they are 3 mobile networks. Mascom, Orange and Be mobile
There are many well known mobile networks. Some include AT&T, TMobile, China Mobile, Idea cellular, MTS, Airtel, China Unicom, Orange, Axiat Group and Tele2.
Next Generation Mobile Networks was created in 2006.
Functionality of mobile systems across heterogeneous Networks
there is total 36 networks.
There are 8 mobile networks in Ireland which are: Postphone, Tesco mobile 02, Vodafone, 3, Metor, E Mobile, Just Mobile and probably more coming soon.
wireless networks accesible from your mobile phone
Most mobile phones that are unlocked or compatible with GSM networks, such as ATT and T-Mobile, will work in the USA. Some phones may also work on CDMA networks like Verizon and Sprint. It's important to check with your carrier to ensure compatibility before purchasing a phone.
Nowadays most mobile phone networks will offer you at least 3 phone options. Some of the most familiar networks that offer 3 or more phone options are Sprint, AT&T, Virgin Mobil among others.
Go to Settings>Wireless & Networks>Mobile Networks and uncheck the "Data Enabled" box.
900/1800
BSNL and Airtel