How do I know what's happening with my port?

Every status change pushes to your portal dashboard + email automatically: submitted to losing carrier, accepted, scheduled, completed. No need to ring us for updates — you'll know before our support team would. If something fails (typo on the account number, mismatch on the losing carrier side), the portal flags it and tells you exactly what needs fixing.

Does my number actually stay live during the port?

Yes. Mobile ports complete in a ~2-hour window where your number briefly stops working then comes back on the new network — typically between 8am and 12pm, scheduled in advance. VoIP / landline ports complete overnight (2am–6am) on the date you picked, so business calls aren't affected. You'll never have a working-day outage.

Can I keep my voicemail messages / contacts?

Voicemail messages don't transfer between carriers — they live in the old carrier's network. Listen to or save anything important before the port date. Your phone's contacts list stays — that's on the device, not the SIM, and not affected by porting.

What's One Touch Switch?

Ofcom's 2024 rule for mobile + broadband porting — the new carrier (us) handles the whole switch. You don't need to call your old carrier to cancel; we do it. For mobile, you still need to text PAC to 65075 yourself (Ofcom mandates this for fraud protection), but everything else is on us.

I'm mid-contract with my old carrier — can I still port?

Yes. Porting is your statutory right under Ofcom rules. The old carrier might charge an Early Termination Fee (ETF) for ending the contract early; that's between you and them, separate from the port. We'll port the number regardless of contract status.

Multiple numbers at once — bulk porting?

Yes. For business porting 10+ numbers, we run batched ports of 50–100/day during your operational quiet hours. Single port reference, weekly progress emails. 500-number business estate typically completes in 7–14 working days.

Mobile: free (Ofcom One Touch Switch, the gaining-carrier fee is typically zero and we cover it either way). VoIP / landline / 0330 / 0800: £12 ex VAT per number submitted. The fee applies per port, including bulk migrations — we don't waive it. You'll see it itemised on your first invoice.

Can I port a number from another country?

No — UK number porting is UK-only. If you've got a US / EU / international number, that stays with its existing carrier. You can have a UK number alongside it that we host, and forward calls between them if useful.

Help · Number porting

Keep yournumber.

Mobile: next working day. VoIP: pick your own date. Zero downtime either way.

Whatever number you've got — mobile, landline, 0330, 0800 — bring it across when you switch. Free for mobile (Ofcom One Touch Switch); £12 ex VAT per number for VoIP / landline / 0330 / 0800. VoIP porting is fully self-service via portal.giant.net.uk: enter the number, pick your cutover date in the calendar, get automated status updates at every stage — no phone calls, no LoA paperwork, no chasing for progress. Porting a landline lands on our digital home phone product; the broadband side of the move is handled separately by One Touch Switch, which we kick off automatically at order.

Start a port in the portal See the flow

GIANT

FULL FIBRE

GIANT

FULL VOLUME

GIANT

LIVERPOOL

GIANT

8 GIGABIT

GIANT

ONE TOUCH SWITCH

GIANT

8 GIGABIT

GIANT

LIVERPOOL

GIANT

FULL VOLUME

GIANT

FULL FIBRE

GIANT

ONE TOUCH SWITCH

GIANT

8 GIGABIT

GIANT

LIVERPOOL

GIANT

FULL VOLUME

GIANT

FULL FIBRE

GIANT

£0

To port a mobile number to Giant. VoIP / landline £12 ex VAT per number.

Mobile ports run free via Ofcom's One Touch Switch — we cover the (typically zero) gaining-carrier fee. VoIP / landline / 0330 / 0800 ports carry a £12 ex VAT submission fee per number.

See process

01Two flows

Mobile and landline work differently.

Mobile uses Ofcom's One Touch Switch — fast, simple, you text PAC and we do the rest. Landline / VoIP follows the older multi-day Openreach gaining-line process.

Timeline

Next working day

Mobile

Cost: Free (we absorb)

1
Order with us
Pick a tariff, eSIM or plastic SIM. At checkout, choose 'port my number'.
2
Request a PAC
Text PAC to 65075 from your existing number. Old carrier returns the PAC code free, within minutes.
3
Share PAC with us
Forward the PAC + your existing mobile number to us. We submit the port to your carrier same day.
4
Port completes
Your number transfers between 8am and 12pm the next working day. Old SIM dies, new SIM rings on your number.

Timeline

Pick your own date

Landline / VoIP

Cost: £12 ex VAT per number

1
Start in your portal
Log into portal.giant.net.uk → Number porting → New port-in. Enter the number, current provider, and account number. No paperwork, no Letter of Authority to print and sign.
2
Choose your cutover date
Calendar in the portal lets you pick the working day that suits — first available, end of your existing contract, after the bank-holiday weekend, whenever. You're in control of the date.
3
Automated updates
Status changes (submitted, accepted by losing carrier, scheduled, completed) push to the portal + email automatically. No need to ring us for progress — you'll know before we would.
4
Port completes
Number transfers overnight on your chosen date (2am–6am). Old line dies, our network picks up calls. No downtime visible to inbound callers.

02Porting out

Leaving us? No friction.

Ofcom rules: we can't make leaving harder than joining. Get a PAC (mobile) or STAC (mobile, no port) from us free, any time. Same flow in reverse for landlines.

Mobile PAC

Text PAC to 65075 from your Giant number — code arrives in seconds, free, valid 30 days. Hand it to your new carrier.

Mobile STAC

Text STAC to 75075 if you want to leave but not port the number (i.e. just terminate). Same instant flow.

Landline port-out

Your new carrier submits the port; we approve within 24h. Standard 8–12 day Ofcom timeline applies.

0

Working-day outages during a port. You schedule it around your business.

VoIP ports run overnight (2am–6am) on the date you pick in the portal. Mobile ports run morning-of (8am–12pm window). Inbound callers don't notice either way.

Open portal

03FAQ

Real questions, honest answers.

Yes — and most carriers don't let you. Inside portal.giant.net.uk → Number porting, the calendar lets you pick any working day from the earliest available slot onwards. Common reasons people delay: contract end with the losing carrier, end of month for clean billing, after a planned office move, after a bank-holiday weekend. Once the date's set, the port runs overnight on that date automatically.

We do the breaking up. You keep the number.

Start a port at order time, or any time after. Single number or bulk estate — same process, same team.

Start a port All help topics 0330 043 0056

Zero downtime · Ofcom-compliant · Pick your own port date