How do police find your door through an IP address? I was in a cold sweat after reading this!

When facing the computer screen late at night, some people may mistakenly think that they can do whatever they want under the anonymous network. But in fact, when the law enforcement agency obtains a seemingly ordinary combination of numbers through a series of technical means, the specific location of this person has been accurately marked on the three-dimensional map and displayed with a striking red mark.

Today, we are going to discuss such an amazing technology-it can accurately locate the IP address, which makes many people who attempt to engage in illegal activities on the Internet feel scared. This technology is not only powerful but also very effective, and plays an important role in protecting network security.

"Latitude and longitude" in the digital world
When you first enter the Internet world, the operator will automatically generate a unique file for you. This file compares the data of 13 root servers around the world and the information of the public security-specific geographic database, so that each IP address can be accurately located, just like installing a Beidou navigation chip.

Special reminder: The positioning error of enterprise-level IP does not exceed the size of a football field, and home broadband is like an electronic fence confined to a range of 3 kilometers (imagine drawing a circle with your home as the center...)


The operator's "God's Perspective"
The BRAS equipment in the telecommunications room can be called a modern version of "clairvoyance". It can accurately lock:

Street-level positioning (error ≤ 500 meters)
Community-level locking (accurate to the unit building)
Under special circumstances, it can even penetrate the wall to mark the house number



The most deadly "digital fingerprint"
The operator has an unknown killer trick - 65535 source port numbers are like the last number of an ID card, and each family corresponds to a unique code. When this digital combination appears in a network packet, it is equivalent to sending the police the precise location of "I live in X unit, X building, XX community".

Having said that, I can't mention more. I recommend two websites that can accurately find IP locations.


Finally, I have an interesting question. Have you noticed that when you use a proxy or an iPhone to check your location, you sometimes find yourself in a police station or other government offices? Do you know why? Take a guess.