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UKDDI

Data Processing

How UKDDI collects, uses, stores and protects personal data when providing business telephone numbers and telecom services.

What we process

Customer and business contact details, billing and order information, telephone-number allocation and porting details, technical service logs where required, support communications and relevant marketing preferences.

Why we process it

We process data to provide services, perform contracts, meet legal and regulatory duties, secure our systems, prevent fraud and pursue legitimate business interests. We do not sell personal data.

Sharing and retention

Relevant data may be shared with telecom carriers, payment providers, hosting and infrastructure suppliers, professional advisers or public authorities where necessary. We retain information only as long as needed for contractual, accounting, regulatory, fraud-prevention and legal purposes.

Your rights

Individuals may have rights of access, correction, erasure, restriction, objection and portability under UK data-protection law. Our Privacy Notice provides further detail.

Last updated: 19 August 2026

UKDDI

UK business phone numbers delivered to your SIP platform, a hosted SIP phone, or any UK landline or mobile.

Popular area codes

Aberdeen 01224Aberfeldy 01887Abergavenny 01873Aberlour 01340 All UK phone numbers

Delivery

SIP trunk Hosted SIP phone Landline/mobile divert Buyer guides Phone systems guide

Company

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© 2026 THIRTY NINE DEGREES LTD · Company 11715128 Prices shown exclude VAT unless stated. UKDDI v27.0.0 · Build 20260812.1
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UKDDI sends limited cookieless Google Analytics measurements to understand overall website use. These measurements do not write analytics cookies or create remarketing audiences. Selecting Accept analytics and ads also enables optional analytics and advertising cookies for fuller reporting and relevant advertising. We do not send customer names, email addresses, billing addresses or routing details to Google. Read our privacy notice.