 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

1

IPv6 prefixes

1

IPv4 addresses

1k

IPv6 /64s

16.8M

Upstream graph

The networks AS394542 is seen behind, one and two hops out, drawn from real AS paths.

AS394542Toward the internet core
Upstream graph for AS394542: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS394542MS Fiber, LLCThis networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…

Networks observed one and two hops upstream of AS394542 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

39

adjacent networks

Upstreams
13%
Peers
2051%
Downstreams
1846%

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

Upstreams of AS394542
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer19,833141

Prefixes

The largest blocks AS394542 originates, widest first.

Largest prefixes originated by AS394542
PrefixAddressesVisibility
170.117.216.0/221k81/82
2602:f962::/4016.8M × /6459/65

Routing health

How AS394542'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%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 1 prefixes

  • /4016.8M × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS394542 started or stopped in this period.

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