腾讯的IP地址API接口地址：http://fw.qq.com/ipaddress
新浪的IP地址查询接口：http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js
结果：
var remote_ip_info = {"ret":1,"start":"223.223.192.0","end":"223.223.207.255","country":"\u4e2d\u56fd","province":"\u5317\u4eac","city":"\u5317\u4eac","district":"","isp":"","type":"","
新浪多地域测试方法：http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=218.192.3.42
结果：
var remote_ip_info = {"ret":1,"start":"218.192.0.0","end":"218.192.7.255","country":"\u4e2d\u56fd","province":"\u5e7f\u4e1c","city":"\u5e7f\u5dde","district":"","isp":"\u6559\u80b2\u7f51","type":"\u5b66\u6821","desc":"\u5e7f\u5dde\u5927\u5b66\u7eba\u7ec7\u670d\u88c5\u5b66\u9662\u6559\u80b2\u7f51"};
搜狐IP地址查询接口（默认GBK）：http://pv.sohu.com/cityjson
搜狐IP地址查询接口（可设置编码）：http://pv.sohu.com/cityjson?ie=utf-8
view sourceprint?
06 | （json格式的）国家 、省（自治区或直辖市）、市（县）、运营商 |
09 | {"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317", |
10 | "region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1", |
11 | "country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000", |
12 | "county_id":"-1","isp_id":"100017"}} |
13 | 其中code的值的含义为，0：成功，1：失败。 |