Autonomous system
AS29056 CITYCOM-AS
Unclassified RIPE NSP
Summary
Citycom
telecom business regional austria
The AS handle CITYCOM-AS is held by Citycom Telekommunikation GmbH.
What it's used for
- The address space carries static IP addresses for business and residential customers in the Graz region, evidenced by reverse DNS entries such as
static.grazkom.atandlmx.leitner-mineraloele.at. - The AS announces 33,280 IPv4 addresses across 17 prefixes and 1 IPv6 prefix, while maintaining 41 observed neighbours, indicating a role as a regional access provider with significant peering relationships.
Notable
- All registrants for the largest prefixes are consistent with the announcer, listing "Citycom Admins", "Citycom Telekommunikation GmbH", and "Citycom Telekommunikation RIPE team".
- The address inventory is finely subdivided into multiple /20 and /22 blocks, reflecting a structured internal corporate estate rather than a single large contiguous allocation.
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 3 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.197.76 |
| DE-CIX Munich | Munich, Germany | 185.1.209.2 |
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.144 |
Transit providers
6 upstream, 9 downstream and 21 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 17 prefixes · 33.28K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 18 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS29056- Registry name
- CITYCOM-AS
- Registrant
- CITYCOM-AT-MNT
- Abuse contact
- abuse@grazkom.at
- Registered
- 2003-05-21
- Last changed
- 2026-08-11
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Citycom Telekommunikation
- Network type
- NSP
- Scope
- Europe
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
RIPE::AS29056:AS-CITYCOM- Present at
- 2 exchanges
- Website
- http://www.citycom-austria.com
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
- 89% valid · 16 valid, 2 with no ROA
- ROAs
- 17 authorising AS29056
- ASPA
- no ASPA record
- IRR
- 100% registered · 18 of 18 announcements
- Route objects
- 143 naming AS29056
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