About Fake Phone Generator

Bulk fake phone numbers in US / UK / E.164 formats. Part of the DevTools Surf developer suite. Browse more tools in the Generators collection.

Use Cases

• Mobile devs testing SMS verification flows with fake numbers
• QA teams validating international phone format parsing
• Salesforce admins populating sandbox contact records
• Load testers generating thousands of unique phone entries

Tips

• Switch between US, UK, and E.164 output formats
• E.164 format ensures compatibility with Twilio and SMS APIs
• Generate batches to stress-test phone validation logic

Fun Facts

• The ITU E.164 standard allows phone numbers up to 15 digits, but the shortest valid numbers are just 3 digits — emergency codes like 911 or 112.
• The 555 prefix (555-0100 to 555-0199) is reserved by NANPA specifically for fictional use in movies, TV, and testing, ensuring no real subscriber is called.
• The first transatlantic phone call was made on January 7, 1927, between New York and London, costing $75 for three minutes — about $1,300 in today's money.

FAQ

Are the numbers real?

No — they use the reserved 555-01XX range for US (never assigned to real lines, per FCC). UK uses 020 7946 0000–0999 (similarly reserved). Safe for test data.

What formats?

E.164 (+12125550123), US pretty ((212) 555-0123), UK pretty (020 7946 0123), and raw digits. Pick per record or bulk-export all in one format.

Can I generate internationally?

Reserved test ranges for US, UK, and Canada. Other countries don't reserve blocks as cleanly; those fall back to random digits in valid country prefixes.

Will they pass validation libraries?

Format-level yes (libphonenumber accepts them). Reachability-level no — the numbers are intentionally unreachable. That's the point for test data.