asn.dev

Observed topology

AS6461 ZAYO-6461 - Zayo Bandwidth

Transit DROP-listed space ARIN NSP

Upstreams 54 carry this network
Downstreams 2,568 this network carries
Adjacent (IPv4) 2,660
Adjacent (IPv6) 844
Upstream graph Who carries AS6461, and who carries them, drawn as a map up to the transit-free core. 52 exchanges Where AS6461 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 54

Networks observed carrying traffic for AS6461: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv61,621
AS174Cogent Communications, LLCTransitIPv4 IPv61,312
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,173
AS2914NTT America, Inc.TransitIPv4707
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6705
AS1299Arelion Sweden ABTransitIPv4 IPv6695
AS3257GTT Communications Inc.TransitIPv4 IPv6488
AS577Bell CanadaMobileIPv4 IPv6476
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv6466
AS2152CENICUnclassifiedIPv4250

All 54 upstreams →

Transit

Downstream networks

All 2,568

Networks for which AS6461 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS7155ViaSat,Inc.ResidentialIPv4153,417
AS46887Crown Castle Fiber LLCUnclassifiedIPv4 IPv655,328
AS30036Mediacom Communications CorpResidentialIPv4 IPv626,511
AS13977FidiumResidentialIPv426,401
AS11798Ace Data Centers, Inc.HostingIPv422,156
AS9498BHARTI Airtel Ltd.MobileIPv4 IPv621,868
AS16509Amazon.com, Inc.HostingIPv4 IPv621,794
AS35986Vyve BroadbandUnclassifiedIPv419,852
AS11686Zayo BandwidthEducationIPv414,646
AS6621Hughes Network Systems, LLCResidentialIPv4 IPv611,307

All 2,568 downstreams →

Adjacency

Adjacent networks

All 2,660

Every AS seen directly next to AS6461 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6231,856
AS46887Crown Castle Fiber LLCUnclassifiedIPv4 IPv6212,021
AS577Bell CanadaMobileIPv4 IPv6189,599
AS6939Hurricane Electric LLCTransitIPv4 IPv6161,830
AS7155ViaSat,Inc.ResidentialIPv4157,891
AS2152CENICUnclassifiedIPv4145,232
AS7473Singapore Telecommunications LtdUnclassifiedIPv4 IPv6144,928
AS9498BHARTI Airtel Ltd.MobileIPv4 IPv6136,397
AS852TELUS Communications Inc.ResidentialIPv4 IPv6119,236
AS6424EDGOO NETWORKS UNIPESSOAL LDAHostingIPv4 IPv6116,225

All 2,660 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-09 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.03M 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.