Home |
Search |
Today's Posts |
|
London Transport (uk.transport.london) Discussion of all forms of transport in London. |
|
LinkBack | Thread Tools | Display Modes |
#11
|
|||
|
|||
Telephone line numbers, prefixes, and area codes
On Apr 1, 2:41*pm, "Adam H. Kerman" wrote:
AT&T created the numbering plan in 1947, and it took effect in 1951. It's said that they intended to number all the world's countries within it, but I don't see how there could have possibly been sufficient numbering space.. Given the many challenges in converting the US system to universal 10 digit addressing and converting the remaining manual exchanges to dial, I don't think they were too concerned with direct dial international calling at that time. They still had to lay cables to many places to replace radio for overseas calls. Some countries couldn't be reached, by any method, until the 1970s. |
Thread Tools | Search this Thread |
Display Modes | |
|
|