I've been trying to understand the process involved in porting telephone
numbers following a problem while porting mine to the NBN. The number is in a
range allocated to Telstra but the VoIP service is provided by my ISP, which is
not Telstra and I believe doesn't have a carrier licence.
It seems each carrier publishes a PLNR ("Ported Local Number Register") file
every day or so. This file lists numbers allocated to the carrier which have
been ported to another (specified) carrier.
https://www.thenumberingsystem.com.au/#/number-register/search displays the
current status of a number. For example 1300-300056 is listed as allocated to
Telstra but currently held by Primus. However my number is still shown as
allocated to Telstra and currently held by Telstra, and I'm told only
"business" and "special" numbers (13x, 1300x, etc.) are shown there.
Can any Linker shed light on how know how calls are routed to a ported number?
Ported numbers must now be occurring on a large scale given the NBN, and call
routing would have to be efficient.
David L.
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