(805) 236-8583 is not an official Norton support number.
Where/How did you find that number?
The 805 area code serves California (Ventura, Santa Barbara, San Luis Obispo, and surrounding areas), but that says nothing about the actual origin of the call because of number portability and spoofing.
If you need Norton support, the safest approach is to start from the official support page: Official Norton Support. That page will provide the appropriate phone or chat options for your region.
Care to share your geo-location/country?
Community members have shared 1-800-745-6061 or 1-800-745-6034 as Official Norton Support – US & Canada