What Is My ISP
Your internet service provider, organisation and ASN are detected from the public IP address of your connection when the page loads.
- Runs on our servers
- Free to use
- API available →
About this tool
Every public IP address belongs to a block registered to an organisation, usually the internet service provider that assigned it to you. What Is My ISP reads the address your connection uses, looks it up and shows the ISP, the organisation, the autonomous system number and the location of the network, which is handy for confirming a VPN, for support tickets and for understanding why a site treats you as coming from somewhere else.
See more about your address on My IP Address and the IP Blacklist Check.
How to use it — quick steps
- 01
Let the page load
Your public IP is read from the connection and looked up automatically; nothing to type.
- 02
Read the result
The boxes show your ISP and IP; the table adds the organisation, ASN, network type and location.
- 03
Dig deeper if needed
Follow the link to the full IP Blacklist Check for reputation, anonymity flags and more details.
Key features of this tool
ISP and ASN
The provider name, the organisation registered for the address block and the autonomous system that announces it.
Location context
Country, region and city where the network is registered, plus the reverse DNS of your address.
Just your connection
Behind a VPN you will see the VPN provider, which is a quick way to confirm that the tunnel is active.
Frequently asked questions
Why is the ISP different from my contract?
Many providers resell capacity from a larger carrier, and mobile operators route traffic through partners; the name shown is the organisation that owns the IP block.
I am on a VPN, what will I see?
The VPN provider or its hosting company. If you still see your home ISP, the VPN is not routing your browser traffic.
Where does the data come from?
The APIVoid IP Reputation API, which maps IP blocks to ISPs, organisations and ASNs using the regional internet registries.
Is my IP stored?
No, the lookup is performed live and nothing is written to a database.