ZIP Codes are delivery routes
The ZIP records use GeoNames place names and approximate coordinates. A ZIP result is not address validation, and some valid USPS ZIP Codes may be missing or represented differently.
Why ZIP Codes and ZCTAs differ
Offline-ready U.S. reference
ZIP Code & Area Code Lookup
Find a U.S. postal area or telephone region by number or city. After the first data download, searches run locally on this device.
Version 1.0.0ZIP and Area Code search with an offline-ready local reference.
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ZIP Code search
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One box, two useful references.
Look up a code you saw on an address or phone number, or start with a city and work backward.
Searches stay hereNo query is sent to HandyPebble or a third-party search service.
Works after the first downloadThe reference files are stored in this browser for offline use.
Reference, not verificationUse USPS or your phone carrier when an official answer matters.
About the data
Useful context, without pretending the boundaries are simpler than they are.
Area Codes overlap
One place can use several Area Codes, and one Area Code can cover many communities. Coverage examples come from phone-prefix geography, while assignment status comes from NANPA.
NANPA Area Code reportsNo “scam Area Code” label
Scammers can spoof the number shown on caller ID, including a familiar local Area Code. A location match does not prove that a call is safe.
FTC phone-scam guidanceData credits
ZIP place and coordinate data © GeoNames under CC BY 4.0. Area Code assignments are from NANPA public reports. Area Code city examples and time zones use Google libphonenumber metadata under Apache License 2.0.