Observed topology

AS27712 AS27712 - Paulo Dias de Araujo Filho

Unclassified LACNIC

Upstreams 14 carry this network

Downstreams 2 this network carries

Adjacent (IPv4) 15

Adjacent (IPv6) 3

Upstream graph Who carries AS27712, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS27712 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

Networks observed carrying traffic for AS27712: 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
AS61923	SUNWAY TELECOM LTDA	Residential	IPv4	183
AS263484	J E Provedor de Rede de Comunicacao Ltda	Residential	IPv4	183
AS272277	Dupla - Net	Unclassified	IPv4	123
AS270735	COMPUTIZE NETWORK TELECOMUNICACOES LTDA	Hosting	IPv4	63
AS135377	UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED	Unclassified	IPv4	60
AS262444	XTURBO PROVEDOR DE INTERNET LTDA	Residential	IPv4	59
AS266181	GOLDEN LINK	Residential	IPv4	59
AS267416	PIENSCO MANUTENCAO E PROJETOS LTDA	Unclassified	IPv4	59
AS269194	ST1 INTERNET	Residential	IPv4	59
AS23106	AMERICAN TOWER DO BRASIL-COMUNICACAO MULTIMIDIA LT	Unclassified	IPv4	38

All 14 upstreams →

Transit

Downstream networks

inferred

Networks for which AS27712 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS271413	E O L CASTRO TELECOMUNICACOES EIRELI	Unclassified	IPv4	63
AS272218	Luiz Henrique Rocha Maciel	Unclassified	IPv6	34

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS27712 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS61923	SUNWAY TELECOM LTDA	Residential	IPv4	183
AS263484	J E Provedor de Rede de Comunicacao Ltda	Residential	IPv4	183
AS272277	Dupla - Net	Unclassified	IPv4	123
AS23106	AMERICAN TOWER DO BRASIL-COMUNICACAO MULTIMIDIA LT	Unclassified	IPv4	76
AS269194	ST1 INTERNET	Residential	IPv4 IPv6	75
AS270735	COMPUTIZE NETWORK TELECOMUNICACOES LTDA	Hosting	IPv4	63
AS271413	E O L CASTRO TELECOMUNICACOES EIRELI	Unclassified	IPv4	63
AS135377	UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED	Unclassified	IPv4	60
AS262444	XTURBO PROVEDOR DE INTERNET LTDA	Residential	IPv4	59
AS266181	GOLDEN LINK	Residential	IPv4	59

All 16 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-03 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.45M 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.