Autonomous system
AS203993 GNA-DC1-AS S.J.M. Steffann
Unclassified RIPE Educational/Research
Summary
S.J.M. Steffann
consultancy research netherlands small
The AS handle STEFFANN-DC-AS is held by S.J.M. Steffann.
What it's used for
- The address space carries a mix of leased infrastructure and personal consultancy resources, evidenced by netnames
6CONNECT-1andNL-STEFFANN-20140417. - With 1280 IPv4 addresses and 3 IPv6 prefixes announced against 31 observed neighbours, the ratio indicates a small-scale network with moderate peering relationships rather than a large transit or access provider.
- Traffic from this AS consists of web endpoints and consultancy services associated with S.J.M. Steffann, alongside hosted services from 6connect, Inc.
Notable
- Registrants differ from the announcer; the 67.221.252.0/23 and 67.221.255.0/24 prefixes are registered to 6connect, Inc., while 185.54.92.0/23 is registered to S.J.M. Steffann.
- The address inventory is small and fragmented, consisting of two /23 blocks and one /24 block in IPv4, with three distinct IPv6 prefixes.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Speed Internet Exchange | Dronten, Netherlands | 185.1.222.243 |
Transit providers
8 upstream, 2 downstream and 18 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 2026-11-04, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 1.28K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 6 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS203993- Registry name
- GNA-DC1-AS
- Registrant
- S.J.M. Steffann
- Abuse contact
- abuse@steffann.nl
- Registered
- 2015-09-16
- Last changed
- 2026-06-12
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Global NOG Alliance
- Also known as
- GNA
- Network type
- Educational/Research
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS203993:AS-ALL- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- https://www.steffann.nl/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 8 valid, 0 with no ROA
- ROAs
- 6 authorising AS203993
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 8 naming AS203993
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: 453 networks and 1,853 prefixes, as published 2026-11-05. 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