Postal Code Companion
Canadian postal code, area code database tool
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Canadian postal code, area code database tool
Zip Code Companion
Zip code, area code database utility
Area Code Database (Platinum Edition)
North American area codes NPA/NXX database.
US ZIP Code Database PO Box Edition
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US ZIP Code Business Patterns Database
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United States ZIP Code Database (Gold + 3-Digit Edition)
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Area Code Lookup Tool
Area Code Lookup Tool - Area Codes Directory
Reverse Area Code Lookup
Area Code Lookup - Info On Every Area Code
