Got a card through the USPS stating "Call Now! 972-449-0434". The card gives instructions to "Reference the package ID # (NNH-followed by six digits). Only says "Our office is attempting to reach you" and requires a signature for the "package".
If this is so important, then list the name of your office/company, send the information in a proper stamped envelope, and denote in some way what this "package" contains.
Stop bothering people with your idiotic attempts to pick up your junk.

Not USPS.  If you call that number they ID themselves as "Impact Delivery".   Somehow or another a delivery company for '12 separate delivery companies'.  Right. Not a delivery company at all.

History on 800notes.   Basically a water testing company.  Trying to sell you some sort of filtering system.  Simply ignore and block the calls.

Got card in mail to call 972-449-0434. "Our office is attempting to reach you. " please contact us immediately to arrange a delivery time. Had ID # NNH....... (6 other #).

Obvious scam!  Send card in mail wanting to have you sign for a package.  No company name or anything on the card.  Not going to call for sure!  Headed straight to the trash!  Stop bothering people with your crap!  Anyone can tell it is not the post office and it's a total SCAM!

Got the same card in the mail.  DO NOT CALL!