Planning Letter 397

An all services overlay has been approved by the Nebraska Public Service Commission (PSC), implementing the new 531 NPA as the relief method for the existing 402 NPA. The PSC has also outlined an implementation scheduled for open-ended permissive 10-digit local dialing for the 308 NPA “to be placed in service coincident with the start of permissive dialing in the 402 NPA.” The schedule, outlined below, may be extended by the PSC should it deem the extension “warranted and in the public interest.”

Relief Plan Implementation:

• 6/26/10 – Start of permissive 10-digit dialing.
• 9/26/10 – Earliest date central office codes in the new 531 NPA may be ordered through NANPA.
• 2/26/11 – End of permissive dialing and start of mandatory 10-digit dialing.
• 3/26/11 – Earliest new NPA central office code activation date; and effective date of the new 531 NPA.

While callers may use 7-digit or 10-digit dialing during the permissive period, the latter is encouraged in preparation for implementation of mandatory 10-digit dialing. Also to prepare for the end of the permissive dialing, carriers should ensure their switches are ready to begin sending 10 digits prior to the mandatory dialing conversion date.

402 and 531 NPA Dialing Plan (coincident with mandatory 10-digit dialing) -- Calls Terminating in Home NPA (HNPA) or Foreign NPA (FNPA) Dialing Plans by Call Type:
~ Local and EAS = 10-digits (NPA-NXX-XXX)
~ Toll = 1+10-digits (1+NPA-NXX-XXXX)
~ Operator services (credit card, collect or third party) =0+10-digits (0+NPA-NXX-XXXX)

308 NPA Open-Ended Dialing Plan (coincident with permissive 10-digit dialing) -- Calls Terminating in Home NPA (HNPA) or Foreign NPA (FNPA) Dialing Plans by Call Type:
~ Local and EAS = 7-digits (NXX-XXX) or 10-digits (NPA-NXX-XXX)
~ Toll = 1+10-digits (1+NPA-NXX-XXXX)
~ Operator services (credit card, collect or third party) =0+10-digits (0+NPA-NXX-XXXX)

Beginning 12/13/10, test numbers will be available and it is recommended that all international and domestic carriers use these to ensure the new 531 NPA has been activated throughout their systems prior to 3/26/11. For additional information, please visit www.nanpa.com.