While the U.S. uses a ZIP+4 system for precision, this involves a hyphenated four-digit suffix (e.g., 12345-6789), not a standalone six-digit code. Potential Corrections
A valid five-digit code for Webster, Pennsylvania . 150898 zip
Six-digit postal codes are standard in countries like India , China , Singapore , and Canada (which uses alphanumeric formats like A1A 1A1). While the U