Time-Warner customers in Lexington found themselves unable to use their usual dialing routine to make calls for several days earlier this week.
Time-Warner spokesman Michael Hogan said Tuesday that "a technical glitch" was requiring Lexington customers to add the 859 prefix to local calls.
Lexington resident Nancy Reed had noticed the problem. Her calls were yielding a delayed busy signal when dialed normally. A 45-minute service call to Time-Warner did not immediately fix her problem.
"There was a technical problem that forced some phone customers in Lexington to dial out locally using the 10 digit number with area code when they normally only have to dial the seven digit number without the area code," Hogan said, adding they hoped to have the issue resolved by end of the day Tuesday.