Has called me from 971-313-8549, 971-313-8228, and 971-313-8255; call back numbers: 877-647-3044 and 888-318-7041.
I will say that I've recently unfortunately had to deal with a few collection agencies, and as far as this one goes, I don't have 9 calls a day from them, and they don't seem rude. They have called as often as once every 2 days or as sparse as once every 2 weeks.
I admit I'm in a hard spot right now so I honestly don't mind agencies calling - it's my debt, and I hope to pay as soon as I can and just get it in the past. But the agencies that are rude and distasteful and sometimes downright awful...why would they ever think someone would pay them anything, whether they owe it or not? I hope my debt stays with this co., so when I am able to pay, I can deal with what so far seems to be a decent agency.