Klagenfurt · Austria
PeeringDB records one exchange in Klagenfurt, AAIX, the Alps Adria Internet eXchange, with 22 participants, and one facility, Kelag Klagenfurt, holding 17 networks. AAIX is the city's best connected exchange by default, being its only one. An IP that geolocates to Klagenfurt tells you which operator registered the address block, not where the device is.
Internet exchanges in Klagenfurt
An exchange is a shared switch where networks hand traffic to each other directly. Participant counts come from PeeringDB, where each network maintains its own record.
| Exchange | Participants | Registry carriers peering |
|---|---|---|
AAIX Alps Adria Internet eXchange | 22 | none in the registry |
Exchange records: PeeringDB.
Colocation facilities
Buildings where networks put equipment. The network count is how many PeeringDB members list a presence there, which shows where capacity in the city sits.
| Facility | Networks present | Address |
|---|---|---|
| Kelag Klagenfurt | 17 | Arnulfplatz 2 |
What a Klagenfurt IP address tells you
Klagenfurt's routing record is compact. AAIX has 22 participants, and it is the only exchange PeeringDB lists in the city, so the exchange peer count and the AAIX participant count are the same 22. Colocation is equally concentrated. One facility, Kelag Klagenfurt, holds all 17 network presences the registry records locally, so the city's documented capacity sits in a single building. No Austrian mobile ASN appears among the AAIX participants.
An address that geolocates to Klagenfurt may belong to a device somewhere else in Austria. An operator registers an address block with one postal address on the record, and geolocation databases inherit that location for every prefix under the allocation. Mobile networks stretch the distance further, because subscriber traffic leaves through a small set of gateways rather than from the tower the handset is on. The city name in a lookup describes a registry entry.
Read the origin ASN on the specific prefix, then the netname on the block. AS8447 and AS8562 belong to A1 Telekom Austria, AS8437 and AS25255 to Drei, and AS8412 to Magenta Telekom, so a route from any of them is a mobile network address whatever city a database prints against it. A prefix announced by an AAIX participant or by a network inside Kelag Klagenfurt looks different in the registry from one a mobile operator carries.
Mobile carriers in Austria
A mobile address in Klagenfurt is routed by one of the country's operators. Each entry lists the operator's ASNs, so you can check which network an address belongs to.
Questions
Which internet exchanges are in Klagenfurt?
One. PeeringDB records AAIX, the Alps Adria Internet eXchange, with 22 participants. The registry also lists a single facility in the city, Kelag Klagenfurt, with 17 networks present, and it shows no second exchange there.
Do Austrian mobile carriers peer in Klagenfurt?
PeeringDB does not show it. The AAIX participant ASNs include none of the mobile numbers held by A1 Telekom Austria, Drei or Magenta Telekom. The registry only reports what members publish, so read this as no recorded peering rather than a proven absence.
Does an IP that geolocates to Klagenfurt mean the device is there?
No. Geolocation databases follow the location an operator publishes for its address blocks, and mobile sessions break out through a few gateways serving the whole network. A Klagenfurt result identifies the operator holding the range, not the whereabouts of the user.
Sources
- PeeringDB - exchanges, participant counts, facilities and network presence, snapshot 2026-09-07
- PROXIES.SX carrier and ASN registry - operator ASNs used to match peering participants