They called me and after two rings my telephone was out of order for 6 hours.
If this is AT&T they should stop harassing people.
I have received an average of 3 calls a day from this number since January 1. There is never anyone there. Operator 1006 told me, in essence, she couldn't help me. And she indicated the National Call Registry couldn't help me because it was outsid my area code. If this is AT&T, I will cancel my landline with them immediately.
I believe this is their website. I emailed them and told them in a clean, firm way to stop calling my telephone number. You could try this and see if it works.
Repeated phone calls despite having been told multiple times to stop calling. This appears to be some vendor of AT&T trying to sell additional services but the repeated phone calls have reached the level of harassment and it may be time to file a formal complaint with the FTC.