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United
States +1
Phone Number Format
- Area Code: 3
digits
- Subscriber Number:
7 digits
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Area Code List
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Additional
Information
- North American Numbering Plan (+1)
- Overview
- North American Numbering Plan (NANP) is the formal name for the
telephone numbering system used in country code (world zone) 1.
The NANP countries and territories are: Anguilla, Antigua and Barbuda,
Bahamas, Barbados, Bermuda, British Virgin Islands, Canada, Cayman
Islands, Dominica, Dominican Republic, Grenada and Carricou, Guam,
Jamaica, Montserrat, (Commonwealth of the) Northern Mariana Islands,
Puerto Rico, St Kitts and Nevis, St Lucia, St Vincent and Grenadines,
Trinidad and Tobago, Turks and Caicos, U.S. Virgin Islands, United
States.
- The term NPA or Numbering Plan Area, means the three-digit area
code used in the NANP.
- Number Format
- (NXX) NXX XXXX - fixed-length 10-digit national numbers: 3-digit
area codes followed by 7-digit local numbers.
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