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Toll-free numbers use the format 800-NNN-NNNN and premium-rate telephone numbers are written 90x-NNN-NNNN where x varies according to the type of service offered. There are also "short numbers" for emergencies such as 911.
The second digit of non-geographic number prefixes is the number 0, and the number is usually disclosed for national calls in the form 0a0b-nnn-nnnn and is occasionally disclosed in the international format for whatsapp contacts in the form +55 a0b-nnn-nnnn.
Toll-free telephone numbers in the North American Numbering Plan. 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 ...
In Portugal, the prefix is "800" so the 9-digit number is "800 xxx xxx". It is referred as chamada gratuita (free call) or as número verde (green number). In Qatar, toll-free numbers have the format "800' xxxx". In Romania, toll-free numbers have the format "0800 xxx xxx".
16-line message format. 16-line message format, or Basic Message Format, is the standard military radiogram format (in NATO allied nations) for the manner in which a paper message form is transcribed through voice, Morse code, or TTY transmission formats. The overall structure of the message has three parts: HEADING (which can use as many as 10 ...
Known as block number (Arabic: رقم المجمع) formally. The first digit in NNN format and the first two digits in NNNN format refer to one of the 12 municipalities of the country. PO Box address does not need a block number or city name, just the PO Box number followed by the name of the country, Bahrain. Bangladesh: 1972-12-16 BD: NNNN ...
Non-geographic numbers have a three-digit prefix followed by a seven-digit number. They are usually represented in the format 0ppp-nnn-nnnn. Prefixes allocated as of 2013 include: 0800: toll-free telephone numbers; 0810: calls from any area chargeable at local rate; 0822: toll-free numbers used for calling card access
Toll-free and premium numbers. Non-geographic toll-free telephone numbers (800, 833, 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. Telephone number representation