Vodacom announces the interim results today for its first full six months after its unbundling from Telkom.
Analysts predicted that the mobile operator would take a knock in subscriber numbers and revenue due to Rica, which MTN cited as a contributor to its fall in subscriber numbers.
Between June and September MTN lost almost 5%, or 750 000, of its SA subscribers.
Spiwe Chireka, ICT analyst at Frost & Sullivan, said Vodacom would shed subscribers "or at best remain stagnant" due to consumers' reluctance to comply with Rica.
She said: "Vodacom's markets in South Africa and the Democratic Republic of Congo will be depressed, but for different reasons. In the DRC, Vodacom has been losing market share to new entrant Tigo Telecoms."
She said out of the other markets Mozambique and Tanzania would deliver a positive net result, while Swaziland and Lesotho were too small to be significant.
Dobek Pater, Africa Analysis director, said Vodacom would be less affected by Rica than MTN.
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