| Circle | Size | Graph |
|---|
| Andhra Pradesh Telecom Circle. | 10.9 | |
| Tamil Nadu Telecom Circle (includes Pondichery except Yanam, usually excludes Chennai, MEPZ, Mahabalipuram & Minjur) | 10 | |
| Maharashtra Telecom Circle (includes Goa.but excludes Mumbai, Navi Mumbai & Kalyan) | 9.6 | |
| Uttar Pradesh (East) Telecom Circle. | 9.3 | |
| Karnataka Telecom Circle. | 8.6 | |
| Bihar & Jharkhand Telecom Circle. | 7.9 | |
| Madhya Pradesh & Chhattisgarh Telecom Circle. | 7.8 | |
| Rajasthan Telecom Circle. | 7.6 | |
| Gujarat Telecom Circle (includes Daman & Diu, Dadra & Nagar Haveli) | 7.1 | |
| Uttar Pradesh (West) & Uttarakhand Telecom Circle (excludes Ghaziabad & Noida) | 6.5 | |
| Delhi Metro Telecom Circle (includes NCR, Faridabad, Ghaziabad, Gurgaon & Noida) | 6.2 | |
| West Bengal Telecom Circle (includes Andaman & Nicobar, Sikkim, excludes Calcutta Telecom District) | 5.6 | |
| Punjab Telecom Circle (includes Chandigarh & Panchkula) | 5.5 | |
| Kerala Telecom Circle (includes Lakshadweep) | 5.2 | |
| Mumbai Metro Telecom Circle (includes Navi Mumbai & Kalyan) | 5.2 | |
| Chennai Metro Telecom Circle (includes MEPZ, Mahabalipuram & Minjur) | 4.2 | |
| Orissa Telecom Circle. | 4 | |
| Haryana Telecom Circle (excludes Faridabad, Gurgaon & Panchkula) | 4 | |
| Kolkata Metro Telecom Circle (includes parts of Haora, Hooghly, North & South 24 Parganas and Nadia Districts) | 3.9 | |
| Assam Telecom Circle. | 2.7 | |
| North East India Telecom Circle (excludes Assam) | 2.1 | |
| Himachal Pradesh Telecom Circle. | 2.1 | |
| Jammu & Kashmir Telecom Circle. | 2.1 | |
