Autonomous system
AS3333 RIPE-NCC-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC
Unclassified RIPE
Summary
RIPE NCC
research legacy
RIPE-NCC-AS is the network of the RIPE NCC in Amsterdam, the Regional Internet Registry for Europe, the Middle East and parts of Central Asia — the body that allocates the IP addresses and AS numbers used across its region.
What it's used for
- Hosting the RIPE NCC's own services: the RIPE Database and whois, the registry's web presence, RPKI infrastructure, and the systems members use to manage their allocations.
- Measurement and research infrastructure, including the route collectors and probe systems the NCC runs to observe the global routing system.
Notable
- One of the most recognisable AS numbers in the world, largely by accident: its memorable digits made it the standard example in BGP documentation, tutorials and lab exercises for decades.
- The registry does not sell transit or hosting — this is an institutional network whose job is to keep the registry itself reachable.
Interesting
- Because so much teaching material uses AS3333 as the stand-in for "some AS", it turns up in misconfigured lab gear and copy-pasted configs leaking into the real internet more often than any other number.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.208.68 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.117.25 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 4.61K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 7 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS3333- Registry name
- RIPE-NCC-AS
- Registrant
- Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
- Abuse contact
- abuse@ripe.net
- Registered
- 2002-08-13
- Last changed
- 2026-03-19
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 80% valid · 8 valid, 0 with no ROA 2 RPKI-invalid
- ROAs
- 13 authorising AS3333
- ASPA
- no ASPA record
- IRR
- 90% registered · 9 of 10 announcements
- Route objects
- 8 naming AS3333
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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