Glossary of Porting (LNP) Terms

Here’s a few of the commonly used Local Number Portability (LNP) terms that it would pay to get your head around as you start with number porting.

LNP terms

LNP Local Number portability (LNP) is the capability to take your phone number with you if you change networks, in the case of local number portability, or phone carriers, in the case of mobile number portability. This is known as “porting”.
Donor The Carrier or Carriage Service Provider to which a Telephone Number has been allocated or transferred under the Numbering Plan (basically the original Carrier the number was allocated to from ACMA)
Loser The Carrier or Carriage Service Provider from which a Telephone Number has been or is to be ported (basically the current carrier who is about to lose the number)
Gaining The Carrier or Carriage Service Provider to which a Telephone Number has been or is to be ported (basically the carrier who is going to receive the number)
CCA Call Collection Area – there is a total of 66 CCA’s in Australia
Reversal The reinstatement of a Customer’s service with the Losing Carrier or Carriage Service Provider during the Reversal Period for Telephone Numbers Ported using the Simple/Cat A Process
Emergency Return The re-establishment of a service, which can be in the form of either the Customer’s original service, or if that it is not possible, an alternative service. Emergency Return only applies to complex Ports and can only be within a certain time frame of completion of the port
Pre Port Validation (PNV) A regulatory form to allow the gaining carrier to request service number details from the losing carrier
PAF Porting Authority Form – More on Page 10 under ‘Customer Authorisation’’
SNA Simple Notification Advice means an advice contained within a Porting Notification Order which provides the details required for a Telephone Number to be Ported using the Cat-A (Simple) Process
CNA Complex Notification Advice means an advice contained within a Porting Notification Order from the Gaining C/CSP to the Losing C/CSP which, provides the initial Porting details for each Telephone Number to be Ported using the Cat-C (Complex) process

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