21046-1004 Zip Code


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21046-1004 Zip Code is a 'Zip Code 5 Plus 4' zip code type in the state of Maryland, Columbia City. This Zip Code is assigned to a street address number or a street address range in Columbia, MD - US.

21046-1004 Area Code is 443/410/240/301/667 and Time Zone is Eastern (GMT -05:00).

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)



21046-1004 ZIP Code 5 Plus 4

The U.S. Postal Service introduced an expanded ZIP code system in Columbia 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 Columbia Zip code (21046) plus four additional digits (1004) to identify a geographic segment within the five-digit delivery area, such as a the Allview DR 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 Maryland.



The zip code 21046-1004, applies to residential houses, business, buildings, and every Columbia City properties with Even and Odd numeration buildings in this range:

6500 - 6528 Allview DR, Columbia, Maryland - US


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21046-1004 Zip Code 5 Plus 4 Highlights

21046-1004 Zip Code Info
City: Columbia
County: Howard
State: Maryland (MD)
City Zip Code: 21046
Plus 4 Code: 1004
Street: Allview DR
Block Range: 6500 - 6528
Numeration Type: Even and Odd
21046-1004 Area Code: 443/410/240/301/667
21046-1004 Time Zone: Eastern (GMT -05:00)