asn.dev

Observed topology

AS28545 AS28545 - Cablemas Telecomunicaciones SA de CV

Unclassified LACNIC

Upstreams 2 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 8
Upstream graph Who carries AS28545, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS28545 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS28545: 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
AS18734Operbes, S.A. de C.V.UnclassifiedIPv4 IPv61,569
AS23520Columbus Networks USA, Inc.ResidentialIPv4 IPv61,429

Transit

Downstream networks

inferred

Networks for which AS28545 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS28512Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv64,760
AS28549Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv62,089
AS28509Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv61,358
AS28556Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv6633
AS28533Mexico Red de Telecomunicaciones, S. de R.L. de C.V.UnclassifiedIPv4 IPv6277
AS16960Television Internacional, S.A. de C.V.UnclassifiedIPv4200
AS28531Mexico Red de Telecomunicaciones, S. de R.L. de C.V.UnclassifiedIPv4 IPv689
AS28532Mexico Red de Telecomunicaciones, S. de R.L. de C.V.UnclassifiedIPv458

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS28545 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS18734Operbes, S.A. de C.V.UnclassifiedIPv4 IPv67,425
AS23520Columbus Networks USA, Inc.ResidentialIPv4 IPv65,797
AS28512Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv64,760
AS28549Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv62,089
AS28509Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv61,358
AS28556Cablemas Telecomunicaciones SA de CVUnclassifiedIPv4 IPv6633
AS28533Mexico Red de Telecomunicaciones, S. de R.L. de C.V.UnclassifiedIPv4 IPv6277
AS16960Television Internacional, S.A. de C.V.UnclassifiedIPv4200
AS28531Mexico Red de Telecomunicaciones, S. de R.L. de C.V.UnclassifiedIPv4 IPv689
AS28532Mexico Red de Telecomunicaciones, S. de R.L. de C.V.UnclassifiedIPv458

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.