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  2. Telephone numbers in Colombia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_colombia

    When the current format was adopted in that year, existing toll-free numbers were given the format 01-800-0XX-XXXX. These numbers were advertised with the grouping 01-8000 -XX-XXX, leading many people to erroneously believe that the general prefix for toll-free numbers is 01-8000 .

  3. Telephone numbers in Guatemala - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Guatemala

    6 digit numbers: Telephone carriers numbers: for making operator, or collect calls, or getting service from some company. Billed at different rates. 1-800: Toll-free calls redirected to out of country offices 1-801: Local toll-free calls

  4. Area codes 905, 289, 365, and 742 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_905,_289,_365...

    By October 1991, area code 905 had been assigned to relieve exchanges in the Golden Horseshoe, which was and still is Canada's largest toll-free calling zone. The Golden Horseshoe's explosive growth in the second half of the 20th century and the corresponding expansion of telecommunications service would have made another area code necessary in ...

  5. List of prime numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_prime_numbers

    All prime numbers from 31 to 6,469,693,189 for free download. Lists of Primes at the Prime Pages. The Nth Prime Page Nth prime through n=10^12, pi(x) through x=3*10^13, Random prime in same range.

  6. Telephone numbers in Ethiopia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Ethiopia

    List of area codes Old format New format [1] Place/service +251 1 xxxxxx +251 11 1xxxxxx: Addis Ababa North +251 1 xxxxxx +251 11 2xxxxxx: Addis Ababa West

  7. Area codes 416, 647, and 437 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_416,_647,_and_437

    The 1993 split had been intended as a long-term solution for Canada's largest toll-free calling zone. Within five years, however, 416 was once again close to exhaustion. Toronto's size and status as a single rate centre have caused numbers to tend to be used up fairly quickly.

  8. Telephone numbers in Australia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Australia

    Australia uses the free call prefix 1800 for 10 digit freecall numbers. This is similar to the North American or NANPA prefix 1–800, but while in North America, the 1 is the long-distance or toll prefix and 800 is the area code; 1800 in Australia is itself a "virtual area code" (prior to the introduction of 8-digit numbers, the free call code ...

  9. Telephone numbers in Japan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Japan

    1xx Special numbers 001 and 00xx Carrier selection codes 0x 2-digit geographic area codes 0xx 3-digit geographic area codes 0xxx 4-digit geographic area codes 0xxxx 5-digit geographic area codes 0x0 3-digit non-Geographic area codes (excluding 010) 0xx0 4-digit non-Geographic area codes (01x0, 0570, 0800, 0910, 0990)