Bharat Sanchar Nigam Limited
STATE WISE ISDN STATIONS ( AS ON SEPTEMBER 2001)
| Station Name | State | Station Name | State | Station Name | State | Station Name | State |
| Adilabad | Andhra Pradesh | East Godavari | Andhra Pradesh | Lucknow | Uttar Pradesh (E) | Salem | Tamilnadu |
| Agra | U.P.(West) | Ennathur | Tamilnadu | Ludhiana | Punjab | Sambalpur | Orrisa |
| Ahamedabad | Gujrat | Ernakulam | Kerala | M.M. Nagar | Tamilnadu | Sanand | Gujrat |
| Ahmedanagar | Maharastra | Erore | Tamilnadu | Madurai | Tamilnadu | Sangli | Maharastra |
| Aizwal | North East | Etawah | Uttar Pradesh (E) | Mahabub Nagar | Andhra Pradesh | Sangrur | Punjab |
| Ajmer | Rajasthan | Faizabad | Uttar Pradesh (E) | Mahapalipuram | Tamilnadu | Sankagiri | Tamilnadu |
| Alapuzha | Kerala | Faridabad | Haryana | Mahemdavad | Gujrat | Sasaram | Bihar |
| Allahabad | Uttar Pradesh (E) | Farrukhabad | Uttar Pradesh (E) | Mahua | Gujrat | Satna | Madhya Pradesh |
| Alwar | Rajasthan | Ferozepur | Punjab | Mainpuri | Uttar Pradesh (E) | Sawai Madhopur | Rajasthan |
| Ambala Cantt. | Haryana | Gandevi | Gujrat | Malappuram | Kerala | Shajapur | Madhya Pradesh |
| Ambala City | Haryana | Gandhi Nagar | Gujrat | Mambakkam | Tamilnadu | Shillong | North East |
| Amreli | Gujrat | Gandhidham | Gujrat | Mandi | Himachal Pradesh | Shimla | Himachal Pradesh |
| Amritsar | Punjab | Gangtak | West Bengal | Mandla | Madhya Pradesh | Shimoga | Karnataka |
| Anand | Gujrat | Ghaziabad | U.P.(West) | Mandvi | Gujrat | Sidhpur | Gujrat |
| Anantapur | Andhra Pradesh | Goa | Maharastra | Mandya | Karnataka | Siliguri | West Bengal |
| Ankleshwar | Gujrat | Godhra | Gujrat | Mangalore | Karnataka | Silvasa | Gujrat |
| Ariyalur | Tamilnadu | Gorakpur | Uttar Pradesh (E) | Mangrol | Gujrat | Sirohi | Rajasthan |
| Asansoal | West Bengal | Guduvanchery | Tamilnadu | Mansa | Gujrat | Sivaganga | Tamilnadu |
| Aska | Orrisa | Gulbarga | Karnataka | Manval Nagar | Tamilnadu | Sivaganga | Tamilnadu |
| Attur | Tamilnadu | Gummidipondi | Tamilnadu | Medak | Andhra Pradesh | Solan | Himachal Pradesh |
| Aurangabad | Maharastra | Gundlay | Gujrat | Meerut | U.P.(West) | Solapur | Himachal Pradesh |
| Bagalkot | Karnataka | Guntur | Andhra Pradesh | Mehsana | Gujrat | Spirerumbudur | Tamilnadu |
| Balasinor | Gujrat | Gurgaon | Haryana | Mercara | Karnataka | Sri Kakulam | Andhra Pradesh |
| Balasore | Orrisa | Guwahati | Assam | Mettur Dam | Tamilnadu | Srinagar | Jammu & Kashmir |
| Balugaon | Orrisa | Gwalior | Madhya Pradesh | Mevalur Kuppam | Tamilnadu | Surat | Gujrat |
| Bangalore | Karnataka | Hajipur | Bihar | Midnapore | West Bengal | TDN Khandwa | Madhya Pradesh |
| Bankura | West Bengal | Halol | Gujrat | Minjur | Tamilnadu | Thanjavarur | Tamilnadu |
| Banswara | Rajasthan | Hardwar | Uttaranchal | Modasa | Gujrat | Theni | Tamilnadu |
