asn.dev

Autonomous system

AS29003 REFERTELECOM-AS

Unclassified RIPE

IPv4 addresses 5.38K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PT
Exchanges 1 recorded by PCH
Upstreams 4 5 downstream
Flagged prefixes 0 none

Summary

IP Telecom

Portugal · AI-generated

isp residential business pt

REFERTELECOM-AS is operated by IP Telecom, Serviços de Telecomunicações S.A.

What it's used for

  • The address space carries residential and business internet access, evidenced by reverse DNS entries like 81-90-59-254.addr.refertelecom.pt and 222-95-185-254.addr.refertelecom.pt.
  • The AS announces 5376 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with 14 observed neighbours, indicating a role as an access provider rather than a transit hub.

Notable

  • Registrants for the two largest prefixes (81.90.48.0/20 and 185.95.220.0/22) are listed as "IP Telecom Internet and Data Department" and "IP TELECOM, SERVICOS DE TELECOMUNICACOES S.A.", aligning with the AS holder.
  • The prefix 192.162.17.0/24 is registered to "Secretaria Geral da Presidencia da Republica" with netname PRESIDENCIA-DA-REPUBLICA-DA-PORTUGESE, indicating a specific allocation for the Portuguese Presidency.
  • The inventory consists of a large /20 block, a /22 block, and a /24 block, with the latter serving a distinct government entity.

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
Gigabit Portuguese Internet Exchange PointLisbon, Portugal193.136.250.100

Transit providers

4 upstream, 5 downstream and 12 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS174Cogent Communications, LLC128
AS6939Hurricane Electric LLC67
AS12353Communicacoes Pessoais S.A.14
AS37721Virtual Technologies & Solutions3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 5.38K addresses IPv6 1 prefixes

CountryNamePrefixes
PTPortugal4

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS29003
Registry name
REFERTELECOM-AS
Registrant
IP TELECOM, SERVICOS DE TELECOMUNICACOES S.A.
Abuse contact
csirt@iptelecom.pt
Registered
2003-05-06
Last changed
2026-07-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS29003
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS29003

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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