The special services provided by CMLink UK SIM include (but not limited to):

• a contract-free Plan covering the UK, EU and selected destinations (total 45 destinations), mainland China and Hong Kong
• free calls to numbers of mainland China and Hong Kong from the UK
• 7X24 Chinese customer services
• top-up with WeChat Pay, Ali pay, VISA, Master
• Two number one SIM to connect your UK number with China Mobile mainland number

CMLink UK SIM Card covers the UK, EU and selected destinations (total 45 destinations), mainland China and Hong Kong.

The 45 EU and selected destinations are Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, French Polynesia. West Asia, Germany, Gibraltar, Greece, Guadeloupe, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Martinique, Monaco, Netherlands, Norway, Poland, Portugal, Reunion, Romania, St. Bartelmi, Saint Martin (France), Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Azores, Madeira, Mayotte, Vatican City.

CMLink UK SIM can only be activated when you are in the UK, EU and selected destinations. The SIM cannot be activated in China (including Hong Kong, Macau and Taiwan).

After activation, CMLink UK SIM can be used at below destinations:
 Greater China:
Mainland China, Hong Kong and Taiwan.
 UK, EU and selected destinations (total 45 destinations):
Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, French Polynesia. West Asia, Germany, Gibraltar, Greece, Guadeloupe, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Martinique, Monaco, Netherlands, Norway, Poland, Portugal, Reunion, Romania, St. Bartelmi, Saint Martin (France), Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Azores, Madeira, Mayotte, Vatican City.
 Other countries and regions (total 33 destinations):
Albania, Algeria, Australia, Bangladesh, Bosnia and Herzegovina, Brazil, Canada, Dominican Republic, Egypt, Indonesia, Israel, Japan, Kenya, Malaysia, Mexico, Moldova, Montenegro, Morocco, New Zealand, Nigeria, Oman, Panama, Philippines, Qatar, Saudi Arabia, Serbia, Singapore, South Africa, South Korea, Sri Lanka, Ukraine, United Arab Emirates, Vietnam.

Click our plans for more details.

Yes, you can. Please click Tariffs for more details.

If you do not purchase a plan, you can use voice and SMS services at the standard rate of Pay as You Go, but you are unable to use the data service in the UK. It is recommended to buy a plan. Click our plans for more details.

Please click Tariffs for more details.

Please click Tariffs for more details.

You can simply link your CMLink number to your China Mobile number used in mainland China to get the SMS message which is received originally by your mainland China number. The SMS message will be forwarded to your CMLink number in the UK automatically. Your original China Mobile number used in mainland China does not need to have the roaming function switched on. You can enjoy the service for free with our limited-time exclusive trial from now till 31st March 2021. You can continue to use the CM Numbers Link service after the trial period for £3 per calendar month.

You can request refund if you have not activated your SIM card (data plan) within 14 days of your online purchase.  It is not refundable if the transaction is done more than 14 days ago. All top up amounts are non-refundable in all circumstances.

CMLink combines three most commonly used SIMs on the market and makes them in one. We use multi-SIMs, which allow you to pop out the size you need for your device.

Getting your SIM is easy. Click “Get A SIM” and fill in your contact details to place your order.

Please find our estimated time of delivery:

• UK: within 5 working days
• Europe (excluding UK): within 5 working days
• China (including HK, Macao and Taiwan): within 7 working days

If your address is in mainland China, we will post the SIM with express delivery service. You can check the delivery status by contacting the delivery company quoting your order reference number in the order confirmation email. If your address is in other places, we will post SIM with standard postage.
If you haven't received your free SIM by the estimated delivery time, please contact our customer service.

Insert the SIM and enjoy your service immediately if you’ve already purchased the plan, and the SIM card is activated when you receive the activation SMS notification.
Please top-up and text GP 599/GP 999/GP 1299/GP 1999 to 10086 to order a plan if you have a free SIM in hand.
CMLink UK SIM can only be activated when you are in the UK, EU and selected destinations. The SIM cannot be activated in China (including Hong Kong, Macau and Taiwan). CMLink UK SIM can be used at mainland China, Hong Kong and Taiwan after activation.

Once you've activated your SIM, it is valid for 180 days. If you haven’t consumed any credit or re-done any top-up in 180 days, your SIM will become “terminated”.

Please note that your number will no longer be available when your SIM expired. The remaining balance will be cleared and cannot be recovered either. Please pay attention to the relevant SMS reminders.

