Glass Mountain Capital, debt collector in Illinois. they also uses. I also got a lot of "out of area" calls too.

312-239-3173
312-878-8611
847-348-8160
312-878-8614
312-878-8615
312-239-3153
773-432-4735
815-315-4264

Glass Mountain Capital
1930 Thoreau Drive STE 100
Schaumburg Illinois 60173

Phone 877-214-0276
Fax 847-925-1585