什么是 AS 编号（ASN）？
自治系统编号（ASN）是分配给使用边界网关协议（BGP）路由互联网流量的网络运营商的唯一标识符。ASN 在互联网架构中发挥关键作用，使不同网络之间能够通信。
ASN 查询
查询任意自治系统编号（ASN）。
AS Number Data
- AS Number
- AS2856
- Name
- BT-UK-AS
- Country
- GB
- Organization
- British Telecommunications PLC
- Phone
- +44 (0)20 7356 5000
- N/A
- Domain
- bt.com
- Status
- ASSIGNED
- Created
- 2004-04-17T12:11:50Z
- Type
- Isp
- Registry
- N/A
IPv4 Prefixes
212.140.0.0/16194.102.0.0/1994.232.100.0/22194.189.44.0/24194.60.136.0/2489.117.203.0/24151.240.188.0/22195.130.12.0/24192.8.112.0/2451.230.255.0/24217.217.60.0/2294.26.64.0/23212.82.0.0/19151.241.200.0/225.80.0.0/1586.54.81.0/24164.38.33.0/24164.134.134.0/24132.153.246.0/24143.223.132.0/24193.37.160.0/20193.32.39.0/2484.46.188.0/24193.38.194.0/2394.125.17.0/24185.177.64.0/23132.153.3.0/24147.78.68.0/2286.38.93.0/2481.128.0.0/1151.230.64.0/20195.218.32.0/19151.241.56.0/22144.87.28.0/22194.70.94.0/24159.180.96.0/19151.245.208.0/22192.53.46.0/2437.44.230.0/2486.128.0.0/1286.128.0.0/1091.142.128.0/2431.130.240.0/23194.132.24.0/24151.241.196.0/22193.38.192.0/2291.102.190.0/24192.152.14.0/24159.253.66.0/2389.145.172.0/23205.239.40.0/23213.1.0.0/16194.60.139.0/24194.32.31.0/24163.5.249.0/2486.38.86.0/2486.38.148.0/24195.130.11.0/2484.46.177.0/24193.195.138.0/2486.38.233.0/24132.153.250.0/24217.217.36.0/2285.204.160.0/22151.244.80.0/22142.205.162.0/23194.32.29.0/24178.94.244.0/22193.111.19.0/2451.14.0.0/16194.155.58.0/24194.132.25.0/24195.88.20.0/24151.241.52.0/22164.38.197.0/2485.235.123.0/2462.239.0.0/16213.209.149.0/24212.148.1.0/24132.153.254.0/2437.44.229.0/24217.31.10.0/23151.245.80.0/2284.46.183.0/24164.38.31.0/2486.38.68.0/2431.90.0.0/15159.197.13.0/24185.156.48.0/24192.65.224.0/2451.230.112.0/20188.172.168.0/2162.6.0.0/16132.153.253.0/2431.96.0.0/16217.217.56.0/22194.60.138.0/2482.140.170.0/245.35.192.0/21194.32.20.0/2285.88.240.0/23163.5.37.0/24193.111.4.0/24192.65.223.0/24194.227.120.0/2462.7.0.0/1631.94.0.0/16193.138.107.0/2437.44.231.0/24148.252.3.0/24164.38.34.0/24148.252.7.0/24193.37.142.0/24178.92.112.0/22193.187.140.0/2294.125.19.0/24132.153.244.0/24194.227.72.0/2484.46.194.0/24194.36.68.0/2482.140.138.0/24216.165.88.0/24217.177.33.0/2462.172.0.0/16164.38.16.0/22178.93.104.0/22205.239.42.0/24164.38.120.0/22109.205.158.0/245.81.0.0/16178.78.120.0/21164.38.12.0/24195.130.15.0/2485.88.224.0/20193.33.199.0/2451.230.32.0/2015.145.20.0/22165.120.0.0/16149.254.1.0/24178.78.112.0/2185.116.11.0/2431.119.0.0/16217.32.0.0/1286.128.0.0/11213.205.208.0/205.83.213.0/24193.38.192.0/23185.90.32.0/2231.112.0.0/14193.111.18.0/2482.140.134.0/24163.5.98.0/24188.172.160.0/21193.111.5.0/24151.241.188.0/2286.38.123.0/24164.38.148.0/2486.38.118.0/24185.58.165.0/24163.5.222.0/24151.244.204.0/2286.38.244.0/24151.240.196.0/22164.134.138.0/24152.114.222.0/2391.90.125.0/24194.227.73.0/24193.32.48.0/24194.36.135.0/24144.87.24.0/21193.23.32.0/24151.240.200.0/22194.246.78.0/24144.87.16.0/20217.15.64.0/20164.38.32.0/24195.130.13.0/24193.113.0.0/1682.153