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 (for shared roam data please refer to each plan details)
• international calls to 10 selected destinations
• CMLink 1-Card-Multi-Number (1CMN)
• 7X24 Chinese customer services
• top-up with WeChat Pay, Alipay, VISA, Master and UnionPay

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, EU and selected destinations, mainland China and Hong Kong. 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.

CM Numbers Link has upgraded to CMLink 1-Card-Multi-Number (1CMN), click "1CMN" for more details.
Get SMS and Voice call forwarded from your China Mobile Mainland number or China Mobile Hong Kong number to your CMLink number. Then the China Mobile SIM Card no longer needs to be switched on. You can even apply for a new China Mobile number if you do not have one. Whether managing your online banking or logging into popular Chinese apps, CMLink has your journeys covered.
Each number will be charged GBP3 per month (to be deducted on the same day each 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.

Please find our estimated time of delivery:

• UK: 3~5 working days
• Europe: 5~7 working days
• China: 3~7 working days

**Delivery time may vary depending on the local logistic condition.

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 the SIM with standard postage.

If you haven't received your SIM by the estimated delivery time, please contact our customer service.

The pre-paid fee of £1 cannot be refunded in cash, but can be used to purchase plans.

Insert the SIM and enjoy your service immediately, and the SIM card is activated when you receive the activation SMS notification. 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.

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

Please visit the Top Up page and follow the instructions, then subscribe to a new plan, please text GP and PLAN CODE to 10086,

eg.

to subscribe £16, please text GP 16 to 10086

to subscribe £20, please text GP 20 to 10086

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.
Website SIM card application：Click “Get A SIM” and fill in your contact details to place your order.
WeChat official account SIM card application: Please follow WeChat account “CMLink_UK” and click the menu bar to login to the SIM order page.

Please find our estimated time of delivery:

• UK: 3~5 working days
• Europe: 5~7 working days
• China: 3~7 working days

**Delivery time may vary depending on the local logistic condition.
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 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 9 / GP 11 / GP 16 /GP 20 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, text QXTC and PLAN CODE to 10086,
eg.
to cancel £5.99, please text QXTC 599 to 10086
to cancel £10.88, please text QXTC 1088 to 10086

Then subscribe to a new plan, please text GP and PLAN CODE to 10086,
eg.
to subscribe £16, please text GP 16 to 10086
to subscribe £20, please text GP 20to 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 1GB data, please text GP DP3 to 10086
• £8 for 3GB 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 with Android devices after enabled the mobile data, please follow below instruction to set the APN.
The setting and description may be different on each Android phone.
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.

If you purchased 5G Super plan, plesae refer to the details of each plan, part of data in the pack can be used in the UK, EU and selected destinations (total 45 destinations) and China (Mainland and Hong Kong).
If you purchased 5G basic plan, the data in the pack 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 or 5G signal, i.e. only covered by 2G or 3G.
• Your mobile phone has not switched on 4G or 5G.
• 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.

Please first confirm whether your mobile phone supports 5G function, if so, please check if the 5G option has been turned on:
iOS users: Settings> Cellular Network> Network> Voice and Data> Turn on 5G
Android users: Settings>Mobile network>SIM card information>Network type selection>5G network priority
*Different models may require different settings
Finally, please check whether your area has 5G coverage.

You can turn off the 5G network on your mobile phone. However, even if the 5G network is turned off, the smart phone will generally use faster network. If you do not need to enable high-speed data for the time being, you can also contact our customer service to turn off the 5G function from your SIM.

We enables the 5G function by default. If you have actively contacted customer service to turn off the 5G function, please contact customer service again to re-enable 5G.
If you have subscribed to 5G service and your phone supports 5G, you can just turn on the 5G funtion on your phone.

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 use policy. Please click here for more information.

You can check the payment method and manage your credit/debit card by following these simple steps in our Payment Guideline (PDF).