> For the complete documentation index, see [llms.txt](https://docs.dataimpulse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dataimpulse.com/dataimpulse-documentation-zh-cn/dai-li/can-shu/asn.md).

# ASN

通过此参数路由的流量按标准费率的两倍计费

\
我们的代理支持按 ASN 编号定位，这意味着您可以选择来自特定运营商的代理。您需要在请求中输入所需的 `asn` 参数，并与 `cr` 国家代码参数结合使用。

下面是针对 Play 的示例，其在波兰的 ASN 编号为 39603：

`cr.pl;asn.39603`

```
curl -x "http://login__cr.pl;asn.39603:password@gw.dataimpulse.com:823" https://api.ipify.org/
```

{% hint style="info" %}
重要的是要注意，选择国家是指定城市、州、邮编和 ASN 定位的强制要求。
{% endhint %}


---

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```
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```

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