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On 1 July 2009, telephone numbers in Karachi and Lahore were changed from seven digits to eight digits. This was accomplished by adding 9 to the beginning of all phone numbers that started with a 9 i.e. government and semi-government lines and adding 3 to all other lines. [1] [2] [clarification needed]
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
On 1 July 2009, telephone numbers in Karachi and Lahore were changed from seven digits to eight digits. This was accomplished by adding the digit 9 to the beginning of any phone number that started with a 9 (government and semi-government connexions), and adding the digit 3 to any phone numbers that did not start with the number 9. [1]
Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
Telephone numbers in the British Indian Ocean Territory Brunei: 6 +673: 00: No area codes: Telephone numbers in Brunei Cambodia: 8 +855: 00: Open: Telephone numbers in Cambodia China: 8 +86: 00: Telephone numbers in China Cyprus: 3 +357: 00: Telephone numbers in Cyprus Egypt: 2 +20: 00: Telephone numbers in Egypt Georgia: 9 +995: 00: Telephone ...
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Number Prefix Technology Services Ownership Total Subscribers as of January 2025 [1] Mainland Pakistan AJ&K/Gilgit-Baltistan; 1 Jazz (PMCL - Pakistan Mobile Communications Limited) 410 / 01 410 / 07 030x 032x 2G: 900 MHz (GPRS, EDGE) 4G: 900 (B8) / 1800 (B3) / 2100 (B1) MHz (LTE/LTE-A) 900 / 1800 MHz (GPRS, EDGE) Mobile Broadband VoLTE / VoWiFi
Due to the large demand for landlines in Lahore and Karachi, in 2009, PTCL decided to increase the 7-digit subscriber numbers to 8-digits, adding "9" before existing Government numbers and "3" before the others (e.g. the number 042–7878787 before 2009, was changed to 042–37878787).