China Mobile Hong Kong Roaming: GMKT Code & Rates (2026)

Updated · Written by Harry Cheng, founder of china-mobile-phones.com (est. 2003). Rates checked against China Mobile's own roaming guide on 27 October 2026.

Green and white Star Ferry crossing Victoria Harbour with the Hong Kong Island skyline and Bank of China Tower behind it under a stormy sky
A Star Ferry crossing Victoria Harbour towards Hong Kong Island. Photo: Jimbear / Pexels

Quick answer: To use a mainland China Mobile number in Hong Kong, text GMKT to 10086 before you go to check and switch on roaming. On the standard tariff, data is 3 yuan per 3MB (capped at 30 yuan a day), calls are 0.99 yuan a minute including answering, and incoming texts are free. A roaming data package is usually cheaper if you use data.

At a glance
  • Switch on roaming: text GMKT to 10086, or use the roaming section of 10086.cn
  • Standard Hong Kong data: 3 yuan per 3MB, 30 yuan a day cap
  • Voice: 0.99 yuan a minute to the mainland and Hong Kong, and for answering calls
  • Text: 0.39 yuan to the mainland, receiving is free
  • Already abroad without roaming: call +86 138 0010 0186 from a borrowed phone
  • Want a local Hong Kong number instead? See the Hong Kong SIM and eSIM guide

On this page: Activate Rates Packages Making calls Fixes FAQ 中文

This page is for people who keep their mainland China Mobile number and want to use it in Hong Kong. It follows China Mobile's own roaming guide, which we checked in October 2026. If you would rather have a Hong Kong number, see the Hong Kong SIM card and eSIM options.

How to activate Hong Kong roaming (the GMKT code)

  1. Text GMKT to 10086 before you travel. Use your mainland China Mobile number. The reply checks your roaming status and lets you switch on international and Hong Kong, Macau and Taiwan roaming. You can also do it online through the roaming section of 10086.cn.
  2. Decide whether to buy a roaming data package. The standard tariff needs no purchase, but a package is usually cheaper if you use data. Order through the China Mobile international roaming WeChat account or the Wuyouxing app.
  3. Check your phone settings. Turn on mobile data and data roaming. On Android, set the APN to CMNET if data does not work.
  4. If you have no signal, switch network selection from automatic to manual and pick a network. This can take one to two minutes.
  5. Dial mainland numbers with +86 (details below).

Once roaming is on, you usually do not need to cancel it. If you only notice after you arrive, borrow a friend's phone and call the roaming hotline +86 138 0010 0186, which is free from a China Mobile number.

What about BLHKRTC? Older China Mobile Guangdong guides, including an earlier version of this page, used the codes BLHKRTC (on), QXHKRTC (off) and CXHKRTC (status) for a daily Hong Kong plan. China Mobile's current roaming guide does not mention them. If you hold a Guangdong number, ask 10086 whether that daily plan is still offered before relying on it.

Standard roaming rates in Hong Kong

These are China Mobile's published standard rates for Hong Kong, taken from its roaming guide in October 2026. Rates can change, so confirm them with 10086 before a long trip.

China Mobile standard roaming rates in Hong Kong, in yuan
ItemCharge
Mobile data3 yuan per 3MB, capped at 30 yuan a day
Calls to mainland China and Hong Kong, and answering calls0.99 yuan a minute
Text to the mainland0.39 yuan a message
Receiving textsFree

After you reach the daily data limit, speed drops to a maximum of 384kbps until midnight Beijing time. Roaming data in Hong Kong is billed in small blocks, so heavy use adds up fast.

Roaming data packages

China Mobile promotes these packages for Hong Kong travellers. The "from" prices are the lowest listed, so check the current price for the number of days you need.

China Mobile roaming data packages relevant to Hong Kong
PackageWhat it isListed price
Hong Kong, Macau and Taiwan packageChoose 1 to 30 daysFrom 11.9 yuan a day
Greater Bay Area package3GB of high-speed roaming data11.99 yuan a day
Roaming monthly packageData by volume, no speed cap inside the allowanceFrom 10 yuan a month

A package expires 90 days after you order it if you have not used data in the area it covers. It takes effect the first time you use data there, and the confirmation text arrives at your destination. An unused package can be cancelled.

Example: three days in Hong Kong

On the standard tariff, data reaches the 30 yuan daily cap after about 30MB, so three days of regular use can cost up to 90 yuan in data alone. At the lowest listed package price of 11.9 yuan a day, three days comes to about 35.7 yuan. Confirm the current price for your dates before you buy.

How to make calls and send texts in Hong Kong

  • A mainland mobile: dial +86 and the mobile number.
  • A mainland landline: dial +86, the area code without the leading zero, then the number.
  • A Hong Kong number: dial +852 and the eight digits.
  • Another country: dial + , the country code, then the number.
  • Texts to the mainland: enter the mobile number as normal. For other countries, add + and the country code.

