520-721-6451

We have been getting calls from a business identifed on called I.D. as NISI, phone number 520/721-6451.  When I finally asked them to take our number off their calling list, they have now started calling and hanging up as soon as I answer the phone.  Very annoying.

Just got my 2nd call from 520-721-6451. Just like last time, the caller, "Mike" claimed that (John) the ownerwas expecting his call but he has misplaced his cell phone number. I told "Mike" that I can take a message and pass it along but he refused. He continued to insist that John was expecting his call and he already had the cell number but misplaced it - he wanted that cell number!

Turns out this was a very pushy, savy salesman who isn't used to hearing "NO"
Same scenario last time but the caller used a different name to identify himself. Same scam, same pushiness and same rudeness when I wouldn't give them the cell #.
Darn they're good - if I lacked confidence then I may have fell for their tactics. No one who needs to reach (John) the owner would become so rude when I offer to pass along a message.

They are slam it through telemarketers. They sell cheap piece of [***] tools. Called me 6:50 AM on a saturday. They call and hang up. The DO NOT call list is a joke.

I also was told that he had work with the owner and that he needed his cell number. I told him that I'd get a message to the owner if he gave me a phone number. The number he gave was some poor soul that I woke up as it's early in the day. I got the real phone number and I am going to call him repeatedly just to piss him off. They do it to us, why not do it to them. All I get is a busy signal. He didn't give me the name of a company.

Just recieved a call from 520-721-6451 Have recieved this call several times.  The called is a male that states the owner has called him and he is returning his call.  He changes his name every time he calls.  When asked to leave a message he gets mad and hangs up after screaming very vulgar language every time.  We have asked several times for them to stop calling.  Not sure what company they are from.  When calling the number back it is busy.

Same message as above...wants owner cell...did the same as they did above, asked his business name six different times...caller ID said "INDUST".  He finally hung up...but I didn't get vulgar language, thank goodness, cause I would've hung up on him!!!

I agree with all of the above .  I believe this man has been harassing us by phone for more than 15 years.  I think he used to sell diamond blades by phone, now it's tools for "Richards Construction" (INDUST on caller ID).  He is always very aggressive, and then becomes rude. Is there anything that can be done?

same issue here these guys wont take no or don't call me or ive been even more rude lately .... and they think its funny and call and hang up ....bad business people .......they sell junk ......

Just received a call from Maurice Johnson, didn't catch the full name of the company, but it had industrial in it.  Male was very persistent and wanted cell phone number of owner.  When I would not give that he wanted the number to text him.  Hmmmm, let me fall for that one.  He got very angry when I would not give him number and wanted to know why.  I told him the owner would call him back but he said he couldn't be bothered at work. I told him that I guess we wouldn't do any business with him and hung up while he was still talking.  Called number back and the guy insisted he was calling about a job.  Said he had not heard of the National Do Not Call Registry.

Called asking for my boss. When I asked who he was he mumbled a name really fast. I asked him to repeat his name and he said he would call back.

Awesome info, now blocked.

the # 520-721-6451 showed up on our caller id and nationwide indu.