asn.dev

Autonomous system

AS209846 SWPFORZHEIM

Unclassified RIPE

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 1 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

SWP Stadtwerke Pforzheim

Germany · AI-generated

utility municipal energy germany

SWPFORZHEIM is operated by SWP Stadtwerke Pforzheim GmbH & Co. KG.

What it's used for

  • The address space carries municipal utility infrastructure, evidenced by the netname DE-SWPSTADTWERKE-20171024 registered to SWP Stadtwerke Pforzheim GmbH & Co. KG.
  • The AS announces 1280 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with 6 observed neighbours, indicating a small-scale internal corporate network rather than a transit or large access provider.
  • Traffic from this AS consists of internal corporate systems for a municipal energy provider managing heat, electricity, and water services in Pforzheim.

Notable

  • Registrants for the largest prefixes include SWP Stadtwerke Pforzheim GmbH & Co. KG for 185.227.156.0/22 and abtis GmbH for 192.16.137.0/24, suggesting a mix of owned and potentially leased or partner-managed address space.
  • The address inventory is compact, consisting of a /22 and a /24 in IPv4 and a single /32 in IPv6, typical of a localized municipal utility estate.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Stuttgarter Internet ExchangeStuttgart, Germany193.138.31.10

Transit providers

4 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS39257LUMi GmbH202
AS197637ropa GmbH112
AS12502Dr.-Ing. Nepustil & Co. GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikationstechnik14
AS5405Inter.link GmbH1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 2 prefixes · 1.28K addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS209846
Registry name
swpforzheim
Registrant
de-swpstadtwerke-1-mnt
Abuse contact
abuse.glasfaser@stadtwerke-pforzheim.de
Registered
2018-11-22
Last changed
2024-05-24
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
6 authorising AS209846
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
8 naming AS209846

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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