asn.dev

Autonomous system

AS3243 MEO-RESIDENCIAL

Residential RIPE

IPv4 addresses 1.84M 17 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PT
Exchanges 0 recorded by PCH
Upstreams 1 9 downstream
Flagged prefixes 0 none

Summary

MEO / Altice Portugal

Portugal · AI-generated

isp residential eyeball dsl fiber backbone

MEO - Serviços de Comunicações e Multimédia (MEO) — Portugal's incumbent telecom, the former Portugal Telecom, now owned by Altice.

What it's used for

  • Fibre and DSL home broadband, pay-TV and mobile, plus the national backbone, across Portugal.

Notable

  • A large Portuguese "eyeball" network of consumer end users, not servers.
  • The historic incumbent and one of the top residential broadband providers, competing with NOS and Vodafone.

Interesting

  • The MEO brand consolidated Portugal Telecom's fixed and mobile retail offerings; the Altice acquisition folded it into the wider Altice group.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 9 downstream and 12 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8657SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.984

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, 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 17 prefixes · 1.84M addresses IPv6 1 prefixes

CountryNamePrefixes
PTPortugal18

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS3243
Registry name
MEO-RESIDENCIAL
Registrant
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Abuse contact
abuse.lir@meo.pt
Registered
2002-09-11
Last changed
2026-02-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 17 valid, 0 with no ROA
ROAs
18 authorising AS3243
ASPA
no ASPA record
IRR
100% registered · 17 of 17 announcements
Route objects
17 naming AS3243

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 1,779 prefixes, as published 2026-10-23. 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