asn.dev

Autonomous system

AS8956 Flens-net Stadt Flensburg

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Stadt Flensburg

Germany · AI-generated

government municipal legacy

Registered as Flens-net with the RIR remark "germany", this AS belongs to Stadt Flensburg — the city administration of Flensburg, on Germany's Baltic coast at the Danish border. The contacts sit at Rathausplatz 1, the city hall.

What it's used for

  • The municipal government's own network. It announces a single provider-independent /24, netname FLENSBURG, plus one IPv6 /48 — 256 IPv4 addresses in total, with two BGP neighbours and no downstream customers.
  • No rDNS is delegated on the sampled space, which is normal for a small council block that fronts a handful of services and keeps the rest internal.

Notable

  • This is a local government network, not an ISP and not an enterprise. Provider-independent space plus a low-numbered AS is a common shape for German municipalities, which took address space early and have kept it multi-homed ever since.
  • The address space belongs to the city administration and should be attributed to it, not to whichever regional carrier happens to be upstream on any given day. That independence from a single carrier is the whole reason a council of this size runs its own AS.

Interesting

  • The registry "name" here is a good illustration of how little the handle carries: Flens-net plus a bare germany remark is all the object says about itself. The identity comes from the organisation record and the city-hall street address, not the name.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3331OpenXS GmbH59
AS56737Stadtwerke Flensburg GmbH30

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-10, 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 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS8956
Registry name
Flens-net
Registrant
FLENS-MNT
Abuse contact
abuse@flensburg.de
Registered
2001-11-28
Last changed
2018-10-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS8956
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS8956

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: 454 networks and 1,847 prefixes, as published 2026-11-11. 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