Look up Autonomous System Numbers (ASN) to find the organization and network range for any ASN. Powered by ipinfo.io.
Type an AS number (e.g. AS15169), an IP address, or a domain name. The tool resolves it to the owning organization.
Click Lookup. The tool queries PeeringDB and public BGP data to return the organization's details.
See the organization name, country, city, address, and website. Useful for identifying who owns an IP range.
Large ASNs like AS15169 (Google) operate global infrastructure. Smaller ASNs may be regional ISPs or enterprise networks.
The ASN Lookup is part of LaiUse's growing collection of network tools, ip lookup, dns, whois, ssl checker. Like every tool on LaiUse, it runs entirely in your browser — meaning your data, files, and inputs stay on your device throughout the entire process.
LaiUse offers Network tools alongside speed test, dns lookup, ipv4 calculator. The entire platform is free to use with no signup required, making it a popular choice for developers, designers, and everyday users who need a quick tool without the overhead of a SaaS subscription.
Whether you need the asn lookup for a one-off task or as part of your regular workflow, LaiUse is designed to be fast, reliable, and private. Bookmark this page to come back anytime, or explore the rest of the Network category for related tools.
No. LaiUse does not log, store, or share your IP address or query results. Network tools are designed for diagnostics without privacy trade-offs.
City-level accuracy varies by ISP and region. Country-level accuracy is typically 95%+. Geolocation is based on public IP allocation databases.
Yes. WHOIS, DNS, SSL, and HTTP header checks are commonly used in security audits. Always ensure you have authorization before scanning networks you do not own.