Autonomous system
AS1103 SURFNET-NL SURFnet, The Netherlands
Unclassified RIPE
Summary
SURF (SURFnet)
education research legacy
The Netherlands' national research and education network (SURFNET-NL), operated by SURF and based in Utrecht.
What it's used for
- High-capacity backbone connecting Dutch universities, colleges, research institutes, and academic hospitals to each other and to the global research internet.
Notable
- A national research and education network (NREN), not a commercial ISP. It announces a large amount of IPv4 space on behalf of the Dutch academic community.
Interesting
- SURFnet is one of the pioneering European NRENs, which is reflected in its low AS 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 5 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| LINX LON1 | London, United Kingdom | 195.66.225.122 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.208.34 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.116.243 |
| The Frys Internet Exchange | Frysian, Netherlands | 2001:7f8:10f::44f:38 |
| Asteroid Amsterdam IX | Amsterdam, Netherlands | 185.1.94.21 |
Transit providers
32 upstream, 315 downstream and 500 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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 142 prefixes · 7.19M addresses IPv6 29 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 171 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS1103- Registry name
- SURFNET-NL
- Registrant
- AS1103-MNT
- Abuse contact
- cert@surfcert.nl
- Registered
- 2002-09-23
- Last changed
- 2026-09-25
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 86% valid · 89 valid, 14 with no ROA
- ROAs
- 109 authorising AS1103
- ASPA
- no ASPA record
- IRR
- 100% registered · 103 of 103 announcements
- Route objects
- 168 naming AS1103
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: 432 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