TPS and CTPS Lookup Service

Check calls against the TPS register and avoid getting fined

The Telephone Preference Service is the offical UK 'do not call' register for landline and mobile numbers. It allows people and businesses to opt out of receiving sales and marketing calls. The CTPS is the same, but for businesses to opt-out.

If you are a company that regularly makes sales calls, you need to be sure that the number you are calling is not on the TPS or CTPS register. If it is, and you are reported, the ICO can impose heavy fines - on not only the business, but the directors themselves. This law has teeth! You can see what fines have been issued on the ICO website.

What is the buzzbox TPS lookup service? 

We provide a flexible API that allows you to look up any UK mobile or landline number against the TPS register and immediately be made aware if it is on the TPS register or not. 

  • Incredibly easy to use API
  • Interactive dashboard with full reporting
  • Checks against TPS and CTPS registries
  • Dashboard with reporting and CSV export
  • We will help you integrate the service into your PBX or phone system*
  • Simple, flat rate pricing

If you're not technical, don't worry, we will help with integration. But if you are a developer here's a quick example:

And a response will be given eg.


* May require consultation and additional support. Asterisk and FreePBX are natively supported.

API documentation

Download the API in PDF format here: TPS Lookup API Documentation

Order now

Choose the plan that best suits your organisation below. Don't worry if you go over your limit, we won't cut you off unlike some providers, we will simply advise you that it's time to upgrade to the next plan.




For 1-20 calls per day

For 21-500 calls per day

For 500-20000 calls per day

Once you have placed your order, we will create your account and email you the credentials to get going with our API.  If you'd rather speak to us first, do give us a call on 0330 122 2230. All accounts include a free 14 day trial period. 

* Prices exclude VAT. Use of our TPS Lookup Service is provided on a best efforts basis. buzzbox Telecom, Spice New Media Ltd and third parties are indemnified against claims made resulting from the use or misuse of the service.

We have been absolutely thrilled with the service provided by buzzbox. The system was set-up seamlessly and it has allowed us to dramatically improve the efficiency of our service whilst reducing our call costs. The system is easy to use and very flexible and the customer service has been first class, highly recommended!
Birchfield Dental Practice

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