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The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1 .
- List of North American Numbering Plan area codes - Wikipedia
The North American Numbering Plan (NANP) divides the...
- Original North American area codes - Wikipedia
The initial Nationwide Numbering Plan of 1947 established...
- North American Numbering Plan - Simple English Wikipedia, the ...
The North American Numbering Plan ( NANP) is a telephone...
- List of North American Numbering Plan area codes - Wikipedia
The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1.
The North American Numbering Plan (NANP) is an integrated telephone numbering plan serving 20 North American countries that share its resources.
The North American Numbering Plan (NANP) is an integrated telephone numbering plan serving 20 North American countries that share its resources.