Level 3 Communications is a global fiber network provider with over 200,000 miles of fiber and 13,000 employees. It generates over $8 billion in annual revenue. Enterprise services are its main growth area and account for around 70% of combined revenue following its acquisition of tw telecom. The acquisition further strengthens Level 3's position by expanding its metro footprint and market opportunity in the enterprise sector. On a pro forma basis, the combined company has $7.9 billion in annual revenue and a net debt to Adjusted EBITDA ratio of 4.5x following synergies of $240 million from operational efficiencies and reduced capital expenditures.