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  2. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, or 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.

  3. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    Codes 880 through 882 were used (until 1 April 2004) to allow international customers to access toll-free numbers they otherwise could not by paying the international portion of the toll. 880 was paired with 800, 881 with 888, and 882 with 877. [21] 888: toll-free telephone service: March 1, 1996: created; 889: not in use; available for toll ...

  4. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    The Dominican Republic is assigned specific 1‑800 exchanges in the North American Numbering Plan; the 1-809-200-xxxx exchange is also free for domestic callers in that country. In Egypt, it starts with "0800" followed by a seven-digit number. Unavailable via cellphones. In Ecuador, it starts with "1800" followed by a 6-digit number. Some ...

  5. 1234 (number) - Wikipedia

    en.wikipedia.org/wiki/1234_(number)

    1234 is the natural number following 1233, and preceding 1235. It has two distinct prime factors , 2 and 617 , making it a squarefree semiprime . [ 1 ] It is the number of independent vertex sets in a 4×4 square grid , or equivalently, the number of distinct 4×4 binary matrices in which no two adjacent elements are both equal to 1.

  6. Area codes in Mexico by code - Wikipedia

    en.wikipedia.org/wiki/Area_codes_in_Mexico_by_code

    800 are used for toll free numbers. 801 numbers used to be for premium-rate telephone numbers (such as 1-900 numbers in the United States) . Nowadays 900 numbers are premium-rate telephone numbers. 900–999: Campeche, Chiapas, Oaxaca, Puebla, Quintana Roo, Tabasco, Veracruz and Yucatán

  7. Caldbeck transmitting station - Wikipedia

    en.wikipedia.org/wiki/Caldbeck_transmitting_station

    473.833 MHz: 21- 50 BBC B Scotland: Border (Scotland) DVB-T2: 481.833 MHz: 22- 100 BBC B NE & Cumbria Border (England) DVB-T2 489.833 MHz: 23- 50 SDN — — DVB-T: 497.833 MHz: 24- 50 Digital 3&4 — Border (Scotland) DVB-T 505.833 MHz: 25- 100 BBC A NE & Cumbria — DVB-T 513.833 MHz: 26- 50 Arqiva A — — DVB-T 521.833 MHz: 27- 50 BBC A ...

  8. Area codes 778, 236, and 672 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_778,_236,_and_672

    Area codes 778, 236, and 672 are telephone area codes in the North American Numbering Plan (NANP) for the Canadian province of British Columbia.They form an overlay complex with area code 604, which serves only a small southwestern section, the Lower Mainland, of the province (including Vancouver), and area code 250, which serves the rest of the province.

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

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

    Toronto is the centre of the largest local calling area in Canada, and one of the largest in North America. As of 2013, the following points in area code 905 were a local call to 416 in Toronto: Ajax-Pickering, Aurora, Beeton, Bethesda, Bolton, Brampton, Caledon East, Campbellville, Castlemore, Claremont, Georgetown, Gormley, King City, Markham, Milton, Mississauga (rate centres Clarkson ...