If you already know what number porting is and just want the practical steps, here's exactly how it works when you move your business number to VoIPninjas.
Step 1 — Gather your account details
You'll need: the phone number itself, the name on the existing account, the billing address/postcode, and ideally a recent bill. These must match your current provider's records exactly, or the port will be rejected.
Step 2 — Sign a Letter of Authority (LOA)
This authorises us to request the port on your behalf. It's a standard, quick form — no need to contact your existing provider yourself.
Step 3 — We submit the port request
We raise the request with your current (losing) provider. For most single-line business numbers this is a same-provider-class port completing within one working day, per Ofcom's General Conditions.
Step 4 — We activate before we cut over
Your new VoIP service is live and tested before the port completes, so calls simply start arriving on the new system — no dead air, no missed calls.
Step 5 — Confirm and test
Once ported, we recommend a quick test call from a mobile to confirm everything's routing correctly, and checking voicemail/auto-attendant settings are as expected.
Common delays and how to avoid them
- Mismatched details — double-check the billing name and postcode against your current invoice.
- Multi-line/complex numbers — larger number ranges or PBX trunks can take longer; we'll flag this upfront.
- Contractual lock-in — porting doesn't cancel your old contract automatically; check your notice period separately.
Want the plain-English version first? Read what number porting actually is.
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