This number is scammers. I could hear a call center when I called it back, got a "hello" from the man who answered. I said I'd been receiving calls from this number and wanted to know who they were, I was then hung up on.

'Didn't recognize the # and answered "Thank you for calling Gun Charities of Florida, may we please get your full name for a donation?"  They hung-up and haven't called back.