What's interesting is that IP addresses are generally assigned by country, and there are databases of IP addresses versus geolocation. |
You won't be able to control who sees your location with Twitter geolocation. |
It is used for statistical and environmental analysis, market survey, banking, geolocation, and other versions. |
The IP address is recorded and the geolocation inferred from the IP address is stored in the database. |
However, when Twitter geolocation is launched, the feature will be disabled by default. |
In a nutshell, geolocation analyzes the user's IP address to guesstimate where the user is accessing the Internet. |