Network Overview
| ASN | AS8303 |
| Organization | Westdeutscher Rundfunk Koln |
| Announced IPv4 ranges | 3 |
| Total IPv4 addresses | 64,768 |
Sample IP Ranges Announced by AS8303
| Range Start | Range End | Lookup |
|---|---|---|
149.219.0.0 |
149.219.7.255 |
Details → |
149.219.9.0 |
149.219.248.255 |
Details → |
149.219.251.0 |
149.219.255.255 |
Details → |
What Is an Autonomous System?
An autonomous system (AS) is a collection of IP networks operated by a single organization - an ISP, cloud provider, enterprise, or university - that shares a common routing policy. Each AS is identified by a unique AS number (ASN) and exchanges routing information with other systems using the BGP protocol.
Knowing which ASN an IP belongs to reveals who actually operates the network behind it - useful for fraud analysis, traffic quality assessment, and abuse investigation. Use the IP lookup tool to find the ASN for any address.
Frequently Asked Questions
What is AS8303?
AS8303 is the autonomous system operated by Westdeutscher Rundfunk Koln, announcing 3 IPv4 ranges (64,768 addresses).
Who operates AS8303?
Westdeutscher Rundfunk Koln. An autonomous system is a network under a single administrative entity that exchanges routes with other networks via BGP.
How do I check if an IP belongs to AS8303?
Enter the IP into our free IP lookup - the result shows the ASN, operator, geolocation, and VPN/datacenter flags.