免费工具 · 中国与网络
IP 与 ASN 查询
输入 IP 地址或 AS 号，查看 AS 号、网络名称和注册国家。
- AS 号
- 网络名称
- 注册国家
- 注册机构
- 地址所在国家
该资源不在 AFRINIC、APNIC、ARIN 或 LACNIC 的统计数据中。如果它属于 RIPE NCC 区域，可在 RIPE 数据库中查看其注册信息。 在 RIPE 数据库中查询
IP Geolocation by DB-IP (opens in a new tab) — IP to ASN Lite, CC BY 4.0 (opens in a new tab).
ASN registration data: RIR delegated statistics from AFRINIC, APNIC, ARIN and LACNIC; the snapshot date is shown with each result. RIPE NCC region: see the RIPE Database (opens in a new tab). Registration country is where the resource was first allocated, not necessarily where it is used.
工作原理与局限
查询把开放的 IP-to-ASN 数据与各区域互联网注册机构的委派统计结合起来，按带日期的快照更新。地址查询还可能通过实时 IP 数据服务补充地址所在国家。来源和许可在下方以及每个结果旁注明。
查询结果显示 AS 号、可获取的注册名称和注册国家，部分地址还会显示地址所在国家。城市、路由、上游提供商和对等方一律不显示。
数据来源与许可
Operator names, brands and codes shown here are public reference data compiled from national regulators and other public sources. Their appearance does not indicate any partnership, endorsement, agreement or connectivity between unicomam.com and the named operators. All trademarks belong to their owners. Data is provided “as is” with no warranty; verify against the official source before relying on it for routing, billing or compliance decisions.
监管信息仅供参考，不构成法律意见；请核对监管机构链接和“最后核实”日期。
IP address data is powered by IPinfo (opens in a new tab) — IPinfo Lite, CC BY-SA 4.0 (opens in a new tab).
IP Geolocation by DB-IP (opens in a new tab) — IP to ASN Lite, CC BY 4.0 (opens in a new tab).
ASN registration data: RIR delegated statistics from AFRINIC, APNIC, ARIN and LACNIC; the snapshot date is shown with each result. RIPE NCC region: see the RIPE Database (opens in a new tab). Registration country is where the resource was first allocated, not necessarily where it is used.
AS 号是什么
互联网由许多网络组成，每个独立路由流量的网络都有一个自治系统号，即 ASN。每个公网 IP 地址都属于某个自治系统宣告的地址块，因此查 IP 就能知道主机位于哪个网络。
区域互联网注册机构分配地址块和 AS 号，记录里写着各自最初注册在哪里。注册国家与服务器实际运行地点可能不同。