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AS44355Colocation Ltd

United KingdomRegistryRIPE NCC

As of 27th September 2026, AS44355 (Colocation Ltd), a network registered in the United Kingdom with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 59,129th-largest of the 79,523 networks we see originating IPv4, and the 1,594th-largest of 2,075 in the United Kingdom. It is seen behind 6 upstream networks, most often AS61049 (Exascale Ltd) and AS207841 (Inferno Communications Ltd), and in front of 9 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

2

IPv4 addresses

256

IPv6 /64s

16.8M

Upstream graph

The networks AS44355 is seen behind, one and two hops out, drawn from real AS paths.

AS44355Toward the internet core
Upstream graph for AS44355: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS44355Colocation LtdThis networkAS3170VeloxServ Communi…AS6939Hurricane Electri…AS13237euNetworks GmbHAS61049Exascale LtdAS207841Inferno Communica…AS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3257GTT Communication…AS1299Arelion (fka. Tel…AS137409GSL Networks Pty …

Networks observed one and two hops upstream of AS44355 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

34

adjacent networks

Upstreams
618%
Peers
1956%
Downstreams
926%

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

Upstreams of AS44355
NetworkCountryRelationshipPathsVantage pts
AS61049Exascale LtdGBPeer80364
AS207841Inferno Communications LtdGBPeer75940
AS6939Hurricane Electric LLCUSPeer42366
AS3170VeloxServ Communications LtdGBPeer132
AS41811CONVERGENCE (GROUP NETWORKS) LIMITEDGBPeer71
AS13237euNetworks GmbHDEPeer71

Prefixes

The largest blocks AS44355 originates, widest first.

Largest prefixes originated by AS44355
PrefixAddressesVisibility
193.57.167.0/2425681/81
2a0f:85c2:100::/4016.8M × /6463/64
2a0f:85c0:2::/4865.5k × /6463/64

Routing health

How AS44355'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 2 prefixes

  • /4016.8M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS44355 started or stopped in this period.

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