International Telecommunications Public Correspondence Service
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International Telecommunications Public Correspondence Service (ITPCS) was an International Telecommunication Union (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 for use in a trial from 2001 to 2004 and thereafter from 2019 until 2021.[1]
See also
References
- ^ "ITU-T E.164 International Shared Country Codes". ITU. Retrieved 2023-06-06.
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