Switching provider shouldn't mean a new number. Whether you're porting a single home landline or handling bulk number porting for a whole office of DDIs, our team manages the entire telephone number port — checks, paperwork and go-live — from start to finish.
Telephone number porting — sometimes searched for as number portability, porting a telephone number or simply "porting" — is the process of moving your existing phone number from your current network to a new provider, so you keep the same number your customers, friends and family already know. It applies whether you're switching an entire office over to VoIP, porting landline numbers after a house move, or consolidating numbers after a business merger.
In the UK, number portability is protected by Ofcom, which means your losing provider is required to release your number once you've given your new provider the go-ahead. You can read more detail in our guide to how phone number porting works, or our walkthrough on transferring a PSTN number to VoIP if you're moving away from a traditional analogue line.
With the UK's ISDN and PSTN switch-off well underway, porting numbers onto a cloud-based system has become the standard route for households and businesses alike — it's usually simpler, and often faster, than people expect.
Getting a new number is easy. Keeping your old one — while switching everything behind it — is what actually protects your business or household from disruption.
Customers, suppliers and family already have your number saved. Change it and some calls simply never reach you again — porting means nobody has to redial.
No reprinting signage, stationery, vehicle livery or packaging, and no chasing directory listings, invoices or your website to update a number everywhere it appears.
Google Business listings, online reviews and click-to-call ads are often tied to your number. Porting keeps that history and trust in place instead of starting again.
Moving your ported number onto a VoIP line typically costs less each month than a traditional line rental and call charges — see the comparison below.
Once your number is with a VoIP provider, it can gain call routing, voicemail-to-email, mobile apps and call recording — features a traditional analogue line can't offer.
Number portability is a legal right in the UK. Your losing provider can't refuse to release an eligible number once you've asked your new provider to port it.
Once your number is ported, it runs on a single monthly plan — no separate line rental, and no per-minute call charges to worry about.
That's a potential saving of £380+ a year on a single line — and the saving multiplies across every number on a multi-line business port. Figures based on BT's standard published tariffs as of September 2026 (line rental plus its Unlimited Minutes call add-on); your own costs may vary by provider, contract and location.
The same process handles a single home landline or a bulk business port — the only difference is the detail we need from you at step one.
Fill in the short form below. Residential ports just need your current number and a few details; business ports also cover how many numbers and users are involved.
We contact your current (losing) provider to confirm the number can be ported, and arrange a Letter of Authority (LOA) where one's needed.
You'll get a confirmed date in writing, so you know exactly when the switch happens. Your existing line stays live right up until then — don't cancel it early.
Calls route through to your new T2K service automatically on the agreed date, typically with well under a minute of interruption.
Bulk number porting is one of the most common requests our team handles — whether that's a handful of DDIs for a small office or an entire number range across several sites. We coordinate directly with your losing provider so nothing falls through the cracks.
Tell us a little about what you need and we'll come back to you with next steps and a porting date. It takes about two minutes.
Porting isn't only for people moving house. We regularly handle business number porting for companies switching phone systems, consolidating offices, or simply looking for a better deal without losing the number their customers already dial.
Sectors we work with most often for multi-line and bulk number ports include:
T2K Voice & Data supports residential and business customers right across the UK. Wherever your number is registered and wherever you're switching from, the same team, the same process and the same porting timeline apply.
Start your porting request below, or give our team a call if you'd rather talk it through first — either way, there's no obligation.
