Network Overview

ASNAS51010
OrganizationNational Agency of Public Registry
Announced IPv4 ranges2
Total IPv4 addresses3,072

Sample IP Ranges Announced by AS51010

Range StartRange EndLookup
178.249.16.0 178.249.23.255 Details →
185.100.76.0 185.100.79.255 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 AS51010?

AS51010 is the autonomous system operated by National Agency of Public Registry, announcing 2 IPv4 ranges (3,072 addresses).

Who operates AS51010?

National Agency of Public Registry. 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 AS51010?

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