Which country are you talking about?
Nowhere ! UK numbers starting with 0161 are for the MANCHESTER area !
There are not currently telephone numbers beginning with 75 in Dublin, Ireland.
Most telephone numbers in Destelbergen, Belgium, begin with 09, which is +32 9 in international format.
All landlines in the Manchester area start with 0161
STD dialling began in the UK in 1958.
5 digit telephone numbers having at least one of their digits repeated is = total possible 5 digit telephone numbers - 5 digit telephone numbers without any digit being repeated. =(10*10*10*10*10)-(10*9*8*7*6) =100000-30240 =69760
They don't all start with 9. Mine doesn't.
The transition to 9-digit telephone numbers in Brazil was completed on January 7, 2016. This change was implemented to accommodate the increasing demand for phone numbers, particularly with the rise of mobile phones. The new format included an additional digit for mobile numbers, which became a standard across the country.
The duration of Talking Telephone Numbers is 1800.0 seconds.
Skype would be a good start, It can make calls to real phone numbers.
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Talking Telephone Numbers was created on 1994-02-28.