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Code purple: hostage situation; Code red: fire; Code white: violence/aggression; Code yellow: missing patient; Code 66: rapid medical intervention to prevent the patient deteriorating; British Columbia. Codes used in British Columbia, prescribed by the British Columbia Ministry of Health. Code amber: missing or abducted infant or child
This is a list of telephone dialling codes in the United Kingdom, which adopts an open telephone numbering plan for its public switched telephone network. The national telephone numbering plan is maintained by Ofcom, an independent regulator and competition authority for the UK communications industries. This list is based on the official ...
In the UK, only blue lights are used to denote emergency vehicles (although other colours may be used as sidelights, stop indicators, etc.). A call requiring the use of lights and sirens is often colloquially known as a blue light run. Australia. Code 1: A time critical case with a lights and sirens ambulance response. An example is a cardiac ...
Number ranges starting 01 can have National Significant Number (NSN) length of 10 or (very rarely) 9 digits. NSN is the number of digits after the leading 0 trunk code or +44 international prefix. The 0800 range can have NSN length as 10, 9, or 7 digits. The 0845 range can have NSN length as 10 or 7 digits.
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, only the symbol + before the country code may be used [citation needed] irrespective of where the telephone is used at that moment; the ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
An "international call prefix", "international dial-out code" or "international direct dial code" ( IDD code) is a trunk prefix that indicates an international phone call. In the dialling sequence, the prefix precedes the country calling code (and, further, the carrier code, if any, and the destination telephone number ).
Subscriber trunk dialling ( STD ), also known as subscriber toll dialing, is a telephone numbering plan feature and telecommunications technology in the United Kingdom and various Commonwealth countries for the dialling of trunk calls by telephone subscribers without the assistance of switchboard operators .
Widespread UK telephone code misconceptions, in particular brought on by the Big Number Change in 2000, have been reported by regulator Ofcom since publication of a report it commissioned in 2004. The telephone area code for most of Greater London and some surrounding areas is 020, not "0207", "0208" or "0203".
From the introduction of the telephone in the late 1870s, [5] to the early 1990s, telephone numbers in most of the United Kingdom were usually shown with a written exchange name followed by the subscriber number, e.g. 'Mallaig 10' or 'Aberdeen 43342'. This allowed calls to be placed initially through the operator and later by using local or ...