Guasti CA ZIP Code
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Guasti city is located in California State, San Bernardino County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Guasti CA zip code by its streets and block numbers if we have some of the Guasti streets loaded in our website
Guasti Area Code is 909/951 and Time Zone is Pacific (GMT -08:00).
Guasti Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Guasti City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Guasti ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Guasti, California.
The Guasti Zip Code is 91743.
If you want to send a mail to Guasti City, you should use the 91743 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Guasti ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 91743 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Guasti city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in California.