Check
We validate the number range, current provider and the account information needed for a matching port request.
KEEP YOUR EXISTING NUMBER
Move your business number to UKDDI
Submit the details of your existing number and current provider. We will confirm portability, costs and the documents required before any transfer is started.
Request a porting checkAuthorise
You approve the order and provide the letter of authority or latest bill required by the losing provider.
Schedule
Once accepted, we agree a port date and prepare your chosen SIP, phone or divert route before cutover.
Transfer
The number moves on the confirmed date. We monitor the route and verify inbound calling after completion.
Important porting information
Do not cancel your existing service before the port completes. The account name, installation address and postcode normally need to match the losing provider’s records. Complex multi-line, hosted or broadband-linked services may require additional checks.
Submitting a request does not guarantee that a number can be ported. UKDDI will confirm feasibility and charges before accepting an order. A porting-out administration charge of £25.00 per number, plus VAT where applicable, applies when transferring a UKDDI number to another provider, and minimum-term charges remain payable.
FAQ
Business number-porting questions
Should I cancel my current service before the number port?
No. Cancelling first can risk losing the number or stopping associated services. Wait for the gaining provider to confirm the accepted port and migration instructions.
What information is needed for a porting check?
The provider normally needs the customer or business name, service address, current provider, account number, main billing number and the full list of numbers to be moved.
Does porting move my phone-system settings?
No. Porting changes the network routing for the number. Phones, PBX configuration, queues, voicemail, recordings and integrations must be migrated separately.
Can a DDI block be ported?
Often yes, but the full range, main billing number and associated services must be identified. Partial ports can be more complex and require specific checks.