.181.0/24167.148.60.0/2291.236.216.0/23156.146.3.0/2451.230.96.0/20195.171.0.0/16144.87.24.0/2284.55.22.0/24185.149.6.0/24164.38.149.0/2491.230.16.0/2483.138.19.0/2451.230.0.0/2094.125.18.0/24193.32.46.0/24132.153.247.0/24163.5.208.0/24149.117.130.0/2481.128.0.0/12193.35.158.0/23216.120.189.0/24151.240.192.0/2231.104.0.0/1631.117.0.0/1651.230.48.0/2082.153.33.0/24147.189.76.0/22192.65.219.0/24164.38.184.0/22144.87.0.0/21157.236.255.0/24194.60.137.0/24178.78.106.0/23206.193.176.0/2484.23.0.0/1931.126.0.0/15193.84.142.0/24132.153.248.0/24193.36.243.0/2486.38.193.0/24151.241.192.0/2231.48.0.0/1384.46.190.0/24195.182.62.0/2445.149.170.0/23192.8.149.0/24151.241.60.0/22147.189.68.0/22163.5.67.0/2486.38.56.0/24164.134.137.0/2446.248.124.0/23193.36.253.0/24144.177.74.0/23193.35.220.0/22151.245.204.0/2246.248.126.0/2395.144.0.0/13148.253.220.0/2386.38.65.0/2486.38.63.0/24157.236.254.0/23193.36.80.0/24164.38.134.0/24198.178.235.0/24152.114.196.0/2431.120.0.0/1691.227.78.0/24164.38.2.0/24151.240.180.0/2289.117.198.0/24163.5.217.0/2477.94.224.0/24192.65.227.0/2482.153.190.0/24164.134.1.0/2484.46.181.0/24163.5.115.0/2489.117.183.0/24116.66.140.0/2246.248.96.0/22145.79.172.0/22195.130.3.0/24195.104.240.0/24132.153.249.0/24178.212.56.0/23109.144.0.0/12163.5.122.0/24193.35.197.0/24192.65.228.0/24213.120.0.0/1451.230.80.0/20195.130.14.0/2431.118.0.0/1686.38.67.0/2484.46.191.0/24194.59.188.0/2437.97.112.0/22159.197.44.0/24151.241.184.0/22157.236.254.0/2431.121.0.0/1645.149.168.0/23192.65.221.0/2491.90.127.0/24178.95.60.0/22144.87.128.0/18132.153.251.0/24164.38.196.0/24192.65.225.0/24194.169.32.0/21147.148.0.0/14132.153.245.0/24151.240.184.0/2282.153.238.0/24132.146.0.0/1684.55.17.0/24109.180.0.0/15151.241.180.0/2282.140.143.0/24195.35.123.0/245.83.212.0/24195.130.6.0/24185.128.205.0/24193.35.160.0/2331.92.0.0/1591.230.40.0/24213.190.16.0/2351.230.16.0/20178.78.108.0/2294.125.16.0/24178.93.192.0/22185.68.200.0/22213.249.188.0/2281.161.52.0/22193.36.240.0/24193.28.232.0/24192.65.226.0/2437.230.61.0/2489.117.235.0/2445.149.7.0/24164.38.156.0/2446.68.66.0/24178.92.180.0/22198.232.43.0/24213.209.146.0/24194.72.0.0/14195.99.0.0/1686.110.57.0/24132.153.252.0/24138.108.94.0/2472.9.180.0/22193.38.192.0/1982.136.54.0/23152.114.220.0/23164.134.136.0/24213.190.18.0/2389.39.172.0/2395.173.59.0/2494.72.248.0/21164.134.135.0/24192.65.222.0/24217.31.9.0/2491.102.189.0/24193.39.141.0/24151.244.208.0/22147.152.0.0/16159.197.45.0/2491.102.191.0/2431.124.0.0/16193.32.254.0/2446.68.0.0/15
IPv6 Prefixes
2001:4878:c259::/482a00:2380::/252a01:4c8:f401::/482a02:ee80:4176::/472a03:1e82:90ff::/482a01:4c8:f400::/48
什么是 ASN 查询工具？
ASN 查询工具是一项服务，可查询 ASN。该工具可用于获取给定 AS 编号的网络运营商信息。
用 ASN 查询 API 防范欺诈
ASN 查询工具还可用于防范在线欺诈，提供与特定 IP 地址或域名关联的网络和组织的有价值信息。
例如，企业可使用 ASN 查询 API 识别并拦截来自可疑或欺诈网络的流量，保护客户免受潜在诈骗或钓鱼攻击。同样，金融机构可使用 ASN 查询 API 检测并阻止来自已知高风险网络的欺诈交易。
借助 ASN 查询 API 提供的信息，组织可强化安全态势，保护用户免受各种在线威胁。
有关此服务的更多信息，请查看我们的文档。
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