Check numbers and suspicious messages
These tools run locally in your browser. They explain numbering structure and warning signs without claiming to know who contacted you.
Area Code Finder
Look up any North American area code by 3-digit number, state, or region.
Open toolArea Code Time Zones
Explore local clocks and time zones for any US or Canadian area code.
Open toolPhone Number Checker
Check format, numbering area code, and possible local time zones.
Open toolSuspicious Text Checker
See explainable warning signs in a message, privately in your browser.
Open toolPhone Number Validator
Check whether a +1 number has a plausible area code and structure.
Open toolArea Code Overlays
Learn why multiple area codes serve the exact same geographic region.
Open toolPhone Number Formatter
Get national, international, and E.164 formats.
Open toolSuspicious Link Inspector
Inspect URL structure without opening the website.
Open toolScam Recovery Guide
Find practical next steps based on what happened.
Open toolInternational Dialing
See supported ways to call North American numbers.
Open toolCountry Calling Codes
Search international country and territory prefixes.
Open toolUS Prefix Lookup
Check assigned NPA-NXX codes and their listed rate centers.
Open toolCanadian Prefix Lookup
Check CNA exchange-area and company assignments.
Open toolRate Center Finder
Search US telephone location labels and related area codes.
Open toolPhone Number Information
See a number’s public area-code assignment and possible time zone.
Open tool