June 24, 2009 Islamabad: As per the instructions of PTA, Pakistan Telecommunication Company Ltd (PTCL) would shift its fixed line numbering plan from 7 to 8 digit series. Initially migration from 7 series to 8 digit series would take place in Lahore and Karachi. As per details, Digit “3” will be added in all existing 7 digits numbers of Karachi and Lahore except the numbers starting from “9”. Digit “9” will be added in all existing numbers starting from “9”. An important point to remember is the numbers are being added to existing numbers not area codes, with the exemption of army exchanges which would remain same. For the customer’s awareness and facilitation, the new series plan will run parallel to old one for a period of three months w.e.f July 01, 09 till Sep 30, 09. The period from Oct 01, 09 till Dec 30, 09 will be covered by announcements which would be made in order to facilitate subscribers/customers.