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 Desktop Reference & Libraries | Area Codes |
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| Area Codes (10) |
Area Codes: Frequently Asked Questions and Fact Sheet
From the FCC
Baja Quest
Area codes numbers for the Baja California Peninsula
Fone Finder
Search for USA/Canadian telephone numbers.
Jay Computer Services
Zip and area code lookup sources.
North American Numbering Plan Adminstration
Provides information about the North American Numbering Plan (NANP) and its administration. The NANP is the numbering plan for the Public Switched Telephone Network in the United States and its territories. Cool area code map.
PROdial
Telephone area codes in numerical order with U.S. and Canadian area codes in numerical order