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  2. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens. Alternatively, sirens may be used if necessary ...

  3. Police code - Wikipedia

    en.wikipedia.org/wiki/Police_code

    A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include " 10 codes " (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes , or other ...

  4. 911 (emergency telephone number) - Wikipedia

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

    History. 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. 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.

  5. Emergency telephone number - Wikipedia

    en.wikipedia.org/wiki/Emergency_telephone_number

    The GSM phones may regard some phone numbers with one or two digits as special service codes. It might be impossible to make an emergency call to numbers like 03 or 92 with a mobile phone. In those cases the emergency number has to be called by using a landline telephone or with an additional first/last digit (for example 922 or 992 instead of ...

  6. List of emergency telephone numbers - Wikipedia

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

    It is possible to dial 112 and get direct connection with the emergency services by pressing 1 for police, 2 for ambulance and 3 for fire on Vip operator mobile phones. Slovakia: 158: 155: 150: Municipal police – 159. Slovenia: 112: Police – 113; Road help – 1987; Emergency at sea – 080 18 00. Spain: 112

  7. 311 (telephone number) - Wikipedia

    en.wikipedia.org/wiki/311_(telephone_number)

    311 is a special telephone number supported in many communities in Canada and the United States. The number provides access to non-emergency municipal services. The number format follows the N11 code for a group of short, special-purpose local numbers as designated in the North American Numbering Plan . The telephone number 3-1-1 creates a ...

  8. N11 code - Wikipedia

    en.wikipedia.org/wiki/N11_code

    An N11 code (pronounced Enn-one-one) is a three-digit dialing code used in abbreviated dialing in the North American Numbering Plan (NANP). The mnemonic N stands for the digits 2 through 9 and thus the syntax stands for the codes 211, 311, 411, 511, 611, 711, 811, and 911. These dialing codes provide access to special local services, such as ...

  9. List of Illinois area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Illinois_area_codes

    With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The remaining area without an overlay in the northern part of Illinois, 708, eventually received such with area code 464 taking effect on January 21 ...