As a matter of course, incoming calls to payphones are disabled; furthermore, the Bell ANAC number is also disabled (although the telephone number is marked on the payphone itself as it is needed to report a non-working coin 'phone to 6-1-1 repair service).
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N11 prefixes such as 211, 311 and 511 are also often disappearing as test numbers as these codes are reassigned to local services such as community information,
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