> For the complete documentation index, see [llms.txt](https://docs.onto.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onto.app/guides/assets/fio-address-management.md).

# FIO Address Management

### **Register FIO Address / Domain**

* On FIO asset details page, tap on "**FIO address management**"
* Tap on "**Register FIO Address**" to open FIO registrations page
* You can register **FIO address** or **FIO domain**

![](/files/mCo3t29UYRGHoBlA0ooY)

* Here's an example of **FIO address registration**
* Enter a username you would like to register, then tap on "**Check Availability**"
* If the username is **available**, tap on "**Register**" to register this username\@onto as FIO address

![](/files/Zb0hTEmDhhHO14VXAz2a)

### **Add FIO Handle**

* If you have registered FIO domain, click **"Add FIO Handle**" to open "**Create FIO Account**" page
* Enter your handle, check availability
* Tap on **"Register**" and **confirm the transaction**

![](/files/vE24wTXVPz9agIm9AbH6)

### **Map Wallet**

* After registration complete, back to the FIO address management page, tap on "**Map Wallet**" button
* **Check wallet addresses** that you would like to map, tap on "**Map Wallet**", then confirm in the pop-up window

![](/files/oFnjaGlaeZQqVPKtFQqI)

### **Transaction via FIO Address**

* On FIO address management page, **select a FIO handle**
* Tap on the **copy icon** on the right of the FIO address to copy the address, which can be used to receive assets on blockchains of mapped wallets

![](/files/IpRu2WG5yA95vN8eo5ta)

* When sending assets, ETH is taken as an example here, select "**FIO Address**" tab, **enter FIO address** to send ETH to the ETH address that has been mapped to this FIO address

![](/files/am4RGVN2yAo2EfDlZA9f)