This appears to be a spoofed number from a cell phone user subscribed to Cellco Partnership DBA Verizon Wireless - GA. Spoofed means that whoever called you "tricked" your caller ID to display an incorrect phone number. Telemarketers do this so you cannot file complaints against them.
Don't answer if you don't know the caller and don't try to opt out if they offer that option. Opting out confirms a live person is present and usually places your phone on other telemarketer lists.