94587-3989 Zip Code
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94587-3989 Zip Code is a 'Zip Code 5 Plus 4' zip code type in the state of California, Union City City. This Zip Code is assigned to a street address number or a street address range in Union City, CA - US.
94587-3989 Area Code is 510 and Time Zone is Pacific (GMT -08:00).
Remember you have 2 kinds of blocks: even or odd. In this case, this Zip Code is assigned to Even and Odd numbers in the corresponding block(s)
94587-3989 ZIP Code 5 Plus 4
The U.S. Postal Service introduced an expanded ZIP code system in Union City named ZIP Code 5 Plus 4, often called "add-on codes" or "add ons" zip code. A ZIP Plus Four Code (ZIP+4) uses the basic Union City Zip code (94587) plus four additional digits (3989) to identify a geographic segment within the five-digit delivery area, such as a the Alvarado BLVD street 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.
The zip code 94587-3989, applies to residential houses, business, buildings, and every Union City City properties with Even and Odd numeration buildings in this range:
31750 - 31770 Alvarado BLVD, Union City, California - US