Beware! Do not trust this number! I keep getting called and when I call back they want all my ADT information. If they called me why wouldn't they have it.

I called ADT from their main number listed on my bill and they said they have not been trying to reach me and that this is a scam to try and get your information.

It is a scam.  My girlfriend took a call from this number yesterday.  Instead of calling back the number they gave her, I called the number I have for ADT (a different number).  The ADT representative told me there was nothing wrong with my account.

Turns out ADT is having a problem with a 'third party" making calls to their customers.  Whoever is calling is not with ADT.  If you have any doubts, call ADT on a number you get from their website, or the number on your alarm panel.

My girlfriend got a call from them yesterday.  Instead of calling back on the number they left, I called the 800 number on my alarm panel.  ADT had not called me.  After a couple of minutes where the representative determined there was nothing wrong with my account,

Turns out ADT is having a problem with people claiming to be with ADT making calls to customers.  The ADT representative told me this was a scam.

got a voicemail from them at work indicating they are ADT, but whenever we get calls from them, my husband it first on the list, then my cell phone (not even sure they have my work #).  i called before business hours and got their voicemail about being open 7am to ? (but the first time I tried, I just got a message saying a verizion customer ....) weird

This number calls our company every day at exactly 10:12 a.m. and just says to call this number.  When you do, it rings twice and hangs up automatically.  Been going on for months.

Who are they? Why they are calling me every single day?

its ADT Home Security Systems
BILLING dept

Its Brinks Security (i.e. home security systems). They call me either to report an alarm on my home or to tell me that my monitoring payment is late.