Network Overview
| ASN | AS17820 |
| Organization | TATA Communications Internet Services Ltd |
| Announced IPv4 ranges | 11 |
| Total IPv4 addresses | 24,576 |
Sample IP Ranges Announced by AS17820
| Range Start | Range End | Lookup |
|---|---|---|
61.12.0.0 |
61.12.3.255 |
Details → |
61.12.24.0 |
61.12.27.255 |
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61.12.100.0 |
61.12.103.255 |
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61.16.152.0 |
61.16.159.255 |
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61.16.232.0 |
61.16.239.255 |
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61.16.244.0 |
61.16.247.255 |
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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 AS17820?
AS17820 is the autonomous system operated by TATA Communications Internet Services Ltd, announcing 11 IPv4 ranges (24,576 addresses).
Who operates AS17820?
TATA Communications Internet Services 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 AS17820?
Enter the IP into our free IP lookup - the result shows the ASN, operator, geolocation, and VPN/datacenter flags.
How many IP addresses does AS17820 have?
AS17820 currently announces approximately 24,576 IPv4 addresses across 11 ranges, according to public routing data.