如何查询ip地址的AS自治域号码

linux下安装whois:
# yum -y install jwhois
查询命令:
# whois -h whois.cymru.com 8.8.8.8
[Querying whois.cymru.com]
[whois.cymru.com]
AS | IP | AS Name
15169 | 8.8.8.8 | GOOGLE - Google Inc.,US

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