Why Indian mobile numbers start with +91: The story behind the code

India's phone numbers begin with +91 due to the International Telecommunication Union's system of dividing the world into ...
AZ Central

Scarcity of 480 numbers leads to new system for assigning area codes in Phoenix area

Any new phone or extra line that you receive after Sept. 12 could be assigned a 480, 602 or 623 area code — whether you live in Tolleson or Tempe, Scottsdale or Surprise, or Phoenix or Peoria — thanks ...