the first customer call using the nanp was made, an indication of when north american phone numbers changed to 7 digits in 1947.
the first customer call using the nanp was made, an indication of when north american phone numbers changed to 7 digits in 1947.
when was the first customer call using the nanp made, an indication of when north american phone numbers changed to 7 digits?
1947
the new numbering plan was officially accepted in october 1947, dividing most of north america into eighty-six numbering plan areas (npas). each npa was assigned a numbering plan area code, often abbreviated as "area code". these codes were first used by long-distance operators to establish long-distance calls between toll offices. the first customer-dialed direct call using area codes was made on november 10, 1951, from englewood, new jersey, to alameda, california. direct distance dialing (ddd) was subsequently introduced across the country. by the early 1960s, most areas of the bell system had been converted and ddd had become commonplace in cities and most larger towns.
north american numbering plan
bullet::::- 80: żabbar, vittoriosa, fgura









































section::::non-geographic numbering.









































the prefix 9 for seven-digit vodafone malta mobile phone numbers was changed to 99.









































the prefix 09 for vodafone mobile phone numbers was changed to 99.









































mobile phone numbers with the prefix 09, which were already eight digits, changed to 99. the digit 0 was to be dialled from outside malta as well as domestically.









































other non-geographic number ranges also changed, with the prefix for seven-digit mailbox numbers changing from 07 to 217.









































similarly, the prefix for pager numbers changed from 70 and 71 to 7117
telephone numbers in malta