asn.dev

Observed topology

AS34555 CCS-LEEDS-ASN Unit A, Seacroft Trade Park

Residential RIPE Cable/DSL/ISP

Upstreams 21 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 5
Upstream graph Who carries AS34555, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS34555 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 21

Networks observed carrying traffic for AS34555: 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
AS2914NTT America, Inc.TransitIPv4 IPv6336
AS174Cogent Communications, LLCTransitIPv4 IPv6174
AS6939Hurricane Electric LLCTransitIPv4 IPv6150
AS9002RETN LimitedUnclassifiedIPv468
AS34549meerfarbig GmbH & Co. KGHostingIPv451
AS29169GANDI SASHostingIPv4 IPv618
AS3216PJSC "Vimpelcom"MobileIPv417
AS3741Dimension DataUnclassifiedIPv417
AS4657StarHub LtdResidentialIPv417
AS12552GlobalConnect ABUnclassifiedIPv417

All 21 upstreams →

Transit

Downstream networks

inferred

Networks for which AS34555 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS50656Optix Software LtdUnclassifiedIPv4118
AS211198WhiteSpider Enterprise Services LimitedUnclassifiedIPv459
AS201226Leasing Options LimitedUnclassifiedIPv440
AS61337Single Mode Networks LtdUnclassifiedIPv424

Adjacency

Adjacent networks

All 25

Every AS seen directly next to AS34555 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2914NTT America, Inc.TransitIPv4 IPv6372
AS174Cogent Communications, LLCTransitIPv4 IPv6240
AS6939Hurricane Electric LLCTransitIPv4 IPv6174
AS50656Optix Software LtdUnclassifiedIPv4118
AS33891Core-Backbone GmbHHostingIPv4103
AS61337Single Mode Networks LtdUnclassifiedIPv494
AS9002RETN LimitedUnclassifiedIPv489
AS34549meerfarbig GmbH & Co. KGHostingIPv466
AS211198WhiteSpider Enterprise Services LimitedUnclassifiedIPv459
AS201226Leasing Options LimitedUnclassifiedIPv440

All 25 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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