NPA/NXX. The NPA followed by the NXX (i.e.the first six digits of a ten-digit telephone number).
NPA/NXX. 4.1 Each NPA-NXX associated with a Trunk Group using a Type 2A interface must have a single Rating Point and that Rating Point must be associated with a Telco End Office Switch homing on the Telco Tandem Switch where the Trunk Group is located, provided however, that the Rating Point may be designated anywhere in the LATA when the Commission so rules in a proceeding binding Telco. The Rating Point does not have to be the same as the Routing Point.
NPA/NXX. 5.1 Each Carrier NPA-NXX must have a single Rating Point and that Rating Point must be associated with a Rate Center defined in the applicable AT&T-22STATE landline state tariff. Carrier must have the Rating Point entered into the LERG. The geographical exchange area of the associated Rate Center must be served by an End Office Switch or other End Office Switches sub-tending the AT&T-22STATE Tandem Office Switch where a Type 2A Trunk Group is located, or at the End Office Switch, where a Type 2B or Type 1 Trunk Group is located. The Rating Point may be designated anywhere in the LATA, when the Commission so rules, in a proceeding binding AT&T-22STATE. The Rating Point does not have to be the same as the Routing Point.
NPA/NXX. 5.1 Each NPA-NXX associated with a Trunk Group using a Type 2A Interconnection Trunk Group must be associated with a SBC-13STATE Tandem. Carrier will home its NPA-NXXs to the Tandem that serves the geographic area for the V&H Coordinate assigned to the NXX.
NPA/NXX. 4.1. Each NPA-NXX associated with a Trunk Group using a Type 2A interface must have a single Rating Point and that Rating Point must be associated with a Telco End Office Switch homing on the Telco Tandem Switch where the Trunk Group is located. When carrier elects to establish and maintain direct trunking between all Carrier switches that have codes that home in a LATA and each of Telco’s access tandems in that LATA, and when all NPA-NXX codes reside in the carrier’s switch, the single Rating Point for any NXX may be at any end office in the LATA regardless of the Routing Point for the code. The Routing Point and Rating Point must be in the same LATA.
NPA/NXX. 6.1 Each NPA-NXX associated with an Authorized Services Interconnection Trunk Group using a Type 2A interface must have a single Rating Point and that Rating Point must be associated with a Telco End Office Switch homing on the Telco Tandem Switch where the Authorized Services Interconnection Trunk Group is located. The Rating Point does not have to be the same as the Routing Point.
