asn.dev

Observed topology

AS28201 AS28201 - Companhia Itabirana Telecomunicacoes Ltda

Residential ARIN

Upstreams 7 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 22
Adjacent (IPv6) 16
Upstream graph Who carries AS28201, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS28201 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS28201: 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
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.UnclassifiedIPv4 IPv68,770
AS3356Level 3 Parent, LLCTransitIPv4 IPv64,350
AS13786Seabras 1 USA, LLCUnclassifiedIPv4 IPv6745
AS24482SG.GSHostingIPv4 IPv6237
AS10429TELEFONICA BRASIL S.AResidentialIPv43
AS35280F5 Networks SARLHostingIPv41
AS37721Virtual Technologies & SolutionsResidentialIPv41

Transit

Downstream networks

All 16

Networks for which AS28201 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS262669Companhia Itabirana Telecomunicacoes LtdaUnclassifiedIPv4 IPv62,973
AS270683RFF Telecomunicacoes e Consultoria LTDAUnclassifiedIPv4 IPv6548
AS10670COMPANHIA DE TECNOLOGIA DA INFORMACAO ESTADO MGUnclassifiedIPv4 IPv6254
AS266149BDC TELECOMUnclassifiedIPv4 IPv6221
AS265448NETWORK INFORMATICA LTDA. - MEUnclassifiedIPv4 IPv6219
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv693
AS268314EWERTON DA SILVA LOPES TELECOMUNICACOESUnclassifiedIPv4 IPv692
AS263261TRIBUNAL REGIONAL DO TRABALHO DA 3A REGIAOUnclassifiedIPv4 IPv691
AS269306ULTRANET SERVICOS DE COMUNICACAOUnclassifiedIPv4 IPv667
AS52608ASSEMBLEIA LEGISLATIVA DE MINAS GERAISUnclassifiedIPv4 IPv663

All 16 downstreams →

Adjacency

Adjacent networks

All 23

Every AS seen directly next to AS28201 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.UnclassifiedIPv4 IPv611,550
AS3356Level 3 Parent, LLCTransitIPv4 IPv66,035
AS262669Companhia Itabirana Telecomunicacoes LtdaUnclassifiedIPv4 IPv62,973
AS13786Seabras 1 USA, LLCUnclassifiedIPv4 IPv61,165
AS270683RFF Telecomunicacoes e Consultoria LTDAUnclassifiedIPv4 IPv6548
AS24482SG.GSHostingIPv4 IPv6324
AS265448NETWORK INFORMATICA LTDA. - MEUnclassifiedIPv4 IPv6319
AS10670COMPANHIA DE TECNOLOGIA DA INFORMACAO ESTADO MGUnclassifiedIPv4 IPv6254
AS266149BDC TELECOMUnclassifiedIPv4 IPv6221
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv693

All 23 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.