If this approach were to be taken, the Welsh Government would need to identify the companies operating mobile telecom networks which would be designated on the central rating list.
Petai hyn yn cael ei wneud, byddai angen i Lywodraeth Cymru nodi'r cwmnïau oedd yn gweithredu rhwydweithiau telathrebu symudol a fyddai'n cael eu rhoi ar y rhestr ardrethi ganolog.