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Support Centre My Account Portal Number Porting FAQ Number Porting FAQ - Category A or C

Number Porting FAQ - Category A or C

Category A number ports are applicable only to single/standalone numbers delivered on:

  • PSTN fixed phone lines (a standard, single port "phone plug in the wall" - the same as is typically found in a residential phone service) with no complex services (see below)
  • NBN Phone services, where the service is delivered from the "Phone" ports on the NBN NTU
  • Porting from most other VoIP providers (see below for exceptions)


Category C number ports are applicable to any numbers that:

  • Are delivered over an ISDN / PRI service
  • Are in a hunt group
  • Are on a fax duet service
  • Include a number range (10-range, 100-range, etc.)
  • Are being ported from Telstra DOT (even if it's a single number)
  • Are being ported from Optus Loop services

It may be possible to remove a specific number from a hunt group or fax duet service and port it as a Category A number. Please contact the current provider to see if this is possible.

If any of your numbers being ported require Category C porting, we generally recommend setting Category C for all of your numbers on the port.

This way, all of your numbers will be processed as a single port, so they will all fall under a single Category C porting cost and will be processed at the same time.


Category M number ports are applicable to any mobile numbers.

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