ZIP Code Lookup
Enter a five-digit ZIP code to see which state it belongs to, its time zone and the phone area codes used there.
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The first digit of a ZIP code marks a group of states, running from 0 in the Northeast to 9 on the West Coast. The first three digits identify a regional mail-processing area. This lookup uses that three-digit prefix to find the state, so it works in your browser without sending what you type anywhere.
Military and territory ZIP codes
Prefixes 090 to 098, 340 and 962 to 966 are for military mail overseas. Puerto Rico, the US Virgin Islands and Guam have their own prefixes.