asn.dev

Autonomous system

AS61591 WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME

Residential LACNIC

IPv4 addresses 3.07K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 1 recorded by PCH
Upstreams 6 8 downstream
Flagged prefixes 0 none

Summary

Westlink Tecnologia e Comunicação

Brazil · AI-generated

isp residential cable dsl

WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME is the AS handle for Westlink Tecnologia e Comunicação.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries such as 45-237-73-0.westlink.net.br and 170-247-41-0.westlink.net.br.
  • The AS announces 3072 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 37 observed neighbours, a ratio consistent with a regional access provider rather than a transit carrier.
  • Traffic from this AS consists of subscriber eyeballs and fixed-line endpoints, as the operator is registered as a provider of access to communication networks in Maricá, RJ.

Notable

  • All registrants for the announced prefixes (45.237.72.0/22, 138.97.64.0/22, 170.247.40.0/22) match the AS holder, Westlink Tecnologia e Comunicação Ltda. - ME.
  • The address inventory is composed of three /22 blocks and a single /32 IPv6 prefix, all located in Brazil.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.222.68

Transit providers

6 upstream, 8 downstream and 26 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC443
AS6939Hurricane Electric LLC147
AS272713CDN Star Ltda16
AS24482SG.GS12
AS37721Virtual Technologies & Solutions12
AS35280F5 Networks SARL2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 3 prefixes · 3.07K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil4

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
61591
Registry name
ASN61591
Registrant
WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME
Abuse contact
rogerioveloso@westlink.com.br
Registered
2018-04-02
Last changed
2018-04-02
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 28 valid, 0 with no ROA
ROAs
10 authorising AS61591
ASPA
no ASPA record
IRR
100% registered · 28 of 28 announcements
Route objects
28 naming AS61591

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-17. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check