| Barabanki | Uttar Pradesh (E) | Hassan | Karnataka | Mora | Gujrat | Thiruvalla | Kerala |
| Bardoli | Gujrat | Himatnagar | Gujrat | Moradabad | U.P.(West) | Tiruchengode | Tamilnadu |
| Bareilly | U.P.(West) | Hisar | Haryana | Morbi | Gujrat | Tirunelveli | Tamilnadu |
| Bareja | Gujrat | Hoshangabad | Madhya Pradesh | Muzaffarpur | Bihar | Tiruporur | Tamilnadu |
| Barhampur | West Bengal | Hoshiarpur | Punjab | Mysore | Karnataka | Tiruppathur | Tamilnadu |
| Barwala | Gujrat | Hospet | Karnataka | Nad Civil Road | Gujrat | Tirupur | Tamilnadu |
| Basti | Uttar Pradesh (E) | Hosur | Tamilnadu | Nadiad | Gujrat | Tiruvallur | Tamilnadu |
| Bathinda | Punjab | Hubli | Karnataka | Nadiad Pij Road | Gujrat | Tiruvanamalai | Tamilnadu |
| Bavla | Gujrat | Hyderabad | Andhra Pradesh | Nagapattnam | Tamilnadu | Tiruvarur | Tamilnadu |
| Belgaum | Karnataka | Idar | Gujrat | Nagercoil | Tamilnadu | Torangallu | Karnataka |
| Bellary | Karnataka | Impahal | North East | Nagpur | Maharastra | Trichur | Kerala |
| Berhampur | Orrisa | Indore | Madhya Pradesh | Nainital | Uttaranchal | Trichy | Tamilnadu |
| Bhanvad | Gujrat | Jabalpur | Madhya Pradesh | Nalco Nagar | Orrisa | Trivandrum | Kerala |
| Bharatpur | Rajasthan | Jagatpur | Gujrat | Nalganga | Andhra Pradesh | Tumkur | Karnataka |
| Bharuch | Gujrat | Jaipur | Rajasthan | Namakkal | Tamilnadu | Tuticorin | Tamilnadu |
| Bhavnagar | Gujrat | Jajpur Town | Orrisa | Namaul | Haryana | Udaipur | Rajasthan |
| Bhilwara | Rajasthan | Jalandhar | Punjab | Nanded | Maharastra | Ulundai | Tamilnadu |
| Bhiwadi | Rajasthan | Jalgaon | Maharastra | Nandsaur | Madhya Pradesh | Umargaon | Gujrat |
| Bhopal | Madhya Pradesh | Jambusar | Gujrat | Nasik | Maharastra | Una | Gujrat |
| Bhubaneshwar | Orrisa | Jammu | Jammu & Kashmir | Navalur | Tamilnadu | Unjha | Gujrat |
| Bhuj | Gujrat | Jamnagar | Gujrat | Navsari | Gujrat | Upleta | Gujrat |
| Bidada | Gujrat | Jamshedpur | Jharkhanda | Naya Garh | Orrisa | V.V. Nagar | Gujrat |
| Bidar | Karnataka | Jetpur | Gujrat | Nellore | Andhra Pradesh | Vadodara | Gujrat |
| Bijapur | Karnataka | Jhabua | Madhya Pradesh | New Tehri | Uttaranchal | Valsad | Gujrat |
| Bikner | Rajasthan | Jhandi | Uttar Pradesh (E) | Neyveli T.S. | Tamilnadu | Vapi | Gujrat |
| Bokaro | Bihar | Jharsuguda | Orrisa | Nizamabad | Andhra Pradesh | Varanasi | Uttar Pradesh (E) |
| Bolangir | Orrisa | JMN P Coly | Gujrat | Noida | U.P.(West) | Vellivayal Chavadi | Tamilnadu |
| Bopal | Gujrat | Jodhpur | Rajasthan | Ooty | Tamilnadu | Vellore | Tamilnadu |
| Borsad | Gujrat | Kadi | Gujrat | Padra | Gujrat | Veraval | Gujrat |
| Botad | Gujrat | Kalol | Gujrat | Palanpur | Gujrat | Villupuram | Tamilnadu |
| Calcutta | Calcutta TD | Kalugandapalli | Tamilnadu | Palej | Gujrat | Viramgam | Gujrat |
| Chandigarh | Punjab | Kalyan | Maharastra | Palghat | Kerala | Virud Nagar | Tamilnadu |
