Tools
All tools are free. Address verification uses a small daily limit; everything else runs in your browser.
Address
Address Verification & ZIP+4Check a US address and get its full 9-digit ZIP+4 code.Address Formatter (USPS style)Format an address in USPS style with standard abbreviations.Mailing Label MakerTurn a list of addresses into printable labels.
ZIP
ZIP Code LookupFind the city, county, time zone and area codes for any ZIP.ZIP to CityTurn a ZIP code into its city and state.City to ZIPList the ZIP codes for a US city.ZIP Code DistanceStraight-line miles and km between two ZIP codes.ZIP Code RadiusAll ZIP codes within a radius of a ZIP.Time Zone by ZIPTime zone and current local time for a ZIP code.ZIP Code ValidatorCheck that a ZIP or ZIP+4 is well formed and exists.Bulk ZIP Lookup (CSV)Add city, state and time zone to a CSV of ZIPs, in your browser.
Phone
Area Code LookupWhere is an area code? Location, time zone and overlays.Area Code by CityFind the area code for a US city.Phone Number Area Code LookupPaste a phone number to see its area code and local time.