To identify the mobile numbers that which mobile number is of which service provider and of which area , for that there is plan which is called telephone numbering plan which describe the information about any mobile number in India. All mobile number in India start with 9, 8, 7 or 6 which are based on GSM, WCDMA and LTE technologies. In 10 Digits Indian mobile number statring four digit identifies the telecom circle and last six digits identifies the subscriber. A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbers in India are administered under the National Numbering Plan of 2003 by the Department of Telecommunications of the Government of India. The numbering plan was last updated in 2015. The country code "91" was assigned to India by the International Telecommunication Union in the 1960s.

Here is the list of various sim operators operating in India.



For a variety of purposes, India's telephony regulators have divided the country up into a number of regions, called 'Telecom Circles' or 'Telecom Service Areas'. You will see reference to these telecom circles in various situations. For example: when looking for telephone numbers or telephone directories you will generally need to search by telecom circle. Or when reviewing telephone service plans and coverage areas for the telephone companies, you will see these may vary by telecom circle. Also, if a telephone company wants to operate in a specific telecom circle, they must purchase a license for that circle, usually through an auction process.


List of Circles


Circle Name Area Covered
Andhra Pradesh & Telangana State of Andhra Pradesh, State of Telangana and Yanam district
Assam State of Assam
Bihar & Jharkhand State of Bihar and State of Jharkhand
Delhi Union Territory of Delhi, Faridabad district and Gurgaon district in Haryana, Ghaziabad district and Gautam Buddh Nagar district in Uttar Pradesh
Gujarat State of Gujarat and Union Territory of Dadra and Nagar Haveli and Daman and Diu
Himachal Pradesh State of Himachal Pradesh
Haryana State of Haryana (excluding Faridabad district, Gurgaon district and Panchkula district).
Jammu & Kashmir Union Territory of Jammu and Kashmir and Union Territory of Ladakh
Kerala & Lakshadweep State of Kerala, Union Territory of Lakshadweep and Mahé district
Karnataka State of Karnataka
Kolkata Kolkata (including parts of Howrah district, Hooghly district, North 24 Parganas district, South 24 Parganas district and Nadia district)
Maharashtra & Goa State of Maharashtra (excluding Mumbai, Navi Mumbai and Kalyan) and State of Goa
Madhya Pradesh & Chhattisgarh State of Madhya Pradesh and State of Chhattisgarh
Mumbai Mumbai, Navi Mumbai and Kalyan
North East State of Arunachal Pradesh, State of Manipur State of Meghalaya, State of Mizoram, State of Nagaland and State of Tripura
Odisha State of Odisha
Punjab State of Punjab, Union Territory of Chandigarh and Panchkula district
Rajasthan State of Rajasthan
Tamil Nadu State of Tamil Nadu, Puducherry district and Karaikal district
UP (East) Eastern Uttar Pradesh
UP (West) Western Uttar Pradesh (excluding Ghaziabad district and Gautam Buddh Nagar district) and State of Uttarakhand
West Bengal State of West Bengal (excluding Kolkata), State of Sikkim and Union Territory of Andaman and Nicobar Islands
Chennai Now, merged with Tamil Nadu Circle


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