Network Overview

ASNAS5213
OrganizationUnited States Department of Defense (DoD)
Announced IPv4 ranges1
Total IPv4 addresses2,048

Sample IP Ranges Announced by AS5213

Range StartRange EndLookup
139.244.80.0 139.244.87.255 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 AS5213?

AS5213 is the autonomous system operated by United States Department of Defense (DoD), announcing 1 IPv4 ranges (2,048 addresses).

Who operates AS5213?

United States Department of Defense (DoD). 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 AS5213?

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

How many IP addresses does AS5213 have?

AS5213 currently announces approximately 2,048 IPv4 addresses across 1 ranges, according to public routing data.