What is my AS Number?

It's the unique identifier of the network that your My IP address belongs to.

How can I check my ASN?

Use FindNetIP's IP lookup tool to see My IP address and location along with ASN.

What is the difference between AS Number and AS Name?

ASN is numeric; AS Name is the descriptive name of the network.

Can I see ASN for IPv6?

Yes, both IPv4 address and IPv6 are mapped to AS Numbers.

Why is AS Number important?

It helps verify My IP location, identify ISP/organization, and troubleshoot connectivity.

What is AS Number (ASN)? | FindNetIP Knowledge Base

What is AS Number (ASN)?

An Autonomous System Number (ASN) is a unique identifier assigned to a network (Autonomous System) on the internet. ASNs are used to route IP address traffic between networks using the BGP protocol (Border Gateway Protocol). Understanding your ASN helps you analyze my IP info, My IP address, and determine which network your IP address and location belongs to.

Key Points About AS Numbers

ASNs uniquely identify networks worldwide.
Used by ISPs, enterprises, cloud providers, and data centers.
Supports both IPv4 address and IPv6 networks.
Helps route IP traffic efficiently across the internet.
Provides context for My IP location and network analysis.

Example of AS Numbers

IPv4: AS141433 → ISP network (check My IP address)
IPv6: AS3209 → Global IPv6 backbone
Use an IP lookup tool to find my network IP and its corresponding ASN and AS Name.

Why AS Numbers Matter

Knowing your ASN is crucial for:

Identifying the ISP or hosting provider behind your IP address.
Analyzing IP info for security, geolocation, and troubleshooting.
Understanding routing paths and network performance.
Cross-referencing My IP address and location for network diagnostics.

How to Find My AS Number

Use an IP lookup tool to check My IP and find the associated ASN and AS Name.
Check IPv4 address or IPv6 to see which Autonomous System it belongs to.
Use the ASN information to monitor and secure your network.
Regularly verify current IP address and network information for privacy and security purposes.

Frequently Asked Questions (FAQ)

What is my AS Number? — It's the unique identifier of the network that your My IP address belongs to.
How can I check my ASN? — Use FindNetIP's IP lookup tool to see My IP address and location along with ASN.
What is the difference between AS Number and AS Name? — ASN is numeric; AS Name is the descriptive name of the network.
Can I see ASN for IPv6? — Yes, both IPv4 address and IPv6 are mapped to AS Numbers.
Why is AS Number important? — It helps verify My IP location, identify ISP/organization, and troubleshoot connectivity.