Countrycodecitycodelocalid

Countrycodecitycodelocalid is a compact, hierarchical location identifier used in information systems to reference a place or resource by concatenating three elements: a country code, a city code, and a local identifier. The country code typically follows international standards such as ISO 3166-1 (alpha-2 or numeric), while the city code is a designation assigned by national or regional authorities. The local identifier is a value unique within the city, intended to distinguish individual entities such as buildings, facilities, parcels, or assets.

The combined code may be formatted with separators or as a continuous string, for example US-NYC-000123 or 840-265-000123, though formats vary by implementation. Some systems fix the lengths of each component; others allow variable lengths and optional padding. The primary purpose is to enable unambiguous, machine-processable references that support hierarchical querying and straightforward parsing.

Applications of this scheme include telecommunications routing, postal and logistics operations, asset and facility management, urban planning, and emergency services indexing. It is typically managed by a governing body or through a consortium of authorities within a jurisdiction, to ensure consistent code assignment and to handle changes in municipal boundaries or city reloads.

Limitations include governance overhead, the need to coordinate with existing standards, potential privacy concerns, and the challenge of maintaining backward compatibility when codes change. While not a universal standard, the countrycodecitycodelocalid concept is used in various systems that require compact, navigable place identifiers.