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In Argentina, area codes are two, three, or four digits long (after the initial zero).Local customer numbers are six to eight digits long. The total number of digits is ten, for example, phone number (11) 1234-5678 for Buenos Aires is made up of a 2-digit area code number and an 8-digit subscriber's number, while (383) 123-4567 would be an example of a Catamarca number.
Since international telephone numbers can have up to 15 digits, the maximum number of digits to be dialed is 19. For example, to call the number 555-0123 in Washington, D.C. (area code 202), United States (country code 1), using TIM as the chosen carrier (selection code 41), one would dial 00 41 1 202 555 0123.
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
Threema is a paid cross-platform encrypted instant messaging app developed by Threema GmbH in Switzerland and launched in 2012. The service operates on a decentralized architecture and offers end-to-end encryption. Users can make voice and video calls, send photos, files, and voice notes, share locations, and make groups.
Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
Calling formats. To call in Ivory Coast, the following format is used: yy xx xx xx xx - calls within Ivory Coast. +225 27 xx xx xx xx calls from outside Ivory Coast to a landline. +225 01 xx xx xx xx / +225 05 xx xx xx xx / +225 07 xx xx xx xx / +225 25 xx xx xx xx calls from outside Ivory Coast to a mobile number.
Area codes in Afghanistan are two digits long. It is common to write phone numbers as (0xx) yyy-yyyy, where xx is the area code. The 0 prefix is for long-distance dialing from within the country. International callers should dial +93 xx yyyyyyy . Area codes for common cities are: 093 xx yyyyyyy: Afghanistan. 020 yyy yyyy: Kabul.
Toll-free and premium numbers. Non-geographic toll-free telephone numbers (800, 833, [ 3] 844, 855, 866, 877, 888) and premium-rate telephone numbers (900) are allocated centrally by the NANP Administrator. Calls to telephone numbers with the central office code 976 are billed as expensive premium calls.