Topic summary
Telecom circle
Extracted from the Wikipedia article Mobile telephone numbering in India.
Telecom circles
The Department of Telecommunications has divided India into various telecom circles such that within each circle, the call is treated as a local call, while across zones, it becomes a long-distance call. As of July 2018 there are 22 telecom circles or service areas. They are classified into four categories: Metro, A, B, C. Chennai, Delhi, Mumbai, and Kolkata fall under Metro category.