Autonomous system
AS8412 TMA Magenta Telekom
Residential RIPE
Summary
Magenta Telekom (T-Mobile Austria)
isp mobile residential legacy
Registered as T-Mobile Austria GmbH and trading as Magenta Telekom, this is Austria's converged number-two operator: mobile, cable broadband and business connectivity on a single AS. Magenta is the Deutsche Telekom group's Austrian arm, formed when T-Mobile Austria absorbed the cable operator UPC Austria.
What it's used for
- All three of the company's access businesses at once, and the reverse DNS shows each of them plainly:
- Mobile subscribers on
NNN.public.t-mobile.at. - Cable broadband on
IP-ADDR.cable.dynamic.surfer.at— thesurfer.atname is inherited from the UPC/Chello cable lineage. - Business and static assignments on
IP-ADDR.static.upcbusiness.at, plus older ranges still resolving underinode.at, an ISP the group acquired years ago.
Notable
- A large eyeball network of roughly 1.5 million IPv4 addresses, with strong IPv6 deployment alongside it.
- It is not a mobile-only AS despite the T-Mobile registry name. Mobile, fixed-cable and business address space are interleaved here, so an address in this AS can be a phone, a household or a company office. Treating the whole AS as one access type will misplace a large share of it.
- The rDNS is a fossil record of Austrian ISP consolidation:
t-mobile.at,surfer.at,upcbusiness.atandinode.atall coexist in one routing table.
Interesting
- The
TMAhandle and the Magenta brand name sit on the same object, one from the T-Mobile era and one from the rebrand, which is why datasets disagree about what to call this network.
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 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Munich | Munich, Germany | 185.1.208.132 |
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.84 |
| Budapest Internet Exchange | Budapest, Hungary | 193.188.137.88 |
Transit providers
10 upstream, 63 downstream and 93 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 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 93 prefixes · 1.55M addresses IPv6 54 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 147 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS8412- Registry name
- TMA
- Registrant
- AS8412-MNT
- Abuse contact
- abuse@magenta.at
- Registered
- 2002-08-27
- Last changed
- 2026-02-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 99.4% valid · 164 valid, 1 with no ROA
- ROAs
- 98 authorising AS8412
- ASPA
- 2 declared providers
- IRR
- 100% registered · 165 of 165 announcements
- Route objects
- 269 naming AS8412
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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