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AS41811CONVERGENCE (GROUP NETWORKS) LIMITED

United KingdomRegistryRIPE NCC

As of 26th September 2026, AS41811 (CONVERGENCE (GROUP NETWORKS) LIMITED), a network registered in the United Kingdom with RIPE NCC, originates 17 IPv4 prefixes covering 27.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 5,899th-largest of the 79,480 networks we see originating IPv4, and the 162nd-largest of 2,074 in the United Kingdom. It is seen behind 34 upstream networks, most often AS3356 (Lumen (Level 3)) and AS1273 (Vodafone Group PLC), and in front of 652 downstream networks. 61% 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

17

IPv6 prefixes

1

IPv4 addresses

27.9k

IPv6 /64s

4.3B

Upstream graph

The networks AS41811 is seen behind, one and two hops out, drawn from real AS paths.

AS41811Toward the internet core
Upstream graph for AS41811: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS41811CONVERGENCE (GROU…This networkAS1273Vodafone Group PLCAS3356Lumen (Level 3)AS4637Telstra Internati…AS6939Hurricane Electri…AS25091IP-Max SAAS6667Elisa OyjAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS16552Tiggee LLCAS32590Valve CorporationAS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS41811 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

1,356

adjacent networks

Upstreams
343%
Peers
67049%
Downstreams
65248%

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

Upstreams of AS41811
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer53152
AS1273Vodafone Group PLCEUPeer45733
AS6939Hurricane Electric LLCUSPeer9242
AS4637Telstra International LimitedHKPeer463
AS25091IP-Max SACHPeer353
AS18106Viewqwest Pte LtdSGPeer322
AS38880Micron21 Datacentre Pty LtdAUPeer232
AS5413Wavenet LimitedGBPeer212
AS49544i3D.net B.VNLPeer212
AS37100SEACOM LimitedMUPeer201

Prefixes

The largest blocks AS41811 originates, widest first.

Largest prefixes originated by AS41811
PrefixAddressesVisibility
137.221.128.0/198.2k81/81
37.205.56.0/212k81/81
46.255.112.0/212k81/81
88.151.216.0/212k81/81
88.202.168.0/212k81/81
109.232.56.0/212k81/81
137.221.160.0/212k81/81
137.221.184.0/212k81/81
137.221.168.0/221k81/81
137.221.176.0/221k80/81

Routing health

How AS41811'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

  • Valid61.1%11
  • Invalid0.0%0
  • No ROA38.9%7

Propagation

  • Globally propagated90% of full-feed peers or more100.0%18
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 17 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS41811 started or stopped in this period.

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