> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hologram.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Country and network coverage

> Hologram provides global coverage across 550+ networks in 190+ countries to connect your devices anywhere your fleets are deployed. You can find detailed coverage information on our [coverage page](https://www.hologram.io/coverage/).

<Card icon="tower-cell" title="550+ local networks" horizontal />

<Card icon="circle-bolt" title="2 Tier-1, high-performance networks" horizontal />

<Card icon="globe" title="In 190+ countries" horizontal />

<Card icon="gauge-simple-high" title="Latency as low as 50ms" horizontal />

## How can I customize coverage or network availability?

Access to some networks requires custom data plans. If you would like more information or have questions about our coverage after reviewing our [coverage page](https://www.hologram.io/coverage/), please [contact one of our IoT experts](https://www.hologram.io/contact-sales/) for more information.

## How is coverage determined for a SIM?

Coverage for a Hologram SIM is determined by a combination of the SIM's **data plan** and **enabled profile**.

Each profile installed on your SIM has access to a different set of global carrier networks. A data plan provides access to a predefined list of networks, RATs, and countries that the SIM can connect to that provide the best combination of coverage and price avilable to your SIM. The enabled profile determines which combination of those networks are available to your SIM when it connects to the internet. With Outage Protection enabled, the SIM can switch to a backup profile if the primary profile loses connectivity extending the coverage available to your SIM. With this combination you can prefer access to a Tier-1 high-performance network on one profile, while still having global coverage as a backup on the other profile.

## How is Hologram's total network count defined?

Coverage totals are based on the available mobile network operators (MNOs) we provide access to globally across commonly recognized countries. A single MNO like T-Mobile in the USA, for example, consists of many networks across the country. We count that as a single "network" for coverage purposes rather than listing each TADIG + MNC + MCC combination individually. Similarly, we provide access to additional territories and provinces but for clarity we only label UN-recognized countries.