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

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

    1.8 900–999. 2 Area codes by ... consisting of three digits that are prefixed to each local telephone number ... but it was replaced by a 304-932 exchange area code ...

  3. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    For example, 234 235-5678 is a valid telephone number; with area code 234, central office prefix (exchange) 235, and line number 5678. The number 234 911-5678 is invalid, because the central office code must not be in the form N11.

  4. List of emergency telephone numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_emergency...

    SMS messages can be sent to 999 after registration by sending a text message with the word 'Register' to 999. 911 redirects to 999 on mobile phones/public phonebooths [citation needed] and on telephones used in USAFE bases. Vatican City: 112 [108] Police – 113; Ambulance – 118; Fire – 115. [citation needed]

  5. Emergency telephone number - Wikipedia

    en.wikipedia.org/wiki/Emergency_telephone_number

    Because of the design of U.S. central office (phone) switches, it was not practical to use the British emergency number 999 (as was briefly considered). What was up to that time unassigned area code 911 was chosen instead. The "1" as the second digit was key; it told the switching equipment that this was not a routine call.

  6. Telephone numbers in Mexico - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Mexico

    The plan establishes a uniform ten-digit telephone number format. It took effect on August 3, 2019. ... 999 / 990 Mérida, Yucatán: ... 044 + area code + phone number

  7. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/finance/19-dangerous-scam-phone...

    However, if you get a call from a phone number or area code you don’t know, it’s likely best to avoid picking up the call and research the following before you call back: ... Here are examples ...

  8. 911 (emergency telephone number) - Wikipedia

    en.wikipedia.org/wiki/911_(emergency_telephone...

    The first use of a national emergency telephone number began in the United Kingdom in 1937 using the number 999, which continues to this day. [6] In the United States, the first 911 service was established by the Alabama Telephone Company and the first call was made in Haleyville, Alabama, in 1968 by Alabama Speaker of the House Rankin Fite and answered by U.S. Representative Tom Bevill.

  9. Avoid Answering Calls from These Area Codes: Scam Phone ...

    www.aol.com/avoid-answering-calls-area-codes...

    Now, many scam phone numbers have different area codes, including 809, which originates in the Caribbean. Another area code to look out for may look like it’s coming from the United States, but ...