IP Browser Tools

NETWORK TOOL

What is My ISP?

Your Internet Service Provider controls your connection to the internet. See yours — and what they can see about you.

YOUR ISP

ISP NAME

Detecting…

AS Number (ASN) —
Organization —
Your IP —
Country —
Region —
City —
Timezone —
Connection Type —

WHAT YOUR ISP KNOWS

Every website you visit
Your real IP address
Connection timestamps
Data usage volumes
DNS query history (unless using DoH)

PROTECT YOURSELF

Use a trusted VPN service
Enable DNS over HTTPS (DoH)
Use Tor Browser for anonymity
Check for WebRTC leaks

Related Tools

My IP AddressMy LocationDNS Leak Test

How ISP Detection Works

An Internet Service Provider (ISP) is a company that provides individuals, businesses, and organizations with connectivity access to the internet. When you connect, your ISP dynamically leases you a public IP address from its pre-registered blocks of network addresses.

All blocks of IP addresses on the internet are managed by Regional Internet Registries (RIRs) like ARIN, RIPE, APNIC, or LACNIC. These registries log which ASN (Autonomous System Number) and company name owns each block of IPs. Our tool performs a secure real-time search on these registration databases to identify the company name mapped to your IP, revealing your ISP.

Understanding Autonomous Systems (ASNs)

The internet is a network of networks. Each major network (belonging to an ISP, university, cloud datacenter, or enterprise) is called an Autonomous System (AS).

To coordinate routing, each AS has a unique number assigned to it — the ASN. For example, Comcast uses AS7922, and Google uses AS15169. By checking your ASN, engineers can trace routing paths, debug packet loss, or identify network latency.

Frequently Asked Questions

What is an ISP?
An ISP (Internet Service Provider) is the company that provides you with access to the internet, such as Comcast, AT&T, Verizon, Vodafone, or BT. They assign you a public IP address and route your network traffic to the rest of the web.
How is my ISP detected?
When you connect to a server, your public IP address is inspected. This IP belongs to an Autonomous System (AS) block registered to a specific network operator. The tool queries registration databases to identify the owner of that AS block (ASN), which reveals your ISP.
What is an ASN?
ASN stands for Autonomous System Number. An Autonomous System is a collection of IP subnets controlled by a single large network operator (like an ISP or cloud company). The ASN is the unique identifier used by global routing protocols (like BGP) to route traffic between networks.
Why does the tool show a hosting company instead of my ISP?
If the checker shows a hosting company (like Amazon Web Services, DigitalOcean, or Linode) or a proxy network, you are likely connected to a VPN, proxy, or corporate security gate that routes your traffic through a datacenter.