Calling back from your contacts list usually does not add the prefix for you, so type it in yourself. Some countries drop the leading 0 from local numbers when dialled internationally. More formats are in our Hong Kong country code and calling guide, and if you use a CMHK Hong Kong SIM instead of roaming, see CMHK international call rates.

No signal or no data?

  • Turn on mobile data and data roaming in your phone settings.
  • Set network selection to manual and choose a network.
  • On Android, if data still fails, set the APN name and APN to CMNET and leave other fields as default. iPhones need no APN change.
  • Still stuck? Contact the roaming hotline +86 138 0010 0186 or the online service in the China Mobile international roaming WeChat account.

Frequently asked questions

What is the code to activate China Mobile roaming in Hong Kong?

Text GMKT to 10086 from your mainland China Mobile number to check and switch on international and Hong Kong, Macau and Taiwan roaming. You can also switch it on through the roaming section of the 10086.cn website.

Is BLHKRTC still the code for Hong Kong?

BLHKRTC, QXHKRTC and CXHKRTC were the codes for a daily Hong Kong plan in older China Mobile Guangdong guides. China Mobile's current roaming page does not mention them and points to GMKT and roaming packages instead. Ask 10086 whether a daily plan is still offered for your number.

How much does China Mobile charge in Hong Kong?

On the standard tariff, data costs 3 yuan per 3MB with a cap of 30 yuan a day. Calling mainland China or Hong Kong, and answering calls, costs 0.99 yuan a minute. Texting the mainland costs 0.39 yuan, and receiving texts is free. A roaming data package is usually cheaper if you use data.

Are incoming calls free in Hong Kong?

Not on the standard tariff. China Mobile lists 0.99 yuan a minute for calls you answer in Hong Kong, as well as for calls you make to the mainland or Hong Kong. Incoming texts are free.

Can I switch on roaming after I arrive in Hong Kong?

Yes, but you need another phone. Borrow a friend's number and call the roaming hotline +86 138 0010 0186, which is free from a China Mobile number. It is easier to switch roaming on before you leave.

What is the China Mobile roaming hotline number?

The China Mobile international and Hong Kong, Macau and Taiwan roaming hotline is +86 138 0010 0186, and it is free to call from a China Mobile number. Inside mainland China you can also call 10086 for customer service.

Is China Mobile Hong Kong (CMHK) the same as China Mobile?

CMHK is China Mobile's Hong Kong subsidiary. It runs a local Hong Kong network with its own Hong Kong numbers and plans, which is separate from roaming with a mainland number. For a Hong Kong SIM, see our Hong Kong SIM card and eSIM guide.

I need to activate or register a new China Mobile SIM. Is this the right page?

No. This page is about using an existing mainland China Mobile number in Hong Kong. To buy a SIM for China and register it, see our China prepaid SIM guide.

My phone has no signal or no data in Hong Kong. What should I try?

Turn on mobile data and data roaming, then switch network selection from automatic to manual and pick a network, which can take one to two minutes. On Android, if data still fails, set the APN to CMNET.

How do I call mainland China from Hong Kong?

Dial +86 and the mobile number. For a landline, dial +86, the area code without the leading zero, and the number. To call a Hong Kong number from your China Mobile phone, dial +852 and the eight digits. Our calling guide covers more formats.

I want a Hong Kong SIM instead of roaming. Where do I look?

A Hong Kong SIM or eSIM gives you a local Hong Kong number and local rates, and it is a separate product from China Mobile roaming. See our Hong Kong SIM card and eSIM guide for the options.

中文说明

开通香港漫游：出发前用内地中国移动号码发送 GMKT 到 10086，查询并开通国际/港澳台漫游。也可在 10086.cn 的漫游页面办理。

标准资费（香港）：流量 3 元/3MB，每天 30 元封顶；拨打内地、香港及接听均为 0.99 元/分钟；发短信回内地 0.39 元/条，接收短信免费。使用流量较多时，建议办理港澳台三地流量包（标示低至 11.9 元/天）。

如出境后才发现没开通：借用亲友号码拨打国漫客服热线 +86 138 0010 0186（移动号码拨打免费）。

BLHKRTC：这是旧版广东移动香港日套餐代码，中国移动现行漫游指南未提及，请向 10086 确认是否仍可办理。如需香港本地号码，可参考 香港 SIM 卡和 eSIM 指南。

How this page was put together. Rates, packages, steps and the hotline come from China Mobile's own roaming guide on 10086.cn, read on 27 October 2026. The older BLHKRTC codes come from this page's earlier version and could not be confirmed on China Mobile's current guide, so they are described as legacy rather than recommended. Package prices and rates can change. This site is independent and not operated by China Mobile.

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