NANPA Planning Letter (PL) Number 431 – Saskatchewan, Canada – NPA 639 to Overlay NPA 306
NANPA has assigned NPA 639 to provide relief for the 306 NPA serving Saskatchewan, Canada effective May 2013.
The distributed overlay will require residents to dial 10-digits once the permissive dialing period ends.
Key implementation dates are:
11/25/2012 – Central office codes in new NPA become available
02/25/2013 – Permissive dialing period begins
05/25/2013 – Mandatory 10-digit dialing begins
For test numbers and a map of the affected area, go to www.nanpa.com.
02/25/2013 – Permissive dialing period begins
05/25/2013 – Mandatory 10-digit dialing begins
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