How to Generate Phone Numbers Safely for Testing

Why you shouldn't use live subscribers

Regulations such as GDPR, CCPA, and carrier acceptable-use policies can penalize teams that reuse production data. Fake data also prevents accidental SMS spam or robocalls.

Step-by-step workflow

1. Clarify which geography, format, and quantity your test suite requires.
2. Open the Random Phone Number Generator, pick the closest preset, and fine-tune quantity/format/prefixes.
3. Generate with uniqueness enabled so regression suites avoid flaky assertions.

Export and share

Use TXT for quick copy/paste, CSV for spreadsheets or Postman data files, and JSON for API mocks. Keep the dataset in your repo or shared drive with a clear “test only” label.

Pro tips

• Pair each dataset with a README so newcomers know how it was generated.
• Refresh the pack monthly to avoid overreliance on the same digits.