Frontier Communications has blamed its takeover of another company for widespread phone, Internet, and television outages in Florida and two other states.
At a legislative hearing, the company says it has inherited corrupt data in its acquisition of certain Verizon businesses.
The acquisition last month carried a price tag of $10.5 billion.
A regional president says Frontier expects to resolve problems from the changeover by next weekend, but customers in three states keep reporting problems.
Florida’s attorney general has received over 1,300 complaints about Frontier, and the state’s department of agriculture and consumer services has received over 400.