Guides · Your public IP address
What Is My ISP? ISP vs ASN, AS Organization & Network Owner
Understand what your ISP is, what ASN and AS organization mean, why the result may be a VPN, host or carrier, and how to identify your real provider.
Your Internet Service Provider (ISP) is the company that supplies your internet connection. An Autonomous System Number (ASN) identifies a network that exchanges routes on the internet. The AS organization shown by MyIP Info is the operator associated with the network announcing your public IP; it is useful information, but it is not always the same company as your retail ISP.
What an ISP actually provides
An ISP sells or provides internet access to a home, phone or organization. It may be a cable or fiber company, a mobile carrier, a regional wireless provider, a university, an employer or another connectivity provider. Your account, contract and support relationship normally identify this company.
The public IP you see online is an address used for the connection, not an account identifier. One ISP can use another company's upstream network, and multiple providers can appear between your router and a website. This is why a simple AS organization label cannot prove who bills you for service.
What ASN and AS organization mean
An Autonomous System is a network under a common routing administration. Its ASN is a number used in BGP routing and in the allocation of IP prefixes. The AS organization is the entity associated with that number in network and registry data.
For example, AS15169 is associated with Google. In a lookup, that label describes a network operated by Google; it does not mean the person making the request is a Google customer or employee. An ASN can identify a carrier, cloud platform, university, VPN provider, content network or enterprise.
Why the reported network may not be your ISP
A VPN or proxy normally replaces the visible network exit with its own server, so the result belongs to the VPN or hosting provider. A corporate gateway can route employees through a headquarters or cloud security network. Split tunneling can make different websites report different networks for the same device.
Mobile operators use dynamic addressing and CGNAT, placing many subscribers behind shared public addresses. Your home ISP can also buy upstream transit from another carrier. In each case, the AS organization is accurate for the announcing network but may not be your retail provider.
How to identify your actual provider
Start with your bill, customer portal, installation email or router documentation. A router's WAN status may show the upstream connection and address, while your ISP's official support can confirm the service attached to your line or SIM. These sources are more reliable for identifying the retail provider than a public IP lookup.
Use RDAP or WHOIS contacts for network administration and abuse routing, not to ask a registry who owns your personal account. Never send contracts, identity documents or account credentials to an unknown lookup website. Registry contacts belong to the allocated network, not necessarily to the person using it.
How to read MyIP Info fields correctly
On the home report, treat 'Network provider' as a convenient label for the network organization, not a guaranteed retail ISP. The ASN gives you a routing identifier to investigate. On the arbitrary IP Lookup page, compare the AS organization, ISP label, RDAP registrant and reverse DNS rather than assuming they all describe the same role.
If the result looks unexpected, check whether a VPN, work network, mobile connection or hosted environment is active. Run the lookup on another trusted connection only when appropriate. The result can tell you which network is visible now; it cannot reveal your subscription, exact address or personal identity.
Summary
Your ISP is the organization supplying your service; an AS organization is the operator of the network announcing the address used now. They can match, but they do not have to. Read ASN, registration and connection data together, and use your contract or the provider's official account information to identify the retail ISP.