RTR is responsible for the efficient administration of communication parameters, mainly numbers. Following the link you will find an overview of numbering resources available in Austria:
For operators and providers of communication networks and services a separate page for rules of usage is available:
Consumers can find relevant information under the following link (German version only):
For the application of numbers a Web-Interface can be used as well as the application form available on the pages for each numbering range.
Used numbers service provider for value-added-services are to be announced to RTR-GmbH..
To find out which numbers are already allocated and which are still available the numbering query can be used.
RTR-GmbH is also responsible for the administration of special communications parameters. Detailed information can be found following the link:
For providers of VoIP-services as well as for the usage of geographic numbers in mobile networks and for private branch exchange systems RTR provides the following information: