Extraction of crude petroleum
On shore extraction of crude petroleum
Sea and coastal water transport
Activities of basic telecom services: telephone, telex and telegraph (includes
Maintenance of telecom network
Activities of the cable operators
Activities of providing internet access by the operator of the wired infrastructure
Activities of Internet access by the operator of the wireless infrastructure
Activities of maintaining and operating pageing, cellur and other tetecommunication networks
Activities of other wireless telecommunications activities
Satellite telecommunications activities
Activity of Internet access by the operator of the satellite infrastructure
Other satellite telecommunications activities
Other telecommunications activities