Patent · US Expired

Method and system for providing local telephone number portability using geographic unit building blocks

US6078657A · kind A · utility

37Cited by
16References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 30, 1997
Grant dateJun 20, 2000
Priority date—
Expiry dateMay 30, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04Q3/005
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A method and system for providing local number portability using a concept known as Geographic Unit Building Blocks (GUBB). Service providers (carriers) accept and use a map that divides a geographic area, such as a State, into sub-area GUBBs. The carriers operating within the State jurisdiction would then assign GUBBs to the telephone numbers they serve which accurately reflect each telephone number's geographic location on the State map. All ported numbers will have an explicit GUBB assignment as part of the location routing number (LRN) which would then be stored in the Local Number Portability (LNP) database used to provide translations for routing the call.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.