Phone number structure
Phone numbers are nine digits.
The first digit represents a charge indicator – ‘1’ is ‘high’, ‘3’ is ‘medium’ and ‘5’ is low. ‘9’ is designated as a ‘special’ charge indicator.
The remaining eight digits are the subscriber number.
There is no geographic placement of +979 numbers. They can be anywhere on earth.
An international freephone number may be ‘attached’ to a regular land-line (fixed line) phone, a mobile, VoIP, or a satellite phone system.
International Premium Rate numbers are intended for inbound calls only.
- ITU (International Telecommunications Union) – United Nations specialized agency for information and communications technologies
- International Telecommunications Union – DIALLING PROCEDURES (INTERNATIONAL PREFIX, NATIONAL (TRUNK) PREFIX AND NATIONAL (SIGNIFICANT) NUMBER) (IN ACCORDANCE WITH ITU-T RECOMMENDATION E.164 (11/2010)) – A A collection of dialing procedures for all countries and regions of the world. Retrieved 16 September 2016
- International Telecommunications Union – SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS Operation, numbering, routing and mobile services – International operation – Operation of international telephone services International premium rate service – Full technical description of the ITU +979 international premium rate service.
- International Telecommunications Union – UIPRN – Summary of UPRIN phone service and how to obtain them.
- Wikipedia – International Premium Rate Service – Wikipedia entry for telephone number information for International Premium Rate Services.