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AS22056Sitel

United StatesRegistryARIN

As of 26th September 2026, AS22056 (Sitel), a network registered in the United States with ARIN, originates 9 IPv4 prefixes covering 2.3k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 24,092nd-largest of the 79,516 networks we see originating IPv4, and the 6,037th-largest of 18,424 in the United States. It is seen behind 6 upstream networks, most often AS3356 (Lumen (Level 3)) and AS7018 (AT&T Enterprises, LLC), and in front of 1 downstream network. 18% 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

9

IPv6 prefixes

2

IPv4 addresses

2.3k

IPv6 /64s

131k

Upstream graph

The networks AS22056 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS22056 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

15

adjacent networks

Upstreams
640%
Peers
853%
Downstreams
17%

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

Upstreams of AS22056
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer34992
AS7018AT&T Enterprises, LLCUSPeer257128
AS8220COLTGBPeer14281
AS4230Claro (Embratel)BRPeer8945
AS6267GTT Americas, LLCUSPeer8181
AS15830Equinix, Inc.NLPeer2020

Prefixes

The largest blocks AS22056 originates, widest first.

Largest prefixes originated by AS22056
PrefixAddressesVisibility
193.240.244.0/2425681/81
199.73.22.0/2425681/81
204.153.8.0/2425681/81
204.153.9.0/2425681/81
204.153.10.0/2425681/81
204.153.11.0/2425681/81
205.219.133.0/2425681/81
206.19.231.0/2425681/81
209.80.66.0/2425681/81
2620:10b:4001::/4865.5k × /6464/64

Routing health

How AS22056'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

  • Valid18.2%2
  • Invalid0.0%0
  • No ROA81.8%9

Propagation

  • Globally propagated90% of full-feed peers or more100.0%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS22056 started or stopped in this period.

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