Operators at a 9-9-9 centre in Blackburn have helped celebrate the service's 75th birthday today.
They work in BT's oldest current emergency call centre.
Burnley, Livepool, Macclesfield, Manchester and Rochdale, were among the first areas outside London to use the treble nine number.
More top news
Breezy conditions continue for coasts & hills. Light rain developing from early Sunday morning but improving from the north through the day
Prime Minister Theresa May praised the "tremendous" work of the military as she visited Liverpool to mark Armed Forces Day.
The Prime Minister praised the armed forces as she joined celebrations in Liverpool.