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ZIP+4 and ZIP9
ZIP+4 start and end ranges
Exact match
No ambiguity with the lookup and that the given ZIP+4 code is the correct.
Carrier Route ID
Qualify for bulk mail prices by including Carrier Route IDs
Record Type
Such as PO Box, street or high rise.
Building or Firm Name
Only if provided to USPS
Government Building
Type of government building (if applicable).
Facility Code
Facility code associated with the 5-digit ZIP Code
City Delivery Indicator
Indicates whether our not the local post office has a city delivery carrier route.
Valid Delivery Area
Address exists, but not a valid mailing address.
USPS Data
Related Resources
Detailed Results Key
Download an example list of addresses with ZIP+4, carrier route IDs, and more added. See the data dictionary.
Learn morePricing
ZIP+4 data appends count as an additional lookup. Estimate your costs here.
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