docs/sql-manual/sql-functions/ip-functions/ipv6-num-to-string.md

---
{
"title": "IPV6_NUM_TO_STRING",
"language": "en"
}
---

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## IPV6_NUM_TO_STRING

IPV6_NUM_TO_STRING

### Description

#### Syntax

`VARCHAR IPV6_NUM_TO_STRING(VARCHAR ipv6_num)`

`VARCHAR INET6_NTOA(VARCHAR ipv6_num)`

Takes an IPv6 address in binary format of type String. Returns the string of this address in text format.
The IPv4 address mapped by IPv6 starts with ::ffff:111.222.33. 

#### Notice

If the input string is not the binary encoding of a valid IPv6 address, `NULL` is returned. This function has an alias `INET6_NTOA`.

### Example

```sql
mysql> select ipv6_num_to_string(unhex('2A0206B8000000000000000000000011')) as addr;
+--------------+
| addr         |
+--------------+
| 2a02:6b8::11 |
+--------------+
1 row in set (0.01 sec)

mysql> select ipv6_num_to_string("-23vno12i34nlfwlsj");
+------------------------------------------+
| ipv6_num_to_string('-23vno12i34nlfwlsj') |
+------------------------------------------+
| NULL                                     |
+------------------------------------------+
1 row in set (0.14 sec)
```

### Keywords

IPV6_NUM_TO_STRING, INET6_NTOA, IP