All Pro tools
ProCloud

Bulk Phone Validator

Validate phone lists: country, line type, and E.164 formatting — up to 1000 per batch.

What it does

  • Validity, country and line type (mobile/landline)
  • Clean E.164 formatting
  • Default country for numbers without a +code
  • Duplicate detection
  • Export CSV or copy valid E.164 numbers

How it works

  1. 1Paste your list — one number per line (up to 1000).
  2. 2Set a default country for numbers without a +code.
  3. 3Run validation.
  4. 4Export CSV or copy the valid E.164 numbers.

Use cases

  • Normalising a customer phone list to E.164
  • Filtering mobile vs landline numbers
  • Cleaning SMS campaign recipients

Try Bulk Phone Validator

Checking access…

Frequently asked questions

How many numbers can I check at once?
Up to 1000 numbers per batch.
What is E.164?
The international standard format for phone numbers, e.g. +14155550123 — what SMS and voice APIs expect.
Does a valid result mean the number is active?
No. Validation checks the number against the numbering plan and formats it; it does not call the number or confirm ownership or service status.