NPA Splits maintenance

Use this selection when you want to manage an NPA split in advance of a Permissive Dialing Period.

NPA Split refers to the telephone-numbering scheme that subdivides an old area code (old NPA) by the creation of a new area code (new NPA). This is necessary when the number of telephones in an old area code (old NPA) grows to an excessive number. As new area codes are defined (new NPA), some existing exchanges (NXX) may be assigned to the new area code (new NPA) from the old area code (old NPA).

The split is in the Pending state until it becomes Active on the Start date of the PDP. While in the Active state, Dialed Numbers (DN) in the split's NXX can use either the old NPA or the new NPA. After the split becomes complete on the End date of the PDP, only the new NPA can be used in a DN.

To manage NPA splits through the GUI, you must have group permission access to NPA Splits and NPA Split Maintenance.