You can contact us anytime to request a new SIM. For the security reason, we may ask you about your SIM number, last top up information etc. to confirm your identity. After confirming all the information is correct, we will ship a new SIM to you. Any remaining balance from your lost SIM can be transferred to the new one.

CMLink SIM cannot be purchased in a large amount for personal use. Please call our customer service for help if you are purchasing for groups.

Yes you can use the SIM in Mainland China after you activated the SIM. However, the SIM cannot be activated in China (including Hong Kong, Macau and Taiwan), it can only be activated when you are in UK, EU and selected destinations.

First of all, please cancel your current Plan. To cancel £5.99 / £9.99 / £12.99 / £19.99 plan, please text QXTC 599 / QXTC 999 / QXTC 1299 / QXTC 1999 to 10086.
Then subscribe to a new Plan. To subscribe £5.99 / £9.99 / £12.99 / £19.99 plan, please text GP 599 / GP 999 / GP 1299 / GP 1999 to 10086.
Your new plan will only be activated when your current plan expires.

You can buy a data add-on pack when you've used up the data and voice resources of your current plan:

• £3 for 1.5GB data, please text GP DP3 to 10086
• £8 for 6GB data, please text GP DP8 to 10086
• £1 for 25mins voice, please text GP VP1 to 10086
• £4 for 100mins voice, please text GP VP4 to 10086

The data add-on pack will be activated upon purchase. It is valid until the end date of your current Plan.

Please add "+ country/region code" before an overseas number you are going to call. For example, to call to mainland China from UK:

• +86(mobile number) or
• +86(city code with the 0 removed at the beginning) (landline number only)
• Long-press "0" on your mobile phone's keypad to enter the "+" symbol

Please add "+country/region code" before an overseas number. For example,
To call to mainland China:

• +86(mobile number) or
• +86(city code with the 0 removed at the beginning) (landline number)
• Long-press "0" on your mobile phone's keypad to enter the "+" symbol

To call to UK:

• +44(mobile number) or
• +44(landline number with the 0 removed at the beginning)
• Long-press "0" on your mobile phone's keypad to enter the "+" symbol

Local UK numbers calling you need to add the 0 at the beginning of your number, eg. 07973000186
Non-UK numbers calling you need to add “+44” then type in your number with the first digital ‘0’ deleted, for example: +44 7973000186.

Simply enable mobile data on your mobile device.
In case if you still cannot access the internet after enabled the mobile data, please follow below instruction to set the APN:
iOS:
1. Settings > Mobile Data > Mobile Data Network
2. APN enter [everywhere]

Android (You may follow the steps as below. The setting and description may be different on each Android phone, please contact us if you need assistance)
1. Settings > Connections > Mobile Networks > Access Point Names
2. APN enter [everywhere]
Details please refer to APN setting guideline (PDF)

Simply turn on the functions of mobile data and data roaming on your mobile.

The data in the pack you purchased can be used in the UK, EU and selected destinations (total 45 destinations) and China (Mainland and Hong Kong).

If you find your data speed is slow, it might be because:

• The place you are located is not covered with 4G signal, i.e. only covered by 2G or 3G.
• Your mobile phone has not switched on 4G.
• The signal at your current location is weak or you are located in a place heavily crowed (e.g. Metro station, railway station, stadium or high street etc.)

Please visit the Top Up page and follow the instructions.

Please firstly order a CMLink SIM from us (click here). Then you need to contact your mobile service provider to get your PAC / STAC (PAC is the code to bring along your mobile number, STAC is the code to port in without bringing your mobile number). After you receive your CMLink SIM, please visit here and follow the instructions to submit your port-in request.

Please visit here and follow the instructions.

You can dial 185 or text CHECK or CXYE to 10086.

You can dial 185 or text CHECK or CXYE to 10086.

ICCID is the ID of a SIM card which consists of 19 numbers. You can find the ICCID number on the back of your SIM card frame.

You can find it at the back of your SIM card frame. If you have inserted the SIM into your phone, you can dial *187# to receive a text with information about your mobile number.

PIN code is the password for your SIM card. PIN code can protect your SIM card from being abused by others if SIM card gets lost. If booting PIN code is enabled, PIN code need be input for each booting. When your PIN code is mis-typed for three times, the mobile phone will automatically lock the card and needs PUK code to unlock it. This requires you to dial the customer service hotline. Our customer service will inform you of the initial PUK code to unlock the SIM card.

To ensure all our customers can have the best experience, you need to follow the fair user policy. Please click here for more information.