C540:2007 Local Number Portability
C540:2007 (pdf 628kb)
The Local Number Portability Industry Code specifies operational processes between customers and Access Service Deliverers (ASDs) and between ASDs for local number portability. It defines the processes for porting of numbers, any restrictions that apply to ported numbers and processes for moving a ported number.
Revision of the Code
The Code was revised in 2007 to:
- allow ULL Call diversion and Cat. D Porting of Telephone Numbers where the Access Provider is not the Donor C/CSP but is the Losing C/CSP.
Eligible Party Identification Codes List