asn.dev

Observed topology

AS273421 AS273421 - MAZA Telecom

Unclassified AFRINIC

Upstreams 4 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 22
Adjacent (IPv6) 14
Upstream graph Who carries AS273421, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS273421 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS273421: 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
AS52468UFINET PANAMA S.A.UnclassifiedIPv617
AS24482SG.GSHostingIPv61
AS35280F5 Networks SARLHostingIPv61
AS37721Virtual Technologies & SolutionsResidentialIPv61

Transit

Downstream networks

All 16

Networks for which AS273421 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS53217INFRANET INTERNET LTDA.UnclassifiedIPv4581
AS264551F NET TELECOMUnclassifiedIPv4 IPv6451
AS28335MAXCOMM LTDA EPPResidentialIPv4 IPv6267
AS22706MAZA Global CarrierUnclassifiedIPv4 IPv6263
AS269196P B Net Cursos Idiomas e Internet LtdaUnclassifiedIPv4 IPv6215
AS265415WAVE PLUS INTERNET LTDA MEUnclassifiedIPv4 IPv6201
AS268096InfoBR TelecomunicacoesUnclassifiedIPv4 IPv6150
AS263674JSneT FibraResidentialIPv4119
AS268828ONDANET TELECOM FIBRA OPTICA EIRELIUnclassifiedIPv4 IPv6114
AS265440TELNET LOGISTICA E TECNOLOGIA LTDAUnclassifiedIPv490

All 16 downstreams →

Adjacency

Adjacent networks

All 23

Every AS seen directly next to AS273421 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv41,596
AS53217INFRANET INTERNET LTDA.UnclassifiedIPv4608
AS174Cogent Communications, LLCTransitIPv4469
AS264551F NET TELECOMUnclassifiedIPv4 IPv6451
AS52468UFINET PANAMA S.A.UnclassifiedIPv4 IPv6397
AS10429TELEFONICA BRASIL S.AResidentialIPv4 IPv6294
AS28335MAXCOMM LTDA EPPResidentialIPv4 IPv6268
AS22706MAZA Global CarrierUnclassifiedIPv4 IPv6263
AS269196P B Net Cursos Idiomas e Internet LtdaUnclassifiedIPv4 IPv6215
AS265415WAVE PLUS INTERNET LTDA MEUnclassifiedIPv4 IPv6201

All 23 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.