Autonomous system
AS8447 A1TELEKOM-AT A1 Telekom Austria AG
Residential RIPE
Summary
A1 Telekom Austria
isp residential eyeball dsl fiber backbone
A1 Telekom Austria (AT-AON) is Austria's incumbent telecommunications operator and the largest fixed-line broadband provider in the country, part of the A1 Telekom Austria Group.
What it's used for
- Residential fixed broadband (DSL, fibre and cable/coax) plus fixed-line voice for homes and businesses across Austria.
- Carries the national backbone that the group's fixed and mobile services ride on.
Notable
- A large "eyeball" network: most addresses here are home internet connections, not servers.
- The former state PTT and still the dominant fixed-line incumbent; A1 also runs a major mobile network, though that is largely numbered in separate ranges.
Interesting
- The "aon" handle is a legacy of Telekom Austria's original consumer internet brand from the dial-up and early DSL era.
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 6 exchanges in 6 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.192.69 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.209.207 |
| Peering.cz | Prague, Czech Republic | 185.0.20.59 |
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.11 |
| Budapest Internet Exchange | Budapest, Hungary | 193.188.137.44 |
| Serbian Open Exchange | Belgrade, Serbia | 185.1.27.4 |
Transit providers
34 upstream, 208 downstream and 413 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 265 prefixes · 2.74M addresses IPv6 13 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 278 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS8447- Registry name
- A1TELEKOM-AT
- Registrant
- AS8447-MNT
- Abuse contact
- abuse@a1.at
- Registered
- 2002-09-20
- Last changed
- 2026-09-25
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 74% valid · 99 valid, 35 with no ROA
- ROAs
- 102 authorising AS8447
- ASPA
- no ASPA record
- IRR
- 100% registered · 134 of 134 announcements
- Route objects
- 150 naming AS8447
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: 431 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