Internet Connection Info

Understanding IP Addresses

An IP address (Internet Protocol address) is the numerical label assigned to your internet connection that allows other devices to find and communicate with you. There are two versions in use today. IPv4 addresses look like 192.168.1.1 — four groups of numbers separated by dots, providing roughly 4.3 billion unique addresses. That sounded like plenty in the 1980s, but with billions of devices now connected, IPv4 addresses have effectively run out.

IPv6 was designed to solve this shortage. Its addresses look like 2001:0db8:85a3::8a2e:0370:7334 — eight groups of hexadecimal digits, providing 340 undecillion unique addresses (enough for every grain of sand on Earth to have trillions). Most modern ISPs now support both protocols. Your public IP address, shown by this tool, is the address the rest of the internet sees — it is assigned by your ISP and shared by all devices on your local network behind your router. Your private IP address (like 192.168.x.x or 10.x.x.x) is used only within your home network and is not visible externally.

What Your ISP Reveals About Your Connection

Your public IP address carries more information than you might expect. Through IP geolocation, anyone can determine your approximate city, region, and country — typically accurate to within 20-50 miles. Your ISP name is also embedded in the IP registration records, so websites know whether you are on Comcast, AT&T, Vodafone, or any other provider. This information is used for content delivery optimization, regional content licensing, fraud detection, and targeted advertising.

A VPN (Virtual Private Network) replaces your visible IP address with the VPN server's address, masking both your location and ISP. If this tool shows a different city or ISP than expected, you likely have an active VPN or proxy connection. Organizations and universities often route traffic through centralized gateways, which can make your connection appear to originate from a different location than your physical one.

Connection Types and Their Characteristics

The type of internet connection you have fundamentally determines your speed, latency, and reliability. Fiber optic connections transmit data as light pulses through glass strands, delivering symmetrical speeds of 1 Gbps or more with latency under 5ms — the gold standard for both speed and consistency. Cable internet uses the same coaxial network as cable TV, offering download speeds up to 1 Gbps but typically much slower uploads (20-50 Mbps), with speeds that degrade during peak neighborhood usage.

DSL (Digital Subscriber Line) runs over copper telephone lines and tops out around 100 Mbps in ideal conditions, with actual speeds heavily dependent on your distance from the provider's equipment — beyond 2-3 miles, speeds drop substantially. Satellite internet (Starlink, HughesNet) provides coverage virtually anywhere but introduces 20-40ms of latency on low-earth orbit systems and 600ms+ on traditional geostationary satellites, making it challenging for real-time applications like video calls and gaming. 5G cellular is emerging as a home internet alternative, with fixed wireless access delivering 100-300 Mbps in covered areas.