Requires iPhone OS 3.0 or later.
Log your IP address with IP Address Logger, the easy, fun global/local
IP addresses logging app designed for those who are curious about your
global IP address which will be seen by outside world.
You have two local IP addresses on iPhone: one from cellular data connection (e.g. 3G/EDGE) and the other from Wi-Fi connection.
Global IP address (a.k.a primary IP address) is the IP address which outside world would see as your IP address and global IP address is user’s IP address which some websites track and record if any.

You can export your IP address records by e-mail to yourself or others with the CSV (Comma-Separated Values) format attachment. Your records can be opened up with your favorite spreadsheet application or a native viewer in any iOS devices as well.

Add your current global/local IP addresses of iPhone.
• Add IP addresses of iPhone with date and time.
• Global IP address is determined by primary local network connection and Wi-Fi connection is preferable to cellular data connection.
• Keep track of IP address changes over the time.

Export your IP address records by e-mail or to clipboard.
• Send e-mail to yourself or others with your logs in CSV format.
• Copy IP address to clipboard: To paste an IP address to other apps such as Notes.
• Further analysis can be done with this CSV file by yourself if needed.