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The most complete ZIP Code is a nine-digit number consisting of five digits, a hyphen, and four digits, which the USPS describes by its trademark ZIP+4. The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits.

Valid US ZIP code pattern US ZIP code (U.S. postal code) allow both the five-digit and nine-digit (called ZIP + 4) formats. E.g. a valid postal code should match 12345 and 12345-6789, but not 1234, 123456, 123456789, or 1234-56789. ^ # Assert position at the beginning of the string.

Why did your customer receive this error? This error occurs when there is an attempted transaction where the billing zip code provided does not match the zip code on file with the purchaser's bank. This response is received directly from the issuing bank.

ZIP+4 Codes (ZIP Plus 4 Codes) are 4-digit codes added to 5-digit USPS ZIP Codes. The first five digits indicate the national area and destination post office / delivery area. The last 4 digits represent specific routes within delivery areas. 9-digit ZIP+4 Codes aid in routing and delivery efficiency.

Canadian ZIP codes use an alphanumerical format with six characters in the format A1A 1A1 with the first character denoting the province of the address. The second character is a district within that province. The third character is a letter representing the postal zone of the province.

The current postal code (postal codes) range of the United States (US) is: 00001 99950. The lowest postal code area is 00001.

USPS.com. To find a zip code with USPS.com, you need to fill in the fields with your USA street address, city, and state. Then click Find and you'll get your postal code.