IP to ISP
Find which ISP or organization an IP address (or domain) belongs to. See the provider name, organization, and often ASN. Useful for abuse reports, hosting checks, and understanding who owns an IP.
Look Up ISP by IP
Enter an IP or domain to see its ISP and organization.
What Is IP to ISP?
IP to ISP is a lookup that shows which Internet Service Provider or organization is associated with an IP address. Every IP block is allocated to a company or ISP, and that information is public in regional registries. Our tool pulls that data so you can see who “owns” the IP — whether it’s a home ISP, a hosting provider, or a mobile carrier.
That’s useful when you need to report abuse, check where your traffic is coming from, or confirm a server’s hosting provider. For full details — including location, reverse DNS, and VPN/proxy flags — use our IP lookup or IP location finder. To see your own ISP, use What is my IP.
How to Use IP to ISP
Enter any IPv4, IPv6, or domain in the box above and click “Get ISP.” We show the ISP name, organization, and usually the AS (autonomous system) number. No signup. For hostname (reverse DNS), use reverse DNS lookup; for latency or path, use our ping test or traceroute tool.
Features
- ISP and organization for any IP or domain
- Often includes AS number
- Free, no signup, no storage
- Handy for abuse and hosting checks
Why Use This Tool
Abuse teams use it to identify the right ISP to contact. Developers use it to see if traffic is from a datacenter or residential ISP. Pair it with DNS lookup for domain checks, or IP blacklist check for email reputation.
FAQs
What does IP to ISP mean?
It means finding which Internet Service Provider (or organization) owns or uses an IP address. Our lookup shows the ISP name and often the organization.
Is ISP lookup accurate?
Yes for the owning organization. The displayed name comes from regional registries and is usually correct. Some IPs show the parent company or brand.
Can I find the ISP for a domain?
Yes. Enter the domain and we resolve it to an IP, then show the ISP (and location) for that IP.
Is IP to ISP free?
Yes. Our tool is free with no signup. We don’t store your lookups.
Why would I need to know an IP’s ISP?
Common uses: abuse reports, troubleshooting connectivity, verifying hosting provider, or understanding traffic source.