Address and Phone Numbers
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- Time and Date
- International dialing codes for almost any country and area codes for many cities. The interface includes a dropdown selector and local times are provided with dialing codes.
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- UK Phone Information
- Returns area information, map, BT charge information, and nearby exchange names for telephone numbers, access/short codes, or the name of a location.
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- US Area Code Locations
- Provides a list of towns and cities covered by each US area code including overlays and splits.
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- World Search Dial Codes
- Contains world telephone codes and time zone information. Search by city, country or number.
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- World Telephone Numbering Guide
- Lists and links to current international dialing codes and area codes with formatting guides and provides information on recent and historical changes.
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- DirectMailQuotes LLC
- Zip code directory lookup as well as postal rates, regulations, glossary of mailing terms.
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- Free ZIP Code Lookup
- Free zipcode lookup with areacode, county, latitude, longitude, MSA, PMSA, congressional district, FIPS code, and timezone. Updated monthly.
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- German Postal Code Lookup
- Look up postal codes, the German equivalent of U.S. zip codes, for any German address.
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- International Mailing Address Formats
- Includes format information and/or examples for many countries, and links to additional references.
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- Links to Post Office Pages
- Links and resources for postal code and international address and address format data.
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- The National Address Server
- Translates valid U.S. postal addresses to the proper format along with the ZIP+4 code.