Official Resources

These official sources support the site’s data and safety guidance. Open them independently when you need current instructions.

• NANPA NPA reports — area-code assignments.
• FTC spam-text advice — recognizing and reporting texts.
• FTC Do Not Call FAQ — registration and reporting.
• FTC ReportFraud — fraud reports.
• IdentityTheft.gov — identity-theft recovery.
• FCC unwanted calls and texts guide.
• Apple iPhone call screening and blocking.
• Google Phone app blocking.
• ITU dialing procedures.