ASN Lookup Tool
Quickly perform an asn lookup to reveal the organization, IP ranges, routing details, and network ownership behind an autonomous system number.
What Is an ASN Lookup Tool?
An ASN lookup tool helps identify who controls specific IP address ranges and how they connect to the global internet routing infrastructure. It reveals networks managed by ISPs, hosting providers, or enterprises.
Understanding ASNs allows network engineers, analysts, and cybersecurity experts to trace routing paths, monitor network ownership, and investigate suspicious activity online.
How to Use the ASN Lookup Tool
- Enter an IP Address or ASN Number: Type the target IP or ASN into the search box.
- Click “Lookup ASN”: The system retrieves live data from global routing databases.
- View ASN Info: See the organization, announced prefixes, country, and registry details.
- Analyze Connected Networks: Explore upstream and downstream peers and routing paths.
Key Features of Our ASN Lookup Tool
- Real-Time ASN Data Retrieval from global internet registries
- Supports Both IPv4 and IPv6 Addresses
- Displays BGP Prefixes and Peering Information
- Shows Country, Registry (ARIN, RIPE, APNIC, etc.), and ISP Name
- Fast, Secure, and Free – No Sign-Up Required
- Mobile and Desktop Optimized Interface
Why Use an ASN Lookup Tool?
- Identify the Organization Behind an IP Address
- Monitor and Trace Network Ownership
- Analyze BGP Routing and Network Relationships
- Support Cybersecurity Investigations and Threat Intelligence
- Validate Hosting Providers and Data Centers
Who Can Benefit from ASN Lookup?
- Network Engineers & Administrators
- Cybersecurity Analysts & Forensic Experts
- ISPs and Hosting Providers
- Researchers & Academic Institutions
- Developers Working on IP-based Applications
What Data Is Shown in an ASN Lookup?
- ASN Number and Name: Unique identifier and registered name.
- Organization or ISP: Entity that owns the ASN.
- Country and Region: Registration location of the ASN.
- BGP Announced IP Ranges: Complete list of prefixes announced.
- Registry Info: Source registry, e.g., ARIN, RIPE, APNIC, LACNIC.
- Peering and Upstream Provider Details: Connected networks shaping internet routing.
Frequently Asked Questions (FAQs)
What is an ASN, and why is it important?
An ASN is a unique identifier for networks. It defines routing policies and ensures stable internet communication.
Can I look up ASN details using an IP address?
Yes, entering an IP allows the tool to display the associated network details.
How accurate is the ASN information?
Data comes from global registries and is updated regularly, ensuring accuracy.
What’s the difference between an ASN and an IP address?
An ASN identifies a network as a whole, while an IP refers to a specific device or server within that network.
Is this tool free to use for commercial purposes?
Yes, the ASN lookup is completely free without restrictions.
How often is the ASN database updated?
The tool syncs regularly with registry databases to provide up-to-date results.