International Telecommunications Public Correspondence Service (ITPCS) was an
International Telecommunication Union
The International Telecommunication Union (ITU)In the other common languages of the ITU:
*
* is a list of specialized agencies of the United Nations, specialized agency of the United Nations responsible for many matters related to information ...
(ITU) proposal for some form of individual-based international numbering plan that would be accessed using telephone numbers from the ''991'' range.
The
international dialling code ''991 001'' was assigned by ITU to
Neustar
Neustar, Inc. is an American technology company that provides real-time information and analytics for risk, digital performance, defense, telecommunications, entertainment, and marketing industries, and also provides clearinghouse and directory se ...
for use in a trial from 2001 to 2004 and thereafter from 2019 until 2021.
See also
*
List of country calling codes
Telephone country codes are telephone number prefixes for reaching subscribers in foreign countries or areas by international direct dialing (IDD). Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standard ...
References
International Telecommunication Union
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