結果 : what is the purpose of area codes
5:31

The Hidden Logic Behind Area Codes - Cheddar Explains

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CBS4 Indy
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Avoid calling these area codes

KPRC 2 Click2Houston
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A brief history of Colorado's many area codes

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The Future of Area Codes - Navigating the Numbers

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San Diego callers will be required to use area codes for local calls

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Why Does L.A. Have 11 Area Codes?!?

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Why does DC's 202 area code have to go away?

WUSA9
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916 Area Code Dialing Changes Going Into Effect

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How to Use Area Code Lookup Tool? | Searchbug Tutorials

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How are area codes created? Good Question.

WCCO - CBS Minnesota
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Two area codes in Minnesota required to use 10-digit dialing | FOX 9 KMSP

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Area codes explained #learneclecticthings #history

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New area code approved for Orlando area

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Avoid Theses Area Codes Linked to Scammers

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