List of Andhra Pradesh telecom companies

Land line numbers are 8 digits long, and GSM / CDMA cellular operators are 10 digits.

Landline Operators

 * BSNL: The oldest operator in the telephone business, owned by Bharat Sanchar Nigam Limited (BSNL). BSNL phone numbers start with the prefix '2'. (27, 23)
 * Tata Indicom: Formerly Tata Teleservices. Numbers start with '5'.
 * Reliance Infocomm: Reliance Infocomm is part of the Reliance - Anil Dhirubhai Ambani Group. Numbers start with ‘3’.
 * Airtel: Newest of the landline operators. Airtel Numbers start with ‘4’.

GSM Operators

 * Airtel: Airtel is the largest GSM operator. Airtel is the most prominent of all the GSm networks in Andhra Pradesh. Airtel is owned by Bharti Group. Airtel numbers start with '9849' or '9949'.
 * Hutch: Hutchisson Essar group owned Hutch has a pretty good user base because of the many attractive packages it offers. Hutch numbers start with '9885' or '9985'.
 * IDEA: Idea Cellular Limited is part of Birla[Previously TATA & AT&T were also partners] Limited. IDEA numbers start with ‘9848’ or ’9948’.
 * Cellone: Bharat Sanchar Nigam Limited’s mobile arm Cellone has a very good rural and sub-urban user base. Pre-paid cards are sold as Excel. BSNL numbers start with ‘9440’.

CDMA Operators
CDMA make use of Wireless Local Loop.
 * Reliance Infocomm: Numbers start with '93' and are 10 digits long.
 * Tata Indicom: Tata Indicom, like Reliance also offers CDMA connections. Tata now has operations on a national scale. Numbers start with '924'.

Tata(by the name ‘Walky’) and Reliance(by the name ‘Fixed Wireless Phone’) also offer a land line hybrid phone. The phone is like a normal instrument, but instead of the phone cable it has an antenna which connects to the network like any mobile phone. Internet connection also is possible though this via dialup and using broadband. The call rates are also comparable to Landline rates.