How to Switch Mobile Networks Without Losing Your Number

<h2>How to Switch Mobile Networks Without Losing Your Number</h2>
<p>Switching mobile networks used to feel like a hassle. But in the UK, Ofcom regulations make it genuinely straightforward — and keeping your existing number takes less than a minute to set up.</p>
<p>Here is everything you need to know.</p>
<h3>The PAC code — your key to switching</h3>
<p>A PAC (Porting Authorisation Code) is a short code that allows your phone number to be transferred from one network to another. It is free to request, arrives instantly, and is valid for 30 days.</p>
<p>To get your PAC code, simply text <strong>PAC</strong> to <strong>65075</strong> from your current phone. You will receive an automated reply within seconds with your code and its expiry date.</p>
<p>That is it. No phone calls to customer services. No waiting. No awkward conversations about why you are leaving.</p>
<h3>What happens next?</h3>
<ol>
<li><strong>Order your IQ Mobile SIM</strong> (£10, physical or eSIM)</li>
<li><strong>Activate at my.helloiq.uk</strong> — during activation, choose &quot;keep my existing number&quot; and enter your PAC code</li>
<li><strong>Choose your plan</strong> — from £7/month, rolling monthly, cancel any time</li>
<li><strong>Your number transfers</strong> on the next working day</li>
</ol>
<p>During the brief switchover (usually a few minutes), both your old and new SIM may be temporarily unavailable. This is completely normal.</p>
<h3>Do I need to cancel my old contract first?</h3>
<p>No. In fact, it is better to port your number first, then cancel your old plan afterwards. This ensures your number is safely transferred before you notify your old network.</p>
<p>Once the port is complete, contact your old network to cancel. Under Ofcom rules, they must process your cancellation within one working day.</p>
<h3>What if I am still in contract?</h3>
<p>You can still port your number — but you will need to pay any early termination charges on your old contract (typically the remaining months&#39; line rental). Check your contract terms or contact your current provider for a final bill estimate.</p>
<p>If you are already out of contract (month-to-month), you can switch with no exit fee at all.</p>
<h3>Tips for a smooth switch</h3>
<ul>
<li><strong>Keep your old SIM active</strong> until the port completes. Do not cancel your old contract or let the SIM expire before your number has transferred.</li>
<li><strong>Keep your PAC code safe.</strong> It is only valid for 30 days, so complete the switch within that window.</li>
<li><strong>Same-network texting:</strong> you can also text INFO to 85075 to check your contract end date and get an estimated final bill.</li>
</ul>
<h3>Why switch to IQ Mobile?</h3>
<p>No contract. No exit fees. The best UK 5G network from £7/month. UK-based support when you actually need it.</p>
<p><a href="/shop/sim-only">Get your SIM for £10 →</a></p>