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Bulk Phone Number Validation Service | Live Number Testing | Telephone Verification | Selectabase

NumberCheck Bulk Phone Number Validation

As well as working directly with end-users, Selectabase now offer a wide range of solutions suitable for resellers or associated companies involved in the marketing process. These include printers and copy-shops, direct mail and advertising agencies, marketing consultants, small business advisers, and other intermediaries.

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Rated 5 out of 5 stars based on 46 of our latest Google Reviews.

Live Line Status

Originally developed to solve a problem for a large telecoms operator, the landline verification service performs a “sniff test” to identify the status of a landline telephone number without actually dialling the number. We guarantee that there will be no silent or abandoned calls – landlines are checked automatically with no disturbance.

Our report includes details on the following line conditions:

  • Live: The number is working
  • Dead: The number does not connect
  • Changed Number (announcement message): The number has changed
  • Invalid: The number is not a valid phone number

Fast, efficient and fully compliant

This unique STEALTH technology guarantees the service is fast, accurate, legal and fully compliant with industry best practices. Subscribers are completely unaware that their telephone line has been passively “tested” and the methods we use ensure they are NEVER denied service (i.e. Dial Tone) at ANY stage. All checks conducted are done so with the full carrier approval.

  • The telephone verification service is compliant with OFCOM regulations and fully adheres to direct marketing guidelines.
  • Our pricing is fair and simple. The more numbers you check the lower the rate!
  • Only £139 per list and then a cost per 1,000 numbers submitted.

Quick Enquiry

Please enter your brief details below so a member of our team may contact you to discuss your requirements. Start building your list and then register online to receive 25 free list credits in your account!

Quick Enquiry

We may respond to your enquiry by email. If you do not wish to receive emails from us about our services tick here
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    We handle your information in accordance with our Privacy Policy

    This service is available during office hours between 9am and 5:30pm Mon-Fri