IP地理定位工作如何？ [英] How does IP geolocating work?

问题描述

我不是在寻找这样做的服务。

解决方案

将IP地址映射到地理定位是通过表完成的，其中IP地图到特定的位置。但是，这个位置并不需要准确，因为IP地址不包含任何有关其位置的信息，这些都是近似的。

从 http://en.wikipedia.org/wiki/Geolocation_software ：

IP地址数据的主要来源是地区互联网注册管理机构，这些注册机构在位于各自服务区域的组织之间分配和分配IP地址：

b
$ b

• 美国互联网号码注册局（ARIN）


• RIPE网络协调中心（RIPE NCC）


• 亚太网络信息中心（APNIC）
  
• 拉丁美洲和加勒比互联网地址注册局（LACNIC） 非洲网络信息中心（AfriNIC）
  

次要来源包括：

<李>数据minin g或用户提交的地理位置数据。例如，天气网站可能会要求访问者输入城市名称以查找其当地预测。另一个例子是将用户的IP地址与其账户信息中的地址信息配对。

• 互联网服务提供商提供的数据。


• 合并来自不同供应商的数据库。


• 从邻近的C类范围[2]猜测和/或从网络中获取的数据
。

准确性得到改善：

• 数据清理过滤或识别异常情况。
  
• 用户提交的数据的统计分析。

I'm not looking for a service that does this. I'm just curious as to how geolocation works.

解决方案

Mapping IP addresses to geolocations is done via tables, where an IP maps to a particular location. This location, however, does't need to be accurate, since IP addresses don't carry any information about their locations, these are approximated.

From http://en.wikipedia.org/wiki/Geolocation_software:

The primary source for IP address data is the regional Internet registries which allocate and distribute IP addresses amongst organizations located in their respective service regions:

• American Registry for Internet Numbers (ARIN)
• RIPE Network Coordination Centre (RIPE NCC)
• Asia-Pacific Network Information Centre (APNIC)
• Latin American and Caribbean Internet Address Registry (LACNIC)
• African Network Information Centre (AfriNIC)

Secondary sources include:

• Data mining or user-submitted geographic location data. For example, a weather web site might ask visitors for a city name to find their local forecast. Another example would be to pair a user's IP address with the address information in his/her account profile.
• Data contributed by internet service providers.
• Merging databases from different suppliers.
• Guesstimates from adjacent Class C range[2] and/or gleaned from network hops.

Accuracy is improved by:

• Data scrubbing to filter out or identify anomalies.
• Statistical analysis of user submitted data.

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