it may or may not end because it is too long
- Deutsche Telekom - m:tel - BT Group - MetroPCS (Metro by T-Mobile) - MEO - Vodafone - Orange Group - era group - Movistar - Tracfone Group - TIM Group - AT&T - O2 - Verizon - Pelephone - EE - OTE (part of Telekom) - Sprint (part of T-Mobile US)
