Name:
ATIS 0300119(2023-09) PDF
Published Date:
09/01/2023
Status:
Active
Publisher:
The Alliance for Telecommunications Industry Solutions
This document specifies guidelines for the administration and assignment of CO Codes (NPA-NXX), and Thousands-Blocks (NPA-NXX-Xs) to Local Number Portability (LNP)-capable SPs within geographic numbering plan areas (NPAs). This does not preclude a future effort to address non-geographic NPA in the same guidelines. Throughout these guidelines the term Numbering Resources shall be used when referencing both CO Codes and Thousands-Blocks.
| File Size : | 1 file , 4.8 MB |
| Published : | 09/01/2023 |