received phone call on my cell from this number. dont know who this is

i hate calls from this number  days and night to my cell phone  never left any message  may i have to cancel  my phone  number . this is crazy

literally just called. they are really persistant

since January, the number of *spam* calls to our landline and all cells in the family has quadrupled??  No message left from 407-673-8947; didn't answer.  Have ALL #'s registered on "Do Not Call". Realizing there are caveats that shysters (& charities) can use to circumvent the registries, wonder if the calls would have increased 10-fold instead of only quadrupled without the DNC registering?? Only 'comfort zone' I can find for these ramped up calls is to be glad I'm not my grandmother: at least they're just aggravating Calls---& not Knocks on the Door, like in her day??

just got a call on my cell from FL called it back and you can not dial in.