Roaming Service
IDD Service
Mainland China Service
Inbound Roamer Services
Mainland China
Number Service
Mainland China HK
Mainland China HK Macau
Seamless Communication Without Boundary
Enjoy the convenience of keeping just one SIM card with Mainland China, Hong Kong and Macau numbers embedded, stay connected between the 3 locations without hassle. Activate your "Telecommunication Data Based Travel Itinerary Card" for free.

Service Features
  • Auto number switching across borders, hassle free on call forwarding or card swapping
  • Stay connected with HK, Mainland China & Macau numbers on voice and messaging services wherever you are
  • Special rate of $0.98/min at the Special Zones1 and Macau, for incoming calls and outgoing calls to Mainland China, Hong Kong and Macau.
Monthly Fee $38
Special Zones1 Macau
Outgoing/Incoming Call ($/min)2
To HK or Mainland China or Macau number
  • Use China Unicom network in Special Zones or use 3 Macau network in Macau: $0.98
  • Use non-China Unicom network in Special Zones: standard roaming charges
Sending SMS ($/msg)2
To HK or Mainland China or Macau number
Receiving SMS Free
Data Service
MNP (Mobile Number Portability) customers Enjoy 2 months monthly fee waiver3
New customer Enjoy IDD 1968 Mainland China Pack - Free 20 minutes4
  1. The term "Special Zones" used in this content now covers Beijing, Shanghai and Guangdong (Shenzhen, Guangzhou, Fuoshan, Zhuhai, Shaoguan, Dongguan, Zhanjiang, Zhongshan, Zhaoqing, Huizhou, Shantou, Jiangmen, Shunde, Jieyang, Chaozhou, Meizhou, Qingyuan, Maoming, Yangjiang, Heyuan and Shanwei).
  2. An additional charge of $0.98/min will be applied to all received incoming calls to the Mainland China or Macau secondary numbers when the customer is located in Hong Kong or using any mobile networks other than the Mainland China Unicom network in Mainland China or using roaming service overseas. While the customer is located in Macau, an additional charge of $0.98/min will be applied to all received incoming calls to the Mainland China secondary number. If the customer is located in any of the Special Zones, an additional charge of $0.98/msg will be applied to sending SMS to Macau numbers. If the customer is located in Macau and is sending SMS to Hong Kong numbers, such SMS will be charged according to the original basic plan subscribed for by the Customer.
  3. The monthly fee for the "1-Card-Multi-Number"service will be billed and charged automatically immediately after the first 2-month service fee waiver period (subject to the then prevailing monthly fee for the "1-Card-Multi-Number"service).
  4. 20 free minutes to Mainland China is only applicable to IDD prefix 1968 (by dialing 1968 + country code + area code + telephone number). If a customer uses "+", "Redial" or "001", the standard IDD 001 charges shall apply. IDD free minutes will be offered and calculated on the basis of the actual number of days for which the relevant subscriber subscribes for the "1-Card-Multi-Number"service and thus the free IDD minutes offered to the subscriber for the first and last months of the subscription period for the "1-Card-Multi-Number"service shall be on a pro-rata basis. The unused or expired free minutes for each of the subscription months for the "1-Card-Multi-Number"service cannot be accumulated for use for the next month but will be cancelled accordingly upon the expiry of each subscription month. This 20 free minutes offer will be terminated simultaneously upon the termination of the "1-Card-Multi-Number" service.
In response to the latest epidemic prevention measures in Mainland China, “Telecommunication Data Based Travel Itinerary Card” has been terminated with effect from 13 December 2022. 3HK will no longer provide “Telecommunication Data Based Travel Itinerary Card Authorization Service”, while “Mainland China Number Service” or “1-Card-2-Number” service would not be affected.

Click here to view terms and conditions
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