IP2Location D Library
This D library provides a fast lookup of country, region, city, latitude, longitude, ZIP code, time zone, ISP, domain name, connection type, IDD code, area code, weather station code, station name, mcc, mnc, mobile brand, elevation, usage type, address type and IAB category from IP address by using IP2Location database. This library uses a file based database available at IP2Location.com. This database simply contains IP blocks as keys, and other information such as country, region, city, latitude, longitude, ZIP code, time zone, ISP, domain name, connection type, IDD code, area code, weather station code, station name, mcc, mnc, mobile brand, elevation, usage type, address type, IAB category, district, autonomous system number (ASN) and autonomous system (AS) as values. It supports both IP address in IPv4 and IPv6.
This library can be used in many types of projects such as:
select the geographically closest mirror
analyze your web server logs to determine the countries of your visitors
credit card fraud detection
software export controls
display native language and currency
prevent password sharing and abuse of service
geotargeting in advertisement
The database will be updated on a monthly basis for greater accuracy. Free LITE databases are available at https://lite.ip2location.com/ upon registration.
The paid databases are available at https://www.ip2location.com under Premium subscription package.