Observed topology

AS271145 AS271145 - PIAUI LINK S/A

Unclassified ARIN

Upstreams 2 carry this network

Downstreams 7 this network carries

Adjacent (IPv4) 8

Adjacent (IPv6) 4

Upstream graph Who carries AS271145, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS271145 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS271145: 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.

AS	Network	Type	Families	Paths seen
AS264997	Direct Telecom Ltda	Unclassified	IPv4 IPv6	66
AS264294	Ora Servicos de Telecomunicacoes Ltda	Residential	IPv4	29

Transit

Downstream networks

inferred

Networks for which AS271145 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS268441	PIAUI TRIBUNAL DE CONTAS DO ESTADO	Unclassified	IPv4 IPv6	205
AS265064	Agencia de Tecnologia da Informacao do Piaui ATI	Unclassified	IPv4	177
AS268974	LUXTELL TELECOM	Unclassified	IPv4 IPv6	96
AS265071	SECRETARIA DA FAZENDA DO ESTADO DO PIAUI	Unclassified	IPv4	59
AS266512	FUNDACAO UNIVERSIDADE ESTADUAL DO PIAUI - FUESPI	Unclassified	IPv4	59
AS275623	E P DE ARAUJO LTDA	Unclassified	IPv6	36
AS271113	CARNAUBANET LTDA	Unclassified	IPv4	4

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS271145 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS264997	Direct Telecom Ltda	Unclassified	IPv4 IPv6	528
AS268441	PIAUI TRIBUNAL DE CONTAS DO ESTADO	Unclassified	IPv4 IPv6	205
AS264294	Ora Servicos de Telecomunicacoes Ltda	Residential	IPv4	203
AS265064	Agencia de Tecnologia da Informacao do Piaui ATI	Unclassified	IPv4	177
AS268974	LUXTELL TELECOM	Unclassified	IPv4 IPv6	96
AS265071	SECRETARIA DA FAZENDA DO ESTADO DO PIAUI	Unclassified	IPv4	59
AS266512	FUNDACAO UNIVERSIDADE ESTADUAL DO PIAUI - FUESPI	Unclassified	IPv4	59
AS275623	E P DE ARAUJO LTDA	Unclassified	IPv6	36
AS271113	CARNAUBANET LTDA	Unclassified	IPv4	4

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.