Home Telecommunication Telecom Exchange
Sample Data Format
 Secondary Switching Area-wise Number of Electronic Telephone Exchanges Setup by BSNL in Tamil Nadu
(As on 31.03.2008) 
 Secondary Switching Area (SSA)  Urban  Rural  Total 
 Coimbatore       
 Cuddalore       
 Dharmapuri       
 Erode       
 Karaikudi       
 Kumbakonam       
 Madurai       
 Nagercoil       
 Nilgiris       
 Pondicheri       
 Salem       
 Tanjore       
 Tirunelveli       
 Trichy       
 Tuticorin       
 Vellore       
 Virudhunagar       
 Circle Total       
 Metro Chennai       
 Chennai       
 Circle Total       
 
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