: Codes beginning with 001 were designed to help sort mail destined for international locations, ensuring that a letter from Chicago to Alberta or the Netherlands Antilles follows the correct logistical path.
codes (without the leading double zeros) cover a large portion of Northern New York , including Plattsburgh and Lake Placid. 00129zip
: While most military mail (APO/FPO) uses distinct prefixes, the 00xxx range is sometimes reserved for unique diplomatic pouches or high-security government shipments that bypass standard residential sorting facilities. Geography and the "00" Prefix : Codes beginning with 001 were designed to
In the domestic U.S. system, the first digit of a zip code represents a broad geographic area. The "0" prefix generally covers the Northeast. For example: serves Essex, Massachusetts. 00129zip