Troubled telecoms company MCI posted a $43m (£27m) profit in March, against a net loss of $332m in February.
The figures come from MCI's February and March 2003 monthly operating reports, filed with the US Bankruptcy Court for the Southern District of New York.
During the month of February, MCI - formerly known as WorldCom - recorded $2.03bn in revenue, a fall on January, which it attributed to "fewer business days than the previous month". In March, the company recorded $2.1bn in revenue.
"We are continuing to make steady and measured progress against our business plan," said Michael Capellas, MCI chairman and chief executive.
"While we are on a fast track to emerge from Chapter 11 later this fall, we know there is still much more work to do, and there will be ups and downs along the way."
MCI's capital expenditures for February were $36m, while March capital expenditures were $51m.
"After spending $38bn on our network over the past six years, we are very comfortable with our projected capital spending levels on our core IP backbone," added Capellas.
IBM and Technical University of Munich team demonstrate how Shor's algorithm, which can't be cracked by conventional computers, can be solved quickly with quantum computing
Hubble Space Telescope finds superflares from young red dwarfs could strip away planetary atmosphere
Younger stars are 100 to 1,000 times more energetic than when they're older
Two of the big four supermarkets will use the system to control sales of restricted products
PUBG news and updates: November's Update #23 to bring new Skorpion pistol and changes to blue zone visibility
Genuinely useful side-arm coming to PUBG in Update #23