The Telecommunications Regulatory Authority (TRA) was established by Legislative Decree No. 48 of 2002 promulgating the Telecommunications Law. The TRA is an independent body and its duties and powers include protecting the interests of subscribers and users, and promoting effective and fair competition among established and new licensed operators.
No one owns the numbers. Service providers assig numbers, for subscribers based on their application for a service. The number may be re/allocated for another subscriber if it is unused currently. Please refer to your service provider for further clarification.
No. however, your provider may use your information to announce or market the enhancements/improvement to the services you already use. For example, if you purchase a basic local telephone service from a service provider, it does not need your approval to inform you or to try to sell you another service such as voice mail or an internet package by the same provider.
But they are restricted to provide any third party with your information for marketing purposes.
You can keep your number and port to another operator by following the instructions provided in http://www.ilovemynumber.bh/.