asn.dev

Observed topology

AS11172 Alestra, S. de R.L. de C.V.

Unclassified RIPE NSP

Upstreams 9 carry this network
Downstreams 108 this network carries
Adjacent (IPv4) 114
Adjacent (IPv6) 28
Upstream graph Who carries AS11172, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS11172 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS11172: 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
AS174Cogent Communications, LLCTransitIPv4 IPv670,440
AS1299Arelion Sweden ABTransitIPv4 IPv658,136
AS32098Transtelco IncUnclassifiedIPv4 IPv624,964
AS6461Zayo BandwidthTransitIPv41,296
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6714
AS3491PCCW Global HK Ltd.TransitIPv4240
AS23520Columbus Networks USA, Inc.ResidentialIPv4 IPv6141
AS6503S.A.B. de C.V.UnclassifiedIPv452
AS701Verizon BusinessResidentialIPv444

Transit

Downstream networks

All 108

Networks for which AS11172 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS10479Tecnologico y de Estudios Superiores de MonterreyEducationIPv42,088
AS28506de Communicacion GM S.A. de C.V.UnclassifiedIPv41,157
AS13579CENTRO DE INVESTIGACION E INNOVACION EN TECNOLOGIAS DE LA INFORMACION Y COMUNICACIONUnclassifiedIPv41,094
AS17072PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.UnclassifiedIPv4 IPv61,083
AS28502S.A.B. de C.V.UnclassifiedIPv4934
AS10436Tecnologico y de Estudios Superiores de MonterreyEducationIPv4924
AS22011Networks Mexico, S.A. de C.V.UnclassifiedIPv4696
AS11136Tecnologico y de Estudios Superiores de MonterreyEducationIPv4573
AS278Nacional Autonoma de MexicoUnclassifiedIPv4513
AS28381Hidalguense de Desarrollo, S.A. de C.V.UnclassifiedIPv4464

All 108 downstreams →

Adjacency

Adjacent networks

All 117

Every AS seen directly next to AS11172 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv678,607
AS1299Arelion Sweden ABTransitIPv4 IPv665,114
AS32098Transtelco IncUnclassifiedIPv4 IPv626,360
AS6461Zayo BandwidthTransitIPv4 IPv63,061
AS10479Tecnologico y de Estudios Superiores de MonterreyEducationIPv42,088
AS17072PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.UnclassifiedIPv4 IPv61,381
AS28506de Communicacion GM S.A. de C.V.UnclassifiedIPv41,157
AS3491PCCW Global HK Ltd.TransitIPv4 IPv61,132
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,096
AS13579CENTRO DE INVESTIGACION E INNOVACION EN TECNOLOGIAS DE LA INFORMACION Y COMUNICACIONUnclassifiedIPv41,094

All 117 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.