Create Account
Sunday 25th October 2026 | Telephone numbers on TPS: 13,478,761 | Telephone numbers on CTPS: 1,078,592 | Total numbers registered: 14,557,353
121prodata Ltd
01451 860805

TPS and CTPS Services

  • Home
  •  
  • TPS and CTPS Services

121prodata offers three ways to TPS and CTPS check your telephone numbers: screen them yourself online, ask us to run the checks for you, or automate screening with our API. All three services use the same TPS credits.
One TPS credit = one telephone number checked against both the TPS and CTPS registers.



TPS and CTPS Checker - Online Self-service

Screen your telephone numbers in seconds, 24/7/365. Upload a list of telephone numbers saved as a Comma Separated Value (.csv) or Text (.txt) file, or check single numbers one at a time and see on screen straight away whether a number is OK to call.

Best for: you have lists ready to check and prefer to do it yourself.

Find out more about the Checker Get started


TPS and CTPS Managed Checks

We manage the TPS and CTPS screening for you. You send us your list(s) of numbers. We prepare and screen them and send the results back to you. We just need sight of the data before confirming costs.

Best for: you are short of time, or your data needs preparing before it can be checked.

Find out more about Managed Checks


TPS and CTPS API

Integrate TPS and CTPS screening into your dialler, CRM or other application so checks happen automatically. Single number and batch (multiple number) APIs are available, and your technical team can start with our API documentation.

Best for: continuous or real-time screening built into your own systems.

Find out more about the API

Benefits of Using 121prodata

  • 121prodata is a full TPS and CTPS licensee and our register data is updated daily. So you can be certain it’s the most up to date available.
  • Your checks will screen against both TPS and CTPS registers automatically. This is recommended by the Information Commissioner's Office (ICO) and ensures thoroughness.
  • A full audit trail for all the checks you make is retained within your online account. This will help you evidence legal compliance to the ICO, if required.
  • Our Guarantee ensures that we assist you should the ICO ask for evidence of your TPS checks.
  • Costs are very competitive. You can purchase on a pay as you go basis, or minimise the cost per credit/number checked by purchasing higher quantities. There is no minimum order.
    Take a look at our Pricing, or see how TPS/CTPS royalty fees affect it.
  • For high volume users, our Large User Subscription is available for a fixed monthly cost. Please get in touch to discuss what would suit you, or see your options in our TPS/CTPS royalty fees explainer.
Please Contact Us for more details

Want to know more about the rules? Read how to stay legal when marketing by phone, or see our frequently asked questions. We also offer wider marketing, GDPR and data cleaning support.