Open the What Is My IP tool and it tells you a lot about a little string of numbers: your IP, its IPv4/IPv6 form, the ASN and organization behind it, the city and country the databases associate with it, and your timezone. Here's what each field really is — and what it isn't.
The address itself: IPv4 vs IPv6
Your public IP is the address other servers use to send data back to you. Two families exist side by side:
- IPv4 — 32-bit,
203.0.113.7. The internet ran out of fresh ones in 2011; everyone else is behind NAT or carrier-grade NAT. - IPv6 — 128-bit,
2001:db8::a:b:c:d. Plenty of room, but not universally deployed — which is why most users see IPv4 while their network is technically IPv6-capable.
The tool reports both when available and flags which family the request actually arrived over.
ASN and org: the who behind the address
Every IP belongs to a network operated by an organization — an Autonomous System. Each AS has a public number:
AS15169— Google LLCAS13335— CloudflareAS16509— Amazon (AWS)AS8075— Microsoft
When you connect from home, your IP belongs to your ISP's AS; from a coffee shop, to the shop's provider; through a VPN, to the VPN provider's AS. The ASN + org pair is often more identifying than the raw IP: services use it for abuse reports, geo-targeting and bot detection.
City, region, country: what geolocation really is
Geolocation databases (MaxMind, ip2location, ipinfo) map IP ranges to coordinates. The precision is honest — and modest:
- Country: reliable (95%+).
- Region/city: good for fixed-line ISPs, fuzzy for mobile.
- Exact address: essentially never. The tool shows a map link to the approximate location, not a doorstep.
Your "location" shifts when you switch networks, when your ISP changes routing, or when you use a VPN — because the IP's location is the network's location, not yours.
Timezone: a hidden consistency check
The timezone field is derived from the IP's location. It's one of the quiet signals anti-fraud systems use: if a login comes from a US IP but the browser claims a Dubai timezone, that's a mismatch worth flagging.
VPN and Tor detection
The tool reports isVpn and isTor — with an honest note that the field needs a paid threat-intel feed (ipinfo's security API, MaxMind's risk scores, or DNSBL-style checks) to be accurate. Free heuristics exist: known VPN exit ASNs, hosting providers that sell proxies, Tor exit-node lists. The giveaway pattern is usually an IP whose ASN is a cloud provider (AS16509 AWS, AS14061 DigitalOcean) when the user claims to be at home — cloud ASNs are a strong proxy for "this is a datacenter, not a person".
What you can do with this
- Debug your own routing: see which country your traffic exits from and whether your ISP or VPN is doing something surprising.
- Validate a server config: run the tool with any IP (the
{ip}field) to check how an address classifies before you block or allow it. - Understand what others see: it's the same data a website's analytics gets when you visit.
curl -X POST https://yas.sh/api/v1/tools/what-is-my-ip -d '{"ip":"8.8.8.8"}'
Returns ASN AS15169, org Google LLC, city Mountain View, timezone America/Los_Angeles — everything a site knows about Google's resolver before you've sent a single byte of "personal" data. Your IP is public by design. Knowing what it says about you is the first step to deciding whether you care.
What an IP lookup reveals
An IP lookup on the public address returns more than a number. The tool surfaces the associated metadata that shapes how you are seen on the internet:
- The IP address and its version (IPv4 or IPv6).
- Geographic attribution — the country and, at a coarse level, the region a service would associate with the address.
- The ASN and organization — which network operator owns the address block, which is what services actually use to identify you at scale.
- Flags and detection signals — whether the address appears to be a VPN, a proxy, a hosting/data-center address, or a residential connection.
Understanding these layers explains why different services appear to "see" you differently, and it is the practical foundation for the IP tool and the broader what-is-my-ip page.
Reading the ASN and VPN signals
Two of the most useful signals deserve attention. The ASN tells you which network owns the address — for example, whether you are on a mobile carrier, a broadband ISP, or a cloud host. This is why a "what is my IP" tool can distinguish a home connection from a server or a VPN exit. The VPN/proxy flag is what privacy tools surface: many commercial VPN and hosting ranges are known and flagged, which is why a VPN changes your visible IP but does not make you look like a residential home connection. Recognizing these signals lets you interpret what your IP is telling the internet about you.
Why this matters for privacy and debugging
The value of the lookup is practical. For debugging, it confirms which exit address your traffic actually uses — essential when diagnosing why a site treats you as being in a different country, or whether your VPN is genuinely routing as expected. For privacy, it makes the trade-offs concrete: a VPN moves your address and encrypts the link, but it hands trust to the VPN provider and still shows a flagged exit; full anonymity is a different, harder goal. Being honest about what an IP does and does not reveal helps you make sensible choices rather than over- or under-investing in protection.
A practical follow-up
Once you understand what your IP reveals, you can act sensibly: verify your VPN is routing as intended by re-checking the address, confirm you are not unintentionally exposing a work network when you mean to be private, and use the ASN/geo signals to diagnose why a service treats you a certain way. Awareness of what the lookup shows is what lets you turn a number into a useful, deliberate choice.