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AS10557Connect Northwest Internet Services, LLC

United StatesRegistryARIN

As of 10th November 2026, AS10557 (Connect Northwest Internet Services, LLC), a network registered in the United States with ARIN, originates 92 IPv4 prefixes covering 35.8k addresses. By IPv4 address space that makes it the 5,252nd-largest of the 80,723 networks we see originating IPv4, and the 1,820th-largest of 18,750 in the United States. It is seen behind 1 upstream network, most often AS18530 (Isomedia, Inc.). 86% of its announcements have a valid RPKI ROA; 5 are RPKI-invalid. 88% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

92

IPv6 prefixes

0

IPv4 addresses

35.8k

IPv6 /64s

0

Upstream graph

The networks AS10557 is seen behind, one and two hops out, drawn from real AS paths.

AS10557Toward the internet core
Upstream graph for AS10557: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS10557Connect Northwest…This networkAS18530Isomedia, Inc.AS209Lumen (ex. Qwest)AS11404Astound (fka. Wav…

Networks observed one and two hops upstream of AS10557 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS10557
NetworkCountryRelationshipPathsVantage pts
AS18530Isomedia, Inc.USPeer6,16776

Prefixes

All 92

The largest blocks AS10557 originates, widest first.

Largest prefixes originated by AS10557
PrefixAddressesVisibility
5.252.248.0/221k1/76
23.27.56.0/221k76/76
31.132.60.0/221k1/76
77.75.52.0/221k1/76
79.174.8.0/221k76/76
91.90.80.0/221k1/76
139.28.92.0/221k1/76
142.252.12.0/221k76/76
172.121.244.0/221k76/76
173.245.64.0/221k76/76

Routing health

How AS10557'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

  • Valid85.9%79
  • Invalid5.4%5
  • No ROA8.7%8

Propagation

  • Globally propagated90% of full-feed peers or more88.0%81
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%12.0%11

Prefix sizes

IPv4 — 92 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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