Japan's NTT DoCoMo said its fourth quarter profit fell 38% year-on-year, as quake expenses and a decline in revenue cut into on the company's bottom line.
Profit for the quarter ending in March fell to 46.5 billion yen ($570.5 million), while revenue dipped 2.6% to 1.04 trillion yen.
DoCoMo reported 7.1 billion yen worth of quake-related expenses for the period.
In an earnings call, CEO Ryuji Yamada said the company plans to spend a total of 30 billion yen on recovery, including 10 billion yen for full restoration and 20 billion yen to implement new disaster preparedness measures.
Around 6,700 base stations were knocked out of commission from the earthquake and tsunami, but the company has revealed it hopes to have all base stations outside of a 30km radius of the Fukushima nuclear plant restored by May 31.
For the full year, DoCoMo's profit fell 0.9% to 490.5 billion yen, while operating revenues fell 1.4% to 4.22 trillion yen.
But operating profit grew 1.3% 850 billion yen, and Yamada said this figure would have been closer to 870 billion yen if it weren't for the earthquake.