Autonomous system
AS2860 NOS_COMUNICACOES
Residential RIPE
Summary
NOS (Portugal)
isp residential eyeball cable fiber
NOS Comunicações (NOS) — one of Portugal's largest residential operators, formed from the 2013 merger of ZON and Optimus.
What it's used for
- Cable and fibre home internet, plus pay-TV and mobile, for consumers across Portugal.
Notable
- A large Portuguese "eyeball" network: addresses here are home connections, not servers, and are often behind carrier-grade NAT.
- Competes with MEO (Altice) and Vodafone as one of the top consumer broadband providers in the country.
Interesting
- The "ZON" heritage comes from the cable-TV business spun out of Portugal Telecom; the Optimus merger added a mobile arm to create a full quad-play operator.
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
Internet exchanges
Recorded at 6 exchanges in 4 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| LINX LON1 | London, United Kingdom | 195.66.225.150 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.210.103 |
| DE-CIX Madrid | Madrid, Spain | 185.1.192.239 |
| ESpanix Madrid Lower LAN | Madrid, Spain | 193.149.1.111 |
| DE-CIX Lisbon | Lisbon, Portugal | 185.1.131.56 |
| Gigabit Portuguese Internet Exchange Point | Lisbon, Portugal | 193.136.250.40 |
Transit providers
8 upstream, 48 downstream and 75 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 55 prefixes · 1.77M addresses IPv6 21 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PT | Portugal | 76 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS2860- Registry name
- NOS_COMUNICACOES
- Registrant
- AS2860-MNT
- Abuse contact
- abuse@nos.pt
- Registered
- 2002-09-25
- Last changed
- 2026-03-02
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 96% valid · 137 valid, 6 with no ROA
- ROAs
- 155 authorising AS2860
- ASPA
- no ASPA record
- IRR
- 99.3% registered · 142 of 143 announcements
- Route objects
- 222 naming AS2860
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 1,771 prefixes, as published 2026-10-15. 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