List of country calling codes - Wikipedia
Telephone exchange names - Wikipedia
List of country calling codes - Wikipedia
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Area code 218 - Wikipedia
I got a text from +254 wanted to see what country it's from and i got an area code from texas : r/USdefaultism
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File:USA telephone area code map - West Virginia.svg - Wikipedia
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Area code 434 - Wikipedia
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data request - US phone area code city/state database? - Open Data Stack Exchange
Area codes 910 and 472 - Wikipedia
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How to Call the USA (with Pictures) - wikiHow
Telephone Numbers in Cambodia - Wikipedia | PDF | Encodings | Mathematical Notation
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Area Codes - Twin Cities - LocalWiki
