Get Honest Mobile PAC code to keep number & switch to O2 network

Keep my Honest Mobile number

How do I get a PAC code from Honest Mobile & transfer my number to O2?

You can contact Honest Mobile online to request your PAC (Port Authorisation Code) or manage your SIM through the Honest Mobile app. Alternative you can use the switch-by-text service to get your PAC code quickly and automatically through SMS.

If you wish to use the 'text-to-switch' service, simply send the SMS text PAC to 65075 free from your Honest Mobile SIM to get your Honest Mobile PAC code by text message and begin the porting process.
Alternatively, you can text STAC to 75075 if you want to switch and get a new O2 number instead of keeping and transferring your Honest Mobile number.

  • Honest Mobile will provide your PAC (Porting Authorisation Code) either by SMS text message, email, over the phone if you contact them directly, or through an online Honest Mobile login.
  • A PAC number is valid for 30 days. If you don't use it within thirty days it will expire and you will need to request a new one.
  • Your Honest Mobile account will remain active until your number has been ported over to your new O2 network. After the transfer is complete, your old Honest Mobile account will be automatically closed.

While you wait to get your PAC code from Honest Mobile, find the best O2 online offer for you. Many of these exclusive mobile phone & SIM only deals are only available online, directly from the network providers listed here.

Got your Honest Mobile PAC code?

Provide your PAC code from Honest Mobile to O2 who will then be able to port your existing Honest Mobile number. They will tell you what day the transfer is due to take place (usually within 48 hours).

Important: Do NOT cancel your SIM only or mobile contract before switching, otherwise you may lose your current phone number and be unable to port it over. Once you give O2 your Honest Mobile PAC code, your old Honest Mobile billing account will be closed automatically when your mobile phone number is successfully ported over.

Note: Topup credit on Pre-Pay / PAYG (Pay-As-You-Go) accounts cannot be transferred over and so any remaining credit balance or bundles will be lost after the switch is complete. If you have any top-up credit left, one good option is to donate your remaining balance to a charity via SMS text message before porting your number.

Transfer my number to O2

How to switch to O2 and keep my Honest Mobile number?

First get your O2 deal and activate your new SIM card.

Once you have done that, get the following information ready for the step-by-step instructions:

  • Your old Honest Mobile mobile phone number that you want to keep.
  • The Honest Mobile PAC (Porting Authorization Code) from your previous network.
  • The expiry date of the PAC number (valid for 30 days from the date of issue).
  • The temporary mobile number from your new O2 SIM card activation.
  • You may also need the new O2 SIM card serial number found on the back as an additional security check.

Contact O2 customer services with your PAC code and let them know you wish to transfer your old number to O2. You can reach them either from your 02 mobile phone on 4445 for Pay As You Go, or 202 for Pay Monthly contracts.

If you are calling from a landline: dial 0344 8090222 for Pay As You Go customer Service or 0344 8090202 for Pay Monthly customer Service.

Alternatively, you can fill in the online O2 form and they will contact you when the transfer is complete.

Note: You may lose network service for a short period on the day of transfer. If this happens, turn your phone off and on occasionally, until you see the O2 signal on your mobile phone screen. This will indicate that the transfer is complete, and you can now use your old phone number in your new mobile network provider.

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Compare O2 vs Honest Mobile

About O2

O2 is a mobile network operator and telecommunications services provider in the United Kingdom, under the company name of Telefonica UK Limited. The company was originally formed in 1985 as Cellnet by the BT Group and was one of the earliest mobile phone networks to launch in the UK, and later rebranded as O2 UK.

02 is one of the largest network operators in the UK and provides 2G, 3G, 4G and 5G services to millions of customers in the United Kingdom, as well as to other mobile virtual network operators (MVNO).

O2 Network Features

2G Network Coverage: Yes

3G Network Coverage: Yes

4G Network Coverage: Yes

5G Network Coverage: Yes

WiFi Calling: Yes

4G Calling (VoLTE): Yes

Data Rollover: No

Tethering Allowed: Yes

eSIM: Yes


About Honest Mobile

Honest Mobile is a UK mobile service provider (MVNO) running on the Three network, offering SIM-only plans and bolt-ons.

As the UK's first carbon-negative mobile network, Honest Mobile donates 1% of their of annual revenue to planting trees and reforestation projects, offsetting the carbon footprint associated with their user's phones, including everything from smartphone manufacturing, to device charging and using mobile data.

Honest Mobile rewards customer loyalty by not hiking prices but instead reducing their monthly bill. Members are notified through smart notifications from Honest Mobile if there is a cheaper plan that they can switch to.

Honest Mobile Network Features

Host Network Provider: Three (MVNO)

2G Network Coverage: No

3G Network Coverage: Yes

4G Network Coverage: Yes

5G Network Coverage: Yes

WiFi Calling: Yes

4G Calling (VoLTE): Yes

Data Rollover: No

Tethering Allowed: Yes

eSIM: No