The numerical designation 687 represents a specific geographic region within the North American Numbering Plan (NANP). This three-digit identifier is utilized by telecommunication service providers to route telephone calls to the designated area. As an example, a telephone number beginning with 687 indicates the call’s intended destination is within the geographic boundaries assigned to that code.
Its importance lies in enabling efficient and accurate call routing within the established telecommunications infrastructure. This system allows for the assignment of unique telephone numbers to individuals and businesses within the area it serves. Historically, the introduction of new codes has often signified population growth or the need to alleviate number exhaustion within existing service areas. The implementation of such a code ensures continuity of communication services and supports economic activity within the region.