A 42-year-old Dallas man has been taken into custody after he allegedly made sexually explicit telephone calls to a dozen or more women he did not know, authorities said Tuesday.

Cobb County Sheriff’s deputies took Harold Aubrey Blasingame Jr. into custody Monday, according to Sgt. Dana Pierce of the Cobb County Police Department.

Cobb authorities issued an arrest warrant for Blasingame last month after investigators traced calls made to two women in the county.

“The way he basically approached [women] is he’d randomly dial numbers, and when he got a female, that started a whole conversation with them,” Pierce said. “If they stayed on the line long enough, he tried to strike up a rapport with them, and the conversation turned to a different tone.”

In September, a woman told police she had received 73 phone calls from an unknown man. Another woman told police in November that she had gotten four obscene calls from the same number. The calls were linked to Blasingame, police said.

“We have at two victims in Cobb, and we know of at least 10 to 15 other people, other females, he’s done this to,” Pierce said. “Who knows how many victims are out there who have not come forward to tell authorities?”

Investigators know of other victims in the Woodstock area, in Helen and even out of state, Pierce said.

The suspect is being held in Cobb County Jail on two counts of making harassing phone calls, a misdemeanor, according to Cobb Sheriff's records. Channel 2 Action News reported the man faces similar charges in Cherokee and Bartow counties.

Blasingame has been on probation in Cartersville for the same type of crime, police said. In October 2009, he was accused of calling a woman's cell phone 11 times and leaving three messages on her home answering machine over three days, according to a previous arrest warrant.

-- Staff writer Alexis Stevens contributed to this report.