| Changodar | Gujrat | Kancheepuram | Tamilnadu | Palitana | Gujrat | Vishakhapatnam | Andhra Pradesh |
| Chedambaram | Tamilnadu | Kandala | Gujrat | Pallipalayam | Tamilnadu | Visnagar | Gujrat |
| Chengalputtu | Tamilnadu | Kannur | Kerala | Panipat | Haryana | Vizanagaram | Andhra Pradesh |
| Chennai | Chennai TD | Kanpur | UP(E) | Panrutti | Tamilnadu | Vyara | Gujrat |
| Chhatarpur | Madhya Pradesh | Kapodara | Gujrat | Paralikhomundi | Orrisa | Wadhwan | Gujrat |
| Chhatral | Gujrat | Karaikudi | Tamilnadu | Patan | Gujrat | Wankaner | Gujrat |
| Chhatrapur | Orrisa | Karamsad | Gujrat | Pathankot | Punjab | Warangal | Andhra Pradesh |
| Chhindwara | Madhya Pradesh | Karim Nagar | Andhra Pradesh | Patiala | Punjab | West Godavari | Andhra Pradesh |
| Chickmagalur | Karnataka | Karnal | Haryana | Patna | Bihar | Yamunanagar | Haryana |
| Chikhli | Gujrat | Karnool | Andhra Pradesh | Perambalur | Tamilnadu | Zanor | Gujrat |
| Chithode | Tamilnadu | Karur | Tamilnadu | Phulbani | Orrisa | ||
| Chittor | Andhra Pradesh | Karwar | Karnataka | Pollachi | Tamilnadu | ||
| Coimbatore | Tamilnadu | Kavarapattai | Tamilnadu | Pondichery | Tamilnadu | ||
| Cuddalore | Tamilnadu | Kelambakkam | Tamilnadu | Ponneri | Tamilnadu | ||
| Cuddapah | Andhra Pradesh | Keonjhar | Orrisa | Porbandar | Gujrat | ||
| Cuttack | Orrisa | Keshod | Gujrat | Port Blair | A & N | ||
| Dabhoi | Gujrat | Khalilabad | Uttar Pradesh (E) | Portinova | Tamilnadu | ||
| Dahod | Gujrat | Khambhalia | Gujrat | Prakasham | Andhra Pradesh | ||
| Dakor | Gujrat | Khammam | Andhra Pradesh | Pudukottai | Tamilnadu | ||
| Daman | Gujrat | Kharagpur | West Bengal | Pune | Maharastra | ||
| Davangore | Karnataka | Khatraj | Gujrat | Puri | Orrisa | ||
| Deesa | Gujrat | Khim Pipodara | Gujrat | Raichur | Karnataka | ||
| Dehradun | Uttaranchal | Kila Pardi | Gujrat | Raigad | Maharastra | ||
| Dewas | Madhya Pradesh | Kodaikanal | Tamilnadu | Raipur | Chhatishgarh | ||
| D-Gondal | Gujrat | Kodinar | Gujrat | Rajakulam | Tamilnadu | ||
| Dhanbad | Jharkhanda | Kolar | Karnataka | Rajgarh | Madhya Pradesh | ||
| Dhandhuka | Gujrat | Kolhapur | Maharastra | Rajkot | Gujrat | ||
| Dharamsala | Himachal Pradesh | Kollam | Kerala | Rajpur | Gujrat | ||
| Dharamsala | Madhya Pradesh | Koppal | Karnataka | Ramnad | Tamilnadu | ||
| Dharmapuri | Tamilnadu | Koraput | Orrisa | Ranchi | Jharkhanda | ||
| Dhenkanal | Orrisa | kota | Rajasthan | Ranipet | Tamilnadu | ||
| Dholka | Gujrat | Kottayam | Kerala | Rasipuram | Tamilnadu | ||
| Dhoraji | Gujrat | Kovalam | Tamilnadu | Rewa | Madhya Pradesh | ||
| Dindugal | Tamilnadu | Kozhikode | Kerala | Rishikesh | Uttaranchal | ||
| Div | Gujrat | Krishna | Andhra Pradesh | Ropar | Punjab | ||
| Durg | Chhatishgarh | Kumarapalayam | Tamilnadu | Rourkela | Orrisa | ||
| Durgapur | West Bengal | Kurukshetra | Haryana | ||||
| Dwarka | Gujrat |