Alto NM ZIP Code
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Alto city is located in New Mexico State, Lincoln County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Alto NM zip code by its streets and block numbers if we have some of the Alto streets loaded in our website
Alto Area Code is 575 and Time Zone is Mountain (GMT -07:00).
Alto Zip Code - New Mexico
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Alto City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Alto ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Alto, New Mexico.
The Alto Zip Code is 88312.
If you want to send a mail to Alto City, you should use the 88312 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Alto 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 88312 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Alto 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 New Mexico.