ASN Directory
Browse popular autonomous systems and open dedicated AS detail pagesThis directory organizes frequently searched ASNs by network type so you can quickly jump to dedicated pages like AS15169 and AS16509.
Use this page when you want to browse known networks by provider category. If you already have an IP and want the announcing network, use the ASN lookup tool instead. If you need the basics first, start with what ASN means in networking.
Download the ASN directory (JSON or CSV)
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Attribution: Data: ip-trackers.com ASN directory (https://www.ip-trackers.com/asn)
Choose the right ASN page
Use the directory for browsing, the lookup tool for mapping a specific IP to its announcing ASN, and the guide article when you want a plain-English explanation of what ASNs do.
Start with the right path
Cloud & CDN
Cloud platforms, hosting providers, and content delivery networks.
Cloud & CDN list
- AS8075 - Microsoft Corporation (Global)
- AS13335 - Cloudflare (Global)
- AS14061 - DigitalOcean (Global)
- AS14618 - Amazon (AWS) (Global)
- AS15169 - Google (Global)
- AS16276 - OVH (Global)
- AS16509 - Amazon (AWS) (Global)
- AS20940 - Akamai (Global)
- AS24940 - Hetzner (Europe)
- AS32934 - Meta Platforms (Global)
- AS54113 - Fastly (Global)
- AS63949 - Linode (Akamai Connected Cloud) (Global)
Backbone
Transit and backbone operators often seen in long-distance routing paths.
Backbone list
- AS701 - Verizon Business (North America)
- AS1299 - Arelion (formerly Telia Carrier) (Global)
- AS174 - Cogent Communications (Global)
- AS2914 - NTT Communications (Global)
- AS3215 - Orange (Europe)
- AS3257 - GTT Communications (Global)
- AS3269 - Telecom Italia Sparkle / TIM (Europe)
- AS3356 - Lumen (Level 3) (Global)
- AS3491 - PCCW Global (Global)
- AS4713 - NTT Communications (Japan) (Japan)
- AS5511 - Orange (Europe)
- AS6453 - Tata Communications (Global)
- AS6762 - Telecom Italia Sparkle (Global)
- AS6939 - Hurricane Electric (Global)
- AS9009 - M247 (Global)
Residential ISP
Broadband providers with large consumer IP ranges and last-mile access.
Residential ISP list
- AS2856 - BT (British Telecommunications) (United Kingdom)
- AS3320 - Deutsche Telekom (Europe)
- AS4134 - China Telecom (China)
- AS4766 - KT Corp (South Korea)
- AS4837 - China Unicom (China)
- AS5089 - Virgin Media O2 (United Kingdom)
- AS5607 - Sky UK (United Kingdom)
- AS5650 - Frontier Communications (United States)
- AS6128 - Optimum / Altice USA (United States)
- AS7018 - AT&T Services (United States)
- AS7473 - Singtel (Singapore)
- AS7922 - Comcast Cable (United States)
- AS7992 - Comcast Business Communications (United States)
- AS11426 - Charter Communications (United States)
- AS12322 - Free SAS (France)
- AS12389 - Rostelecom (Russia)
- AS16591 - Google Fiber (United States)
- AS22773 - Cox Communications (United States)
- AS30036 - Mediacom Communications (United States)
Mobile ISP
Carrier networks serving cellular data and mobile broadband users.
Mobile ISP list
ASN & CGNAT guides
How to use these ASN pages
Start with an ASN page to identify the network operator and broader routing context, then cross-check with WHOIS/RDAP, reverse DNS, and blacklist tools. This directory is for discovery; the lookup tool is the better choice for IP-to-ASN mapping.