# What is 4G mobile proxies and how everything works?

{% hint style="info" %}
**Good to know:** our proxies come straight from physical devices with SIM cards in it. It's the cleanest residential mobile connection you'll ever find.

Mobile proxies is residential type of proxies.

**Port = private device.**
{% endhint %}

4G mobile proxy connection is exact same 4G LTE connection that real people use daily on their phones.

The reason, why 4G mobile proxies are so powerful, is because of a technology called CGNAT (Carrier Grade Network Address Translation). Its concept is simple – your current IP address might be shared with other handful of people. 

Everyone uses these IP addresses for regular daily activities like making purchases on Amazon or scrolling through social media. Websites are fully aware of it and they don’t blacklist these IPs.

### Technical specifications & how everything works

Follow our handy guides to get started on the basics as quickly as possible:

{% content-ref url="technical-explanations/proxy-rotations" %}
[proxy-rotations](https://docs.coronium.io/technical-explanations/proxy-rotations)
{% endcontent-ref %}

{% content-ref url="technical-explanations/proxy-authentication" %}
[proxy-authentication](https://docs.coronium.io/technical-explanations/proxy-authentication)
{% endcontent-ref %}

{% content-ref url="broken-reference" %}
[Broken link](https://docs.coronium.io/broken-reference)
{% endcontent-ref %}

{% content-ref url="technical-explanations/data-limits" %}
[data-limits](https://docs.coronium.io/technical-explanations/data-limits)
{% endcontent-ref %}


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.