Network Overview

ASNAS4385
OrganizationRochester Institute of Technology
Announced IPv4 ranges2
Total IPv4 addresses65,792

Sample IP Ranges Announced by AS4385

Range StartRange EndLookup
129.21.0.0 129.21.255.255 Details →
192.77.9.0 192.77.9.255 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 AS4385?

AS4385 is the autonomous system operated by Rochester Institute of Technology, announcing 2 IPv4 ranges (65,792 addresses).

Who operates AS4385?

Rochester Institute of Technology. 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 AS4385?

Enter the IP into our free IP lookup - the result shows the ASN, operator, geolocation, and VPN/datacenter flags.