# What Is My ISP?

Find the public IP addresses your browser uses and the networks announcing them. IPv4 and IPv6 are checked separately.

This check contacts [ipify](https://www.ipify.org/) to find your public addresses and sends those addresses to RIPEstat for network information. This tool does not save the results or send them to any other service.

Select Check My Connection to start.

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## IPv4

Not checked.

Public IP

–

Announced Prefix

–

Network and ASN Holder

–

## IPv6

Not checked.

Public IP

–

Announced Prefix

–

Network and ASN Holder

–

## What the Result Shows

The public IP is the address visible to the lookup service. A VPN, proxy or shared mobile connection can show a different network from the provider on your bill. The result identifies the network announcing the address, which may be an upstream provider.

An autonomous system number (ASN) identifies a routing network. The holder is its registered name. The announced prefix is the address range containing your IP in RIPEstat's routing data; it is not your local Wi-Fi subnet.

Routing data comes from [RIPEstat Network Info](https://stat.ripe.net/docs/data-api/api-endpoints/network-info.html) and holder names from [RIPEstat AS Overview](https://stat.ripe.net/docs/data-api/api-endpoints/as-overview.html). A prefix can have more than one announcing ASN; each is shown when available.

If a check fails, the address family may be unavailable, the service may be unreachable, or your browser or network may block the request. Failure alone does not establish whether your connection supports IPv6.

Continue with the [ping test](https://netavo.com/tools/ping-test) or [MTU and CGNAT test](https://netavo.com/tools/mtu-test) to investigate connection behaviour.

## Frequently Asked Questions

### Why Is the Network Name Different From My ISP?

The Netavo lookup shows the network announcing your public address. This may be an upstream network, VPN or proxy provider rather than the retail ISP on your bill.

### Does a Failed IPv6 Check Mean I Have No IPv6?

No. The Netavo lookup may also fail because the lookup service is unavailable or a browser or network blocks the request.

## Work With Us

Explore [ISP network services](https://netavo.com/services/isp) and [WAN connectivity](https://netavo.com/services/connectivity).

[Work With Us](https://netavo.com/work-with-us)

Source: https://netavo.com/tools/what-is-my-isp