The 'area' of a telephone book - is simply the geographical coverage. Some books only cover a single town - others cover whole counties.
0121 serves the Birmingham, England area for telephone networks.
Online phone directories tend to cover a much wider area - even a whole country. Paper directories are more likely to just cover your local area.
No, telephone area codes are discrete data.
There is no telephone area code 185 in Russia.
AT&T offers great prices on landline telephone servicein your area.
You can get a state-by-state listing of telephone area codes in India at the link below.
AT&T services your area.
Mashhad is in Iranian telephone area code 0511, which is +98 511 in international format.
The telephone area code for Bwizibwera, Uganda, is 0485, or +256 485 in international format.
The telephone area code for Gulu, Uganda, is 0471, or +256 471 in international format.
The telephone area code for Hoima, Uganda, is 0465, or +256 465 in international format.