asn.dev

Observed topology

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

Unclassified RIPE NSP

Upstreams 9 carry this network
Downstreams 110 this network carries
Adjacent (IPv4) 114
Adjacent (IPv6) 29
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
AS1299Arelion Sweden ABTransitIPv4 IPv657,172
AS32098Transtelco IncUnclassifiedIPv4 IPv649,650
AS174Cogent Communications, LLCTransitIPv4 IPv645,802
AS6461Zayo BandwidthTransitIPv41,460
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6646
AS23520Columbus Networks USA, Inc.ResidentialIPv4 IPv6242
AS3491PCCW Global (HK) Ltd.TransitIPv4188
AS6503Axtel, S.A.B. de C.V.UnclassifiedIPv453
AS701Verizon BusinessResidentialIPv413

Transit

Downstream networks

All 110

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

ASNetworkTypeFamiliesPaths seen
AS10479Instituto Tecnologico y de Estudios Superiores de MonterreyEducationIPv42,120
AS13579INFOTEC CENTRO DE INVESTIGACION E INNOVACION EN TECNOLOGIAS DE LA INFORMACION Y COMUNICACIONUnclassifiedIPv41,115
AS10436Instituto Tecnologico y de Estudios Superiores de MonterreyEducationIPv41,013
AS28506Sistemas de Communicacion GM S.A. de C.V.UnclassifiedIPv4995
AS28502Axtel, S.A.B. de C.V.UnclassifiedIPv4940
AS22011Sixsigma Networks Mexico, S.A. de C.V.UnclassifiedIPv4709
AS17072TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.UnclassifiedIPv4 IPv6664
AS11136Instituto Tecnologico y de Estudios Superiores de MonterreyEducationIPv4590
AS278Universidad Nacional Autonoma de MexicoUnclassifiedIPv4517
AS28381Grupo Hidalguense de Desarrollo, S.A. de C.V.UnclassifiedIPv4479

All 110 downstreams →

Adjacency

Adjacent networks

All 118

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

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv664,205
AS174Cogent Communications, LLCTransitIPv4 IPv653,378
AS32098Transtelco IncUnclassifiedIPv4 IPv651,106
AS6461Zayo BandwidthTransitIPv4 IPv63,372
AS10479Instituto Tecnologico y de Estudios Superiores de MonterreyEducationIPv42,120
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv61,192
AS17072TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.UnclassifiedIPv4 IPv61,119
AS13579INFOTEC CENTRO DE INVESTIGACION E INNOVACION EN TECNOLOGIAS DE LA INFORMACION Y COMUNICACIONUnclassifiedIPv41,115
AS10436Instituto Tecnologico y de Estudios Superiores de MonterreyEducationIPv41,013
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,006

All 118 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.