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In computer networking, a port or port number is a number assigned to uniquely identify a connection endpoint and to direct data to a specific service. At the software level, within an operating system, a port is a logical construct that identifies a specific process or a type of network service.
Port Said: 66 066-xxx-xxxx +20-66-xxx-xxxx Qena: 96 ... Emergency phone numbers. Egypt has a number of emergency phone numbers including: Police: 122 (or 112 on ...
Previously, 06-0, 06-1000 and 06-4 were used for toll-free numbers, 06-8 for shared cost, 06-9 for premium rate, and other 06-numbers for mobile numbers. 0011 and later 06-11 was used for emergency services before this changed to 112. 09 was used as the international access code before this changed to 00.
Numbers beginning with 014 are predominantly used for satellite services. Parts of the 014 prefix had previously been used as a 9 digit, AMPS mobile phone access code. The 01471 prefix is the ten-digit replacement for the previous, nine-digit ITERRA satellite phone code 0071 (followed by 5 numbers). Prior to its use for ITERRA (and other ...
Number portability usually has geographic limitations, such as an existing local telephone company only being able to port to a competitor within the same rate centre. Mobile carriers may have much larger market areas, and can assign or accept numbers from any area within the region.
The Italian enclave San Marino has its own country code 378, but landline numbers can be reached using the Italian country code as well: the prefix "0549" is assigned to San Marino. Dialing either "+378 xxxxxx" or "+39 0549 xxxxxx" will reach the same number. Mobile phone customers are sometimes assigned Italian phone numbers.
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]
telephone line to phone cord: The wall jack. This connection is the most standardized, and often regulated as the boundary between an individual's telephone and the telephone network. In many residences, though, the boundary between utility-owned and household-owned cabling is a network interface on an outside wall known as the demarcation ...