All you need to about area code 648

Area code 648 is another area code enlisted in the unassigned area codes by NANPA. It is labeled as a general-purpose code, which does not represent any geographical location in North America.
NANPA can use this unassigned area code in the future for any required purpose, but currently, it is of no use. So if you are getting calls or texts from such numbers starting with the phone prefix 648, those must be scam calls. And it would be best if you tried to block and report those numbers to local authorities for a proper investigation.

Also read: area code 768, Beverly Hills area code, 494 area code, Palm Springs area code