Why Is the USA Country Code 1? Explanation of NANP and Calling Codes

Discover why the USA has country code 1, assigned during the 1947 North American Numbering Plan establishment.

406 views

USA has the country code 1 because it was designated during the establishment of the North American Numbering Plan (NANP) in 1947. The NANP gave priority to the US and Canada due to their significant telecommunications infrastructure.

FAQs & Answers

  1. What is the North American Numbering Plan (NANP)? The NANP is a telephone numbering system established in 1947 to simplify and standardize dialing across the US, Canada, and other participating countries using country code 1.
  2. Why was country code 1 assigned to the USA? Country code 1 was assigned to the USA because, during the creation of the NANP in 1947, the US and Canada were given priority due to their large telecommunications infrastructure.
  3. Is Canada included in country code 1? Yes, Canada shares country code 1 with the USA as both countries are part of the North American Numbering Plan.