The expiry date will be extended 1 year automatically from the date of any purchase of data package. In turn, it will be expired if you have not purchased any data package in 1 year.

It is a 3-in-1 SIM card that supports Nano, Micro and Normal formats. It is compatible with most mobile phones

All purchased data packages can be used from 14 days before the selected effective date and within 30 days from the selected effective date.

Yes, it can be used in multiple destinations if you have valid data packages for the corresponding destinations.

Normally, APN will be set automatically in most regions. However, manual APN setup may be required in some destinations. Please refer to APN & Carrier List.

The setup procedures in iOS and Android systems were listed below:

Except for 24 hours and 48 hours data packages, the daily data usage time is from Hong Kong time (GMT+8) 00:00:00 to 23:59:59. 

There is no pro-rata calculation regardless of the activation time of data service. 24 or 48 hours data package is a continuous 24-hour or 48-hour session starting from service activation.

This SIM is a roaming data SIM card. You need to switch on ‘Data Roaming’ in order to use the service. There is no roaming charge involved. After switch to other SIM card, please remember to turn off data roaming function, in order to avoid unnecessary roaming charges. 

(Note: for Dual SIM handset users, please insert AIRSIM into SIM Slot 1, then make sure the data service is assigned to SIM 1).

Yes, it works on unlocked mobile phones and tablets (such as iPAD), you can use data sharing (tethering) when you switch on the ‘Personal Hotspot’ function on your device. 

However, it is not compatible with pocket WiFi device.

Yes, you first logout your account from AIRSIM ROAM app. 

Then, give the ICCID, A/C number and activation code labelled on the back of the SIM to your friend and ask them to install the AIRSIM ROAM and AIRTALK app as well. Then, login again in both apps of his/ her mobile phone.

Fair Use Policy (FUP) applies in many oversea mobile operators, so this SIM provides unlimited data usage plan in most of the destinations as well. You may see ‘unlimited’ in both the name of package and data usage. FUP refers to the data access speed will be restricted (i.e. 256kbps) when the daily usage reached a certain amount.

Thus, even though you choose an unlimited package, you are recommended to use free WiFi for activities that require high data usage. 

It may be the network conditions of that area (i.e. inside the lift). You may try later.

If you chose a limited data package, the data may be used up. You may top up abroad for the days remained. For the details, you may refer to the steps on ‘How to use’ page.

If you chose an unlimited package, please contact the 24/7 customer service support.

The data volume you require depends on the activities, here are some examples.

Low usage
Email with text only, 40 emails consume about 1MB data.
Online Map or GPS navigation consumes about 1MB per minute.

Medium usage
Web browsing consumes 1MB per minute (mainly text) to 4MB or above per minute (with media).
Social Media such as Facebook consumes 20MB – 120MB per hour (depends on the quantity of media).

High usage
Audio and video streaming needs 2MB per minute (normal quality) to 5MB per minutes (high quality). We recommend using WiFi for these activities.

Also, you may check the previous monthly data usage in your mobile as a reference.

You can check and monitor your data usage in the setting of your mobile phone, or by third-party Apps.


You need to use AIRTALK mobile app to make phone calls. Calling Local and Home Numbers, you need to dial the country code and area code as well to make the calls. For example:
Calling Japan, Tokyo Number: Press +81 3 1234567 Call
Calling Taiwan Mobile Number: Press +886 91234567 Call
Calling Hong Kong Number: Press +852 21234567 Call

The SIM provides 30 minutes free AIRTALK for each package. If you purchase AIRTALK package independently, you can select 60 and 120 minutes package. The destinations are divided into Zone A, B and C which have different rates. Receiving and making calls are calculated in per-minute basis and deducted from your package. Call duration is rounded up to full charge units for computation purposes. The destinations covered by AIRSIM are divided into Zone A, B and C. AIRTALK Zone A includes the United States, Canada and some common Asia countries. Zone B includes Europe, the United States, Canada, Oceania and most of Asia countries. Zone C includes ALL AIRSIM supporting regions. Please find the details in the Mobile App AIRSIM ROAM.

Yes, verification of your mobile number is required during the registration. Please make sure that mobile number can receive SMS message. We recommend you download the AIRTALK ROAM app and verify your mobile number before departure.

If you purchase AIRTALK with AIRSIM data package together, the validity is the same as AIRSIM data package.

If you purchase AIRTALK package independently, the validity period is 30 days starting from activation date.

Receiving call function is only applicable to Hong Kong mobile numbers. 

If you want to receive Hong Kong calls, please divert your verified Hong Kong mobile number to 305 99 888 before leaving Hong Kong. (before leaving Hong Kong, use your verified Hong Kong mobile number, press: **21*30599888# CALL ) The system will automatically divert all your incoming calls to AIRTALK and you can receive calls when you are overseas. In addition, multiple call divert is not supported; only ONE verified Hong Kong mobile number can be diverted.

When using AIRTALK to receive Hong Kong calls, please make sure the incoming call is from AIRTALK before answering. Also, please remember to cancel the call forwarding function by pressing: # # 21 #

No., the SIM supports data service only. However you can call local and home numbers by using AIRTALK app.

Please check the setup of your mobile phone, see if you have accepted all the permissions for AIRTALK, including Mobile Data, Notification and Microphone.

Yes, pleaes keep the card holder or take photo for the ICCID, A/C number and activation code on the back side of the card. You are required to register again when you change another mobile phone.