When reading numbers in a sequence, such as a telephone or serial number, British people will usually use the terms double followed by the repeated number. Hence 007 is double oh seven. Exceptions are the emergency telephone number 999, which is always nine nine nine and the apocalyptic "Number of the Beast", which is always six six six. In the US, 911 (the US emergency telephone number) is usually read nine one one, while 9/11 (in reference to the September 11, 2001, attacks) is usually read nine eleven.
When reading numbers in a sequence such as a telephone or serial number British people will usually use the terms double followed by the repeated number Hence 007 is double oh seven Exceptions are the emergency telephone number 999 which is always nine nine nine and the apocalyptic "Number of the Beast" which is always six six six In the US 911 (the US emergency telephone number) is usually read nine one one while 9/11 (in reference to the September 11 2001 attacks) is usually read nine eleven