The Office for Communications, the national regulatory authority for telecommunications in Liechtenstein, urgently requests the cooperation of telephone companies / regulators regarding the immediate implementation of the Liechtenstein country code 423 in their networks / country.

The country code 423 has been officially introduced on 5 April 1999. Provision must therefore be made in all countries, with immediate effect, for callers to be able to use the country code 423 followed by the subscriber number.

Correct dailing format +423 & subscriber number (no area code!)
Please find subscriber number formats in the numbering plan.

Please consult with your International Carrier(s) regarding routing traffic to Liechtenstein (using 423 Country Code).

Telecom Liechtenstein AG (www.telecom.li) is the incumbent fixed line and national carrier.

For further information regarding interconnection please contact wholesale department of Telecom Liechtenstein AG (contact details see below).

Due to the combined effects of deregulation, acquisitions, mergers, joint ventures and new entrants into the telecommunications market place it is becoming increasingly difficult to identify and contact every telephone operating company. We therefore would appreciate your support and assistance in the circulation of this information.

Please forward the information on the Liechtenstein country code 423 to your

• Subsidiaries
• Alliances
• Joint Ventures
• Other operators with whom you have interconnect agreements.

For further information please contact:

For matters of Interconnection & Commercial Agreements:

Mr. Rico Kunfermann, Unit Manager
E-mail: rico.kunfermann@telecom.li

For matters of Operation & Maintenance: