# ASN定位

我们的住宅代理支持通过 ASN 编号进行定位，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 编号。 以下是 Free SAS 的示例，其 ASN 编号为 AS12322：

`td-customer-USERNAME-country-fr-asn-AS12322`

{% hint style="success" %}
[**点击此处**](https://vip-upload.thordata.com/files/file/residential-proxies/list_of_ASN.xlsx) 下载完整的ASN列表
{% endhint %}

住宅代理池是轮换的，因此在特定时间内可能没有可用的IP供特定ASN使用。如果发生这种情况，您将收到错误响应。在这种情况下，请尝试针对其他ASN。

{% hint style="danger" %}
ASN 参数必须与国家参数一起使用，不能单独指定。
{% endhint %}


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