- Number of Telephones Exchanges and Telephones in Kolar District of Karnataka (As on 31.03.2022)
- Number of Telephones Exchanges and Telephones in Kolar District of Karnataka (As on 31.03.2021)
- Number of Telephones Exchanges and Telephones in Kolar District of Karnataka (As on 31.03.2020)
- Number of Telephones Exchanges and Telephones in Kolar District of Karnataka (As on 31.03.2019)
- Number of Telephones Exchanges and Telephones in Kolar District of Karnataka (As on 31.03.2017)
- Number of Telephone Exchanges in Kolar District of Karnataka (2016-2017)
- Number of Telephone Exchanges in Kolar District of Karnataka (2015-2016)
- Number of Telephone Exchanges in Kolar District of Karnataka (2014- 2015)
- Number of Telephone Exchanges in Kolar District of Karnataka (2013-2014)
- Number of Telephone Exchanges in Kolar District of Karnataka (2012-2013)
- Number of Telephone Exchanges in Kolar District of Karnataka (2011-2012)
- Number of Telephone Exchanges, Mobile Phones and Internet Connections in Kolar District of Karnataka (2010-2011)
- Number of Telephone Exchanges in Kolar District of Karnataka (2009-2010)