ATIS - 0300119
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
active, Most Current
| Organization: | ATIS |
| Publication Date: | 1 September 2023 |
| Status: | active |
| Page Count: | 185 |
scope:
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.
Document History
0300119
September 1, 2023
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
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...
June 1, 2023
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
This document specifies guidelines for the administration and assignment of Central Office (CO) Codes (NPA-NXX) and Thousands-Blocks (NPA-NXX-Xs) to Local Number Portability (LNP)-capable Service...
March 1, 2023
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
This document specifies guidelines for the administration and assignment of Central Office (CO) Codes (NPA-NXX) and Thousands-Blocks (NPA-NXX-Xs) to Local Number Portability (LNP)-capable Service...
July 1, 2022
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
Purpose & Scope
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 SPs6...
April 1, 2022
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
Purpose & Scope
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 SPs6...
October 1, 2021
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
Purpose & Scope
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 SPs6...
July 1, 2021
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
Purpose & Scope
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 SPs6...
January 1, 2021
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
Purpose & Scope
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 SPs6...