Autonomous system
AS34347 CITYNET-AT-AS
Residential APNIC Cable/DSL/ISP
Summary
Citynet
cable dsl isp residential
The AS handle CITYNET-AT-AS is held by HALLAG Kommunal GmbH.
What it's used for
- The address space carries residential broadband access, evidenced by the reverse DNS record
cn18535182254.surfer.citynet.atand netnames such asCitynet-Network4andCNH-PI. - The AS announces 12,288 IPv4 addresses across 8 prefixes and 1 IPv6 prefix, while maintaining 178 observed neighbours. This high neighbour count relative to the address inventory indicates a regional access provider rather than a transit carrier.
Notable
- All registrants in the evidence pack are consistent with the announcer, listing HALLAG Kommunal GmbH for every prefix, including
AT-CNH-20050623andAT-CNH-20190124. - HALLAG Kommunal GmbH is a subsidiary of HALL AG, a major Austrian utility and infrastructure company based in Hall in Tyrol.
- The inventory consists of eight IPv4 blocks ranging from /20 to /23 sizes, alongside a single /32 IPv6 prefix, reflecting a segmented regional footprint.
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 8 exchanges in 7 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.101 |
| LINX LON1 | London, United Kingdom | 195.66.228.102 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.213.243 |
| Milan Internet Exchange | Milan, Italy | 217.29.66.215 |
| SwissIX | Zurich, Switzerland | 91.206.52.237 |
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.124 |
| Rheintal Internet Exchange | Eschen, Liechtenstein | 91.232.229.9 |
| Tirol-IX | Innsbruck, Austria | 185.1.31.1 |
Transit providers
33 upstream, 13 downstream and 73 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 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 12.29K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 9 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS34347- Registry name
- CITYNET-AT-AS
- Registrant
- CNH-MNT
- Abuse contact
- abuse@citynet.at
- Registered
- 2004-12-22
- Last changed
- 2026-07-20
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Citynet AT
- Also known as
- Citynet
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
RIPE::AS-CNHAT RIPE::AS-CNHAT-V6- Present at
- 9 exchanges
- Facilities
- 10 facilities
- Website
- https://www.citynet.at
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 · 9 valid, 0 with no ROA
- ROAs
- 9 authorising AS34347
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 9 naming AS34347
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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