Frequently asked questions

Frequently asked questions by our customers.


What is Sim4crew?

Sim4crew is a global mobile operator for seafarers. Sim4crew offers 2 products:

Sim4crew Classic

Sim4crew Classic is a global SIM card that provides voice, SMS & data in 150+ countries. It’s our flagship product used by 50.000 seafarers worldwide.

Sim4crew Data Hungry

Sim4crew Data Hungry is a data-only global SIM card that provides huge data packages for up to 100GB in 150+ countries. It’s ideal for users who seek more data and do not need calls & sms.

What kind of a device do I need to be able to use Sim4crew?

Sim4crew Classic and Sim4crew Data Hungry are physical SIM cards and can be used in all kinds of mobile phones, tablets, USB modems and hotspots.

What sizes does Sim4crew SIM card have?

Sim4crew physical SIM cards come in 3 sizes: Regular, Micro and Nano.

How to use

Do I need to register to activate my Sim4crew?

No. Your Sim4crew is already pre-registered which means you can start making calls or surfing the internet right away.

Do I need to keep a minimum balance on my SIM card? Will it expire?

No. You do not need to keep a minimum balance. Sim4crew SIM cards never expire which means you can go back home and use it even after 2 years, when you go back to the sea.

Does Sim4crew work in the middle of the sea?

Sim4crew SIMs need to receive a signal from a partner telecom operator to work. If you are close to land, you might still be able to connect. If you are very far from land, such as the middle of the ocean, Sim4crew will not work.

How do I apply top up / data-only package vouchers?

You can apply your voucher on via Apply Top up / Data Voucher section or you can enter the voucher on your phone's dial pad ending with the pound key (#) and press dial. The top up or the data-only package will be active in a few seconds.

What kind of top ups are available?

Sim4crew Classic can be topped up with regular pay-as-you-go credits for voice, SMS & data or data-only packages. Sim4crew Data Hungry can be topped up with data packages only.

Do my top ups expire?

Pay-as-you-go  top ups can be used for up to 2 years after being loaded into your SIM. Data packages validity will vary according to the chosen bundle and can last for the validity period or until the data is used up.

Can I add multiple data packages at the same time?

Only one data package can be active and available at any given time. Adding a new data package will remove any previous package on your SIM.

Can I have an active data package and active pay-as-you-go credits at the same time?

Yes. A user can have a data package and pay-as-you-go credits at the same time. If you are in a package zone, your data package will be deducted for your internet usage. If you are in a non-package zone, your pay-as-you-go credits will be deducted for internet usage.

What are the rates for using Sim4crew and which networks should I connect for correct use?

You can view the rates and networks here.
You can also send us an email at to request current rate sheets and available network list.

How do I buy Sim4crew SIM cards and top ups?

Sim4crew SIM cards can be purchased via our agents worldwide . You can see our agents here. Top ups can also be purchased via our agent network. You can also top up directly online on our website via credit card, PayPal, Dragonpay.

I do not have a suitable way to top up online and there are no Sim4crew agents in my current port. How can I buy?

In this case, please send us an email at and kindly share with us your local ship agent details or shipchandler details, if available. We will contact them to arrange your SIM cards and top ups.

We are in maritime business and we would like to distribute Sim4crew products in our area. Can we be partners?

Yes. We are always looking for new partners in new regions. Kindly send us an email at and we will tell you how we can work together.

Does Sim4crew SIM card connect to networks automatically?

Yes. Sim4crew is programmed to find the right network and connect automatically.

Sim4crew cannot connect to some networks in some countries. Why?

There may be 2 possible issues: either we have blocked that network due to its high cost in order to protect you from losing money, or you may be in a remote place where the signal cannot reach your SIM card.

Sim4crew can not connect to a network even when it is not on your blocked list. Why?

If your Sim4crew does not automatically connect to a network, try to connect it manually.

On iPhone:
Step 1. Go to Settings
Step 2. Select Carrier
Step 3. Switch Automatic OFF
Step 4. Once the network list is loaded select one of our supported networks

On all other phones:
Step 1. Go to Phone Settings
Step 2. Go to Mobile Networks or More Settings
Step 3. Find Network Operators
Step 4. Search for networks
Step 5. Once the network list is loaded select one of our supported networks

How do I make a call with my Sim4crew Classic?

You simply dial the number you wish to call with its country code ending with the hash (#) key.

How do I send an SMS?

You simply send an SMS to the number with its country code.

How do I connect to the internet?

Once you insert your Sim4crew, it should automatically connect to the internet. If it doesn’t connect automatically, you will need to change your APN name in the phone settings. Your APN name must always be: globaldata

When someone calls me on my Sim4crew Classic, how will they be charged?

They will be charged by their local operator according to the cost of calling to the United Kingdom because your Sim4crew number will be a UK number starting with +44.

Can I use my favorite applications with Sim4crew’s internet?

Of course. You can use Facebook, Whatsapp, WeChat, YouTube, Skype, etc. You can basically use all your internet applications without any limitations.

What’s Crewmoney? How do I use my Crewmoney voucher?

Crewmoney is our wallet system. You earn Crewmoney for every purchase you make via credit card, Paypal and Dragonpay. Also you can buy Crewmoney vouchers from our partners worldwide. If you have a Crewmoney voucher, you can apply this voucher to your Sim4crew account and use it to purchase top ups and data packages.

Do I need to sign up and create an account to use Sim4crew and top up?

You can use Sim4crew and top up your SIM without creating an account but we strongly suggest signing up so you can see all your SIMs in one place, track your history and also earn free Crewmoney cashback on your top up purchases.

How can I reach you?

We will be more than happy to answer all your questions. You can reach us by filling out the contact form on our website here or sending us an email at We also have a Facebook page where we update our users regularly. Please like and follow our Facebook Page to be informed about new updates and promotions.