NPA RELIEF ACTIVITY
OVERLAY DETAIL

OLD NPA
610

OVERLAY NPA
484

TEST #

10D PERMISSIVE

10D MANDATORY

(484) 355-8378

12/05/98

06/05/99

NEW CODE

07/01/99

Area Code 484 will overlay 610 on July 1, 1999.

There will be a 6 month permissive dialing period for 10-digit dialing beginning December 5, 1998, and all existing area code 610 exchanges will remain in area code 610.