Network Overview

ASNAS9378
OrganizationJCOM Co., Ltd.
Announced IPv4 ranges12
Total IPv4 addresses43,008

Sample IP Ranges Announced by AS9378

Range StartRange EndLookup
27.113.248.0 27.113.251.255 Details →
27.116.0.0 27.116.15.255 Details →
61.215.128.0 61.215.151.255 Details →
61.215.160.0 61.215.175.255 Details →
103.3.4.0 103.3.7.255 Details →
110.93.96.0 110.93.111.255 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 AS9378?

AS9378 is the autonomous system operated by JCOM Co., Ltd., announcing 12 IPv4 ranges (43,008 addresses).

Who operates AS9378?

JCOM Co., Ltd.. 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 AS9378?

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