asn.dev

Observed topology

AS35228 O2BROADBAND

Upstreams 22 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 25
Adjacent (IPv6) 12

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS35228: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS5089Virgin Media LimitedResidentialIPv4 IPv65,335
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv4 IPv61,010
AS6939Hurricane Electric LLCTransitIPv4 IPv6189
AS9002RETN LimitedUnclassifiedIPv4 IPv6158
AS3257GTT Communications Inc.TransitIPv4 IPv694
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv683
AS50304Blix Solutions ASUnclassifiedIPv440
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv621
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4 IPv621
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv621
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv621
AS24482SG.GSHostingIPv4 IPv621
AS3216PJSC "Vimpelcom"MobileIPv420
AS3741Dimension DataUnclassifiedIPv420
AS37100SEACOM LimitedUnclassifiedIPv420
AS57463NetIX Communications JSCUnclassifiedIPv420
AS12552GlobalConnect ABUnclassifiedIPv420
AS37721Virtual Technologies & SolutionsResidentialIPv420
AS7575Australian Academic and Research Network (AARNet)EducationIPv419
AS20562Broadband Hosting B.V.HostingIPv412
AS33891Core-Backbone GmbHHostingIPv42
AS213241TECHIT.BE SRLResidentialIPv61

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS35228 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS29180Telefonica UK LimitedUnclassifiedIPv41,336
AS57850Northumbrian Water LtdUnclassifiedIPv461
AS50063Sainsbury's Supermarkets LtdUnclassifiedIPv461
AS39060Sainsbury's Supermarkets LtdUnclassifiedIPv461

Adjacency

Adjacent networks

37 shown

Every AS seen directly next to AS35228 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS5089Virgin Media LimitedResidentialIPv4 IPv65,695
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv4 IPv61,521
AS29180Telefonica UK LimitedUnclassifiedIPv41,336
AS6939Hurricane Electric LLCTransitIPv4 IPv6342
AS9002RETN LimitedUnclassifiedIPv4 IPv6291
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6140
AS3257GTT Communications Inc.TransitIPv4 IPv6132
AS50304Blix Solutions ASUnclassifiedIPv478
AS50063Sainsbury's Supermarkets LtdUnclassifiedIPv461
AS39060Sainsbury's Supermarkets LtdUnclassifiedIPv461
AS57850Northumbrian Water LtdUnclassifiedIPv461
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv640
AS24482SG.GSHostingIPv4 IPv640
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4 IPv640
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv640
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv640
AS37100SEACOM LimitedUnclassifiedIPv439
AS3741Dimension DataUnclassifiedIPv439
AS12552GlobalConnect ABUnclassifiedIPv439
AS3216PJSC "Vimpelcom"MobileIPv439
AS57463NetIX Communications JSCUnclassifiedIPv439
AS37721Virtual Technologies & SolutionsResidentialIPv439
AS7575Australian Academic and Research Network (AARNet)EducationIPv438
AS20562Broadband Hosting B.V.HostingIPv413
AS33891Core-Backbone GmbHHostingIPv42
AS213241TECHIT.BE SRLResidentialIPv61

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS35228, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom195.66.224.232925

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.