asn.dev

Observed topology

AS4455 BSO IX Reach Ltd

Unclassified RIPE NSP

Upstreams 55 carry this network
Downstreams 78 this network carries
Adjacent (IPv4) 131
Adjacent (IPv6) 72
Upstream graph Who carries AS4455, and who carries them, drawn as a map up to the transit-free core. 37 exchanges Where AS4455 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 55

Networks observed carrying traffic for AS4455: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6900
AS6939Hurricane Electric LLCTransitIPv4 IPv6289
AS174Cogent Communications, LLCTransitIPv4 IPv6210
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6119
AS6461Zayo BandwidthTransitIPv461
AS24482SG.GSHostingIPv4 IPv653
AS8529Zain Omantel International FZ-LLCUnclassifiedIPv4 IPv650
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv648
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv644
AS22652Videotron LteeResidentialIPv4 IPv636

All 55 upstreams →

Transit

Downstream networks

All 78

Networks for which AS4455 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS197816Etix Everywhere Ouest SASUnclassifiedIPv4 IPv6851
AS15623Cyberlink AGUnclassifiedIPv4 IPv6750
AS212633EE Mobile Telecom LtdUnclassifiedIPv4 IPv6739
AS209336GB Wholesale Networks LTDUnclassifiedIPv4 IPv6528
AS205091EuroNet Internet LtdUnclassifiedIPv4 IPv6438
AS25582NWIP LtdUnclassifiedIPv4 IPv6333
AS205019G1SAT B.V.UnclassifiedIPv4300
AS15547netplus.ch SAResidentialIPv4259
AS212228servinga GmbHUnclassifiedIPv4 IPv6217
AS43424SQUARK SARLUnclassifiedIPv4 IPv6206

All 78 downstreams →

Adjacency

Adjacent networks

All 141

Every AS seen directly next to AS4455 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv63,209
AS197816Etix Everywhere Ouest SASUnclassifiedIPv4 IPv61,445
AS15623Cyberlink AGUnclassifiedIPv4 IPv61,229
AS5511Orange S.A.TransitIPv4 IPv61,108
AS12387TON Total optical Networks AGUnclassifiedIPv4 IPv61,099
AS6939Hurricane Electric LLCTransitIPv4 IPv61,061
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv61,023
AS39545Fluidone Ltd.UnclassifiedIPv4 IPv6958
AS212633EE Mobile Telecom LtdUnclassifiedIPv4 IPv6739
AS205402Intercity Technology LtdUnclassifiedIPv4677

All 141 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.