asn.dev

Autonomous system

AS197558 MUTH Muth Citynetz Halle GmbH

Unclassified RIPE

IPv4 addresses 8.19K 9 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 2 1 downstream
Flagged prefixes 0 none

Summary

Muth Citynetz Halle

Germany · AI-generated

isp residential voip regional

MUTH is operated by Muth Citynetz Halle GmbH.

What it's used for

  • The address space carries residential broadband and VoIP services, evidenced by netnames MUTH-VOIP-NET and MUTH-VDSL-NET.
  • The AS announces 8,192 IPv4 addresses across 9 prefixes and 1 IPv6 prefix, with only 4 observed neighbours, indicating a regional access network rather than a transit provider.
  • Traffic consists of subscriber eyeballs and VoIP media/signalling for the city of Halle (Saale), as the operator is a local ISP within the Muth Group.

Notable

  • Registrants for the largest prefixes are consistently Muth Citynetz Halle GmbH, aligning with the AS holder.
  • Muth Citynetz Halle GmbH was founded in August 2016 as a company within the Muth Group.
  • The inventory includes a large /32 IPv6 block (2a00:6400::/32) alongside fragmented IPv4 space, including multiple /22 and /24 blocks.

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, 1 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS21413Envia Tel GmbH228
AS58243TELE AG173

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, 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 9 prefixes · 8.19K addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany10

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS197558
Registry name
MUTH
Registrant
MUTH-MNT
Abuse contact
amuth@citynetz-halle.de
Registered
2011-02-01
Last changed
2023-04-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
6 authorising AS197558
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
6 naming AS197558

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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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