Use caller ID authentication protocols like STIR/SHAKEN
Enable spam and scam call filtering on your phone and carrier account
Block and report suspicious numbers to your carrier
Register your number with national do-not-call lists where available
Use call screening apps from trusted providers
Set up voicemail and let unknown calls go unanswered
Avoid sharing your phone number publicly
Monitor your phone bill and call logs for unusual activity
Contact your carrier immediately if your number is being spoofed
Request number change or additional call protection if spoofing persists
Educate employees and family members about spoofing scams
Verify sensitive requests through a separate trusted channel