The loss compared to a profit of $45 million in the same period last year, assuming the acquisition of tw telecom occurred January 1. The operator previously reported six consecutive quarterly profits.
It did, however, see revenue grow slightly in the quarter to $2.06 billion, compared to $2.03 billion last year.
"Level 3 continued to drive profitable growth, as evidenced by our expanding margins," said Jeff Storey, president and CEO at Level 3. "We executed on our integration plans, while maintaining our focus on the customer experience. Beyond integration, we are also making investments to position the company for long-term growth by advancing our product offerings, expanding our network footprint and simplifying our operating environment."