asn.dev

Observed topology

AS6400 Compania Dominicana de Telefonos S. A.

Residential RIPE

Upstreams 6 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 14
Upstream graph Who carries AS6400, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS6400 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS6400: 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
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv62,286
AS1299Arelion Sweden ABTransitIPv4 IPv61,911
AS2914NTT America, Inc.TransitIPv4 IPv61,208
AS174Cogent Communications, LLCTransitIPv4 IPv61,024
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv4 IPv6245
AS701Verizon BusinessResidentialIPv4 IPv6106

Transit

Downstream networks

All 13

Networks for which AS6400 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS273157CORPORACION DE COMUNICACIONES Y TELEFONIA TURISTICA JUANILLO, S.A.UnclassifiedIPv4 IPv6391
AS262178Pontificia Universidad Catolica Madre y Maestra (PUCMM)UnclassifiedIPv4 IPv6380
AS267896Direccion General De Impuestos InternosUnclassifiedIPv4 IPv6145
AS274192TELECABLE EL CERCADO, S.R.L.UnclassifiedIPv4 IPv689
AS266709Oficina Presidencial de la Tecnologias de Informacion y ComunicacionUnclassifiedIPv470
AS262931Servicios De Ti Dominicana Sc,SasUnclassifiedIPv4 IPv663
AS264817REFINERIA DOMINICANA DE PETROLEO PDV S.AUnclassifiedIPv4 IPv662
AS263723DRL MANUFACTURING SPMUnclassifiedIPv458
AS262247Banco Popular DominicanoUnclassifiedIPv455
AS262148Universidad APECUnclassifiedIPv436

All 13 downstreams →

Adjacency

Adjacent networks

All 19

Every AS seen directly next to AS6400 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv62,681
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv62,456
AS2914NTT America, Inc.TransitIPv4 IPv61,555
AS174Cogent Communications, LLCTransitIPv4 IPv61,139
AS273157CORPORACION DE COMUNICACIONES Y TELEFONIA TURISTICA JUANILLO, S.A.UnclassifiedIPv4 IPv6391
AS262178Pontificia Universidad Catolica Madre y Maestra (PUCMM)UnclassifiedIPv4 IPv6380
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv4 IPv6254
AS267896Direccion General De Impuestos InternosUnclassifiedIPv4 IPv6145
AS701Verizon BusinessResidentialIPv4 IPv6130
AS274192TELECABLE EL CERCADO, S.R.L.UnclassifiedIPv4 IPv689

All 19 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.