IP2Location.com IP Address Geolocation to Country, City, Region, Latitude, Longitude, ZIP Code, ISP, Domain Name, Time Zone, NetSpeed, IDD, Country Code, Area Code, Weather Station Code, Weather Station Name, Usage Type and Elevation Database.

IP2Location.com offers some free tools:

• Applications - IP2Location Application (AP) is a free standalone software that enables end-users to detect country, region, city, latitude, longitude, ZIP code, ISP, domain name, timezone, connection speed, IDD code, area code, weather station code, weather station name, MCC, MNC, mobile brand name, elevation, and usage type by using an IP address.
• Firewall List by Country - Select the countries you want to block, IP address version (IPv4 or IPv6), output format and press the "Download" button. The output format supported are Apache .htaccess, Linux iptables, CIDR, Netmask, Inverse Netmask, IIS web.config and Cisco ACL.
• Firewall List by Search Engine - Select the search engines you want to whitelist, output format and press the "Download" button.The output format supported are Apache .htaccess, iptables (CIDR), Netmask, Inverse Netmask, IIS web.config and Cisco ACL.
• Redirect Visitors by Country - Do you want to redirect visitors by country? Select the countries you want to redirect and the URLs of destination. The programming languages supported are PHP, ASP, ASP.NET, JSP, Perl and .htaccess.
• Email Tracer - This is a free service to trace the email path from sender's location to recepient's mail server using IP addresses in the email header.
• Traceroute - This is a free service to traceroute IP address using multiple servers in different locations.
• Downloader Script - This is a command line script to download IP2Location™ database from the server. Subscribers can use this script to automate the download process without visiting the download area through browser.
• Excel Add-In - IP2Location Excel Add-In is a free add-in that enables end-users to detect country, region, city, latitude, longitude, ZIP code, ISP, domain name, time zone, connection speed, IDD code, area code, weather station code, weather station name, MCC, MNC, mobile brand name, elevation, and usage type by using an IP address as input parameter.
• Extensions / Plugins - Free Extensions/Plugins
• Widgets - Free widgets to display visitor geolocation information on your website. Just copy and paste the widget code below into your webpages.