IP Addresses Explained — What Yours Reveals & IPv4 vs IPv6
Your IP address is the return address of the internet: every request you make carries it, every response needs it, and — this is the part people get wrong — it reveals dramatically less than most people fear and occasionally more than they expect. Here is what an IP actually is, what yours says about you, and how the lookup tools that map addresses to places on a map really work.
What an IP address actually is
An IP address is a numeric label that routes traffic: source address, destination address, and the network forwards packets hop by hop toward it. IPv4 — the 1981 original — uses 32 bits written as four numbers up to 255 (203.0.113.7), giving about 4.3 billion addresses, which the world exhausted long ago. IPv6 uses 128 bits written in hex groups (2405:201:3003:a17::), giving 340 undecillion addresses — enough to assign one to every atom on the surface of the earth, many times over.
| Property | IPv4 | IPv6 |
|---|---|---|
| Address size | 32-bit, ~4.3 billion | 128-bit, effectively unlimited |
| Written as | Four decimal octets | Eight hex groups |
| NAT | Required (addresses ran out) | Designed out — every device can be global |
| Configuration | Often manual/DHCP | Auto-configuration built in |
Public vs private — the address you have twice
Your router performs NAT (network address translation): inside your home, devices hold private addresses — the reserved ranges 192.168.x.x, 10.x.x.x and 172.16–31.x.x — which are meaningless outside your network. The router holds the single public IP your ISP assigned and rewrites every device’s traffic to appear from it. That is why "what is my IP" sites show one address while your phone’s Wi-Fi settings show another: the public face versus the private interior.
How IP geolocation really works
There is no GPS in an IP address. Geolocation databases are built from registration records (who was allocated which address block), routing announcements (which network advertises the block), and crowdsourced corrections — then matched to city-level granularity, with honest accuracy around 50–99% for country, poorer at city level, and essentially fiction at street level. VPN endpoints, mobile carriers (which route whole states through one gateway) and fresh address reallocations degrade it further. When a site "knows your city", that is a database lookup, and it is sometimes simply wrong.
What your IP reveals — the honest ledger
- Reveals: your ISP (or VPN provider), an approximate region — often right at country level, approximate at city — and a shared identifier sites use for rate-limiting and abuse prevention.
- Does not reveal: your name, exact address, browsing history, or anything about you personally — the link from IP to a person lives inside your ISP, released only under legal process.
- Genuinely sensitive anyway: as a shared session identifier it enables tracking across sites that lack cookies — the reason privacy-conscious browsing pairs with VPNs.
- Changes by design: most home connections get a dynamic IP that rotates on router reboot or ISP schedule; mobile IPs change constantly.
Using LND AI IP Detector
- Open the toolGo to namansoni.in/ip-detector — completely free, no sign-up.
- Look up an IPCheck your own address or query any IP to see its registered details.
- Read with the right confidenceISP and country are usually solid; treat city-level results as approximate and street-level as unreliable by nature.
- Diagnose your setupCompare the shown IP with your device’s local address to see the public/private NAT split in action — or confirm a VPN is active by seeing its endpoint instead of your ISP’s.
Frequently asked questions
What is an IP address?
A numeric label that routes traffic on the internet — the return address every packet carries. IPv4 addresses are 32-bit (four decimal numbers, ~4.3 billion total, long exhausted), which is why IPv6 exists: 128-bit hexadecimal addresses with effectively unlimited space. Sites you visit see your public IP; it is how responses find their way back to you.
What does my IP address reveal about me?
Your ISP, an approximate region (reliable at country level, approximate at city level), and a shared identifier sites use for rate-limiting and abuse prevention. It does not reveal your name, home address or browsing history — the mapping from IP to person exists only inside your ISP and is released under legal process. As a shared identifier it does enable cross-site tracking, which is why VPN users route around it.
How does IP geolocation work if there is no GPS?
Databases compiled from address-block registrations, network routing announcements and crowdsourced corrections, matched to city-level granularity. Country accuracy is decent, city accuracy is mixed, and street-level precision is essentially fiction — mobile carriers can route entire states through one gateway, and fresh reallocations confuse the databases for months. When a site shows your city wrongly, the database is simply wrong.
Why is the IP on my device different from what websites show?
Your device holds a private address (192.168.x.x, 10.x.x.x or 172.16–31.x.x) that only means something inside your home network. Your router performs NAT — rewriting all your devices’ traffic through its single public IP. Websites see the public address; your phone settings show the private one. Everyone behind your router shares that public IP.
What is the difference between IPv4 and IPv6?
IPv4 is the 1981 protocol: 32-bit addresses (~4.3 billion), written as four decimal octets, now exhausted and kept alive by NAT sharing. IPv6 is the successor: 128-bit addresses written in hexadecimal — effectively unlimited space, no NAT needed, auto-configuration built in. Both run side by side across the internet today.