subnet.im

AS400494Cirrascale Cloud Services LLC

United StatesRegistryARIN

As of 26th September 2026, AS400494 (Cirrascale Cloud Services LLC), a network registered in the United States with ARIN, originates 14 IPv4 prefixes covering 3.6k addresses. By IPv4 address space that makes it the 19,025th-largest of the 79,516 networks we see originating IPv4, and the 5,245th-largest of 18,424 in the United States. It is seen behind 6 upstream networks, most often AS6461 (Zayo Bandwidth) and AS174 (Cogent Communications, LLC). 79% of its announcements have 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

14

IPv6 prefixes

0

IPv4 addresses

3.6k

IPv6 /64s

0

Upstream graph

The networks AS400494 is seen behind, one and two hops out, drawn from real AS paths.

AS400494Toward the internet core
Upstream graph for AS400494: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS400494Cirrascale Cloud …This networkAS174Cogent Communicat…AS701Verizon BusinessAS3356Lumen (Level 3)AS6461Zayo BandwidthAS11427Charter Communica…AS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS7843Spectrum (Charter)AS20115Spectrum (Charter)

Networks observed one and two hops upstream of AS400494 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

13

adjacent networks

Upstreams
646%
Peers
754%
Downstreams
00%

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

Upstreams of AS400494
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer32381
AS174Cogent Communications, LLCUSPeer27380
AS3356Lumen (Level 3)USPeer25281
AS701Verizon BusinessUSPeer16281
AS11427Charter Communications IncUSPeer8181
AS1299Arelion (fka. Telia Carrier)SEPeer3938

Prefixes

The largest blocks AS400494 originates, widest first.

Largest prefixes originated by AS400494
PrefixAddressesVisibility
8.19.55.0/2425680/81
38.83.162.0/2425680/81
63.122.152.0/2425681/81
64.70.112.0/2425681/81
64.70.113.0/2425681/81
64.70.114.0/2425681/81
64.70.115.0/2425681/81
64.70.119.0/2425681/81
64.70.120.0/2425681/81
64.70.123.0/2425681/81

Routing health

How AS400494'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

  • Valid78.6%11
  • Invalid0.0%0
  • No ROA21.4%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 14 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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