Yes, for most regular users if the police have co-operation from network providers. All IP addresses have an owner. Owners can be tracked. For most cases, the owner assigns an IP temporarily to you when you use their network.

Does a law enforcement agency in the U.S. have to use before the government can issue it. A government agency can use a subpoena to compel Google to disclose only specific types of information listed in the statute. For example, a valid subpoena for your Gmail address could compel us to disclose the name that you listed when creating the account, and the IP addresses from which you created the Verizon Wireless | Subpoena Info for Legal Professionals Nov 14, 2018

Utilizing IP Addresses to Subpoena Internet Service

choose to send an email to this address, it must be from a valid and official government or law enforcement email address. The majority of subpoenas, search warrants, and court orders that Apple receives seek information regarding a particular Apple device or customer and the specific service(s) that Apple may provide to No Warrant, No Problem: How the Government Can Get Your

An IP address (the IPv4 version, which is the most common) consists of a string of numbers, separated by periods (dots). Each IP address is separated into four segments by three periods. An example would be: 66.171.248.170.

Legal Process Guidelines - Apple Inc. choose to send an email to this address, it must be from a valid and official government or law enforcement email address. The majority of subpoenas, search warrants, and court orders that Apple receives seek information regarding a particular Apple device or customer and the specific service(s) that Apple may provide to No Warrant, No Problem: How the Government Can Get Your But it will supply basic information, such as a user's email address or the IP addresses of the computers from which someone recently accessed an account, under a subpoena. Subpoena Google & Gmail: Some Common Misconceptions-Cyber