Quote:
was sometimes used as the 'Fault Reporting' Telephone number in an exchange. On five/six digit exchanges it would have other digits prefixed.
There were 69 out of the 549 Group Switching Centre/Trunk Switching Centre phone numbers that ended in 2211 - just as many in 2111 and way more ending in just 111.
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I worked as an apprentice on various London exchanges in the early 80's and did periods of time on 'specials' 222, 839. 930 etc. The main problem was kids who cold pick up the receiver and play with the dial and called us, it was almost a daily occurrence.