156141 Zip Instant

Added in 1983, these extra four digits pinpoint a specific street segment, floor, or building. How to Verify a Correct ZIP Code

ZIP (Zone Improvement Plan) codes were introduced in 1963 to speed up mail processing. Represents a group of U.S. states. 156141 zip

Narrow down to specific post offices or delivery areas. Added in 1983, these extra four digits pinpoint

Identify the central mail processing facility. Added in 1983

: Search by city/state or full street address.