asn.dev

Observed topology

AS267121 ATPlus Telecom

Residential RIPE Cable/DSL/ISP

Upstreams 7 carry this network
Downstreams 9 this network carries
Adjacent (IPv4) 16
Adjacent (IPv6) 8
Upstream graph Who carries AS267121, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS267121 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS267121: 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
AS53062GGNET TELECOMUNICACOES LTDAUnclassifiedIPv4 IPv6630
AS3356Level 3 Parent, LLCTransitIPv4629
AS6939Hurricane Electric LLCTransitIPv4 IPv6195
AS33182HostDime.com, Inc.HostingIPv464
AS14840BR.Digital TelecomUnclassifiedIPv456
AS24482SG.GSHostingIPv4 IPv620
AS263998Machado & Mascarelo Sonorizacao LtdaUnclassifiedIPv4 IPv68

Transit

Downstream networks

inferred

Networks for which AS267121 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS264194NDD Tech LTDAUnclassifiedIPv4305
AS263014ATP DATAUnclassifiedIPv4 IPv6277
AS265005IPWORKS SISTEMAS LTDA MEUnclassifiedIPv4180
AS264263STARTEC PROVEDOR DE INTERNET LTDAUnclassifiedIPv4122
AS274504CUNHA INSTALACOES TELEFONICAS LTDA MEUnclassifiedIPv4 IPv695
AS263018Zapelini & Cia. Ltda.UnclassifiedIPv461
AS265898NETVIS TELECOMUnclassifiedIPv461
AS61821Sincroniza Digital LTDAUnclassifiedIPv4 IPv653
AS274569ASK CorpUnclassifiedIPv632

Adjacency

Adjacent networks

All 17

Every AS seen directly next to AS267121 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS53062GGNET TELECOMUNICACOES LTDAUnclassifiedIPv4 IPv61,116
AS3356Level 3 Parent, LLCTransitIPv41,037
AS6939Hurricane Electric LLCTransitIPv4 IPv6412
AS264194NDD Tech LTDAUnclassifiedIPv4305
AS263014ATP DATAUnclassifiedIPv4 IPv6277
AS265005IPWORKS SISTEMAS LTDA MEUnclassifiedIPv4180
AS264263STARTEC PROVEDOR DE INTERNET LTDAUnclassifiedIPv4122
AS274504CUNHA INSTALACOES TELEFONICAS LTDA MEUnclassifiedIPv4 IPv695
AS33182HostDime.com, Inc.HostingIPv464
AS263018Zapelini & Cia. Ltda.UnclassifiedIPv461

All 17 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.