How to find the IP address?

[K88]

Is there any way to find out IP address from my login. If suppose i log on any website account then What can people tell from my IP address?

[Zachary]

Every device connected to the public Internet is assigned a unique number known as an Internet Protocol (IP) address.
You can tell the physical location of the internet service provider from ip address. there are many sites like find-ip-address.org and whois.sc. IP Address is an exclusive number all information technology devices use which identifies and allows them the ability to communicate with each other on a computer network.The original designers of TCP/IP defined an IP address as a 32-bit number and this system, now named Internet Protocol Version 4 (IPv4), is still in use today.

[Big Fish]

InterNIC—Public Information Regarding Internet Domain Name Registration Services it is use to find IP Address Location and it is use for tracking IP addresses.

[Shen]

The WHOIS and IPWHOIS toolsfind contact information for the owner of specified domain/hostname. Contact email addresses will not be obfuscated, as they are on the public page. IPWhois Tool is a free graphical client that connects to WHOIS servers located around the world to look up domain registration information...IPWHOIS is similar to WHOIS - finds contact information for the owner of the domain associated with the specific IP address.

[Fabkins]

Quite a few online websites that provide this info:

http://www.whatismyip.com/

Was one I found randomly. This IP is your external IP, ie how the world sees you, the IP from your router. Unless you can access the router, I dont think there is another way of finding out. Even "tracert" wont return your external IP to my knowledge.