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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 0 |
| AS400789US | STREAMLINE - Streamline | — | — | 0 |
| AS400826US | HCDL-ALBUQUERQUE-DATA-CENTER - H5 Data Centers | — | — | 0 |
| AS400916US | SILVER-HOSTING-NETWORK - Silver Hosting Network, LLC | — | — | 0 |
| AS401059US | METHOD-FINANCIAL - Method Financial | — | — | 0 |
| AS401091US | PIXEL - PixelCrafters Limited | — | — | 0 |
| AS401143US | BYTEBROADBAND - BYTE BROADBAND, LLC | — | — | 0 |
| AS401169US | RIDGEWAVE-COMMUNICATION - The Computer Ranch, L.L.C. | — | — | 0 |
| AS401302US | ZOOT-BZN - Zoot Enterprises, Inc. | — | — | 0 |
| AS401308US | NOMAD-AIR - Nomad Air, LLC | — | — | 0 |
| AS401499US | SEAC-TMF-01 - SEAC Network Solutions LLC | — | — | 0 |
| AS401529US | SANDCLOCK - SANDCLOCK LLC | — | — | 0 |
| AS401591US | BLUE - IPCrash LLC | — | — | 0 |
| AS401592US | DR - Neal, Gerber & Eisenberg LLP | — | — | 0 |
| AS401607US | NRCC-ASN-01 - Northeast Regional Computational Cooperative | — | — | 0 |
| AS401719US | KCBROADBAND-01 - KC Broadband LLC | — | — | 0 |
| AS401743US | FOX-INTEGRATED-SOLUTIONS - Fox Integrated Solutions | — | — | 0 |
| AS401774US | QC-BROADBAND - Quick Current-Nebraska, LLC | — | — | 0 |
| AS401937US | UNI-BROADBAND-2 - Uni Broadband LLC | — | — | 0 |
| AS402044US | CLCOM - CloudLink Communications LLC | — | — | 0 |
| AS402088US | PLIMMOBILE - Plim Mobile Telecom LLC | — | — | 0 |
| AS402096US | NTRS-LD5-P1 - The Northern Trust Company | — | — | 0 |
| AS402100US | BGTCO - Burke's Garden Telephone Company | — | — | 0 |
| AS402188US | 46454 - WCS | — | — | 0 |
| AS402191US | 46454 - WCS | — | — | 0 |
| AS402272US | CORSTL - Collector of Revenue | — | — | 0 |
| AS402301US | CCJC-01 - City Colleges of Chicago | — | — | 0 |
| AS402371US | ADS-HSVPUBLIC - ADS | — | — | 0 |
| AS402389US | AMHERST - Amherst | — | — | 0 |
| AS402409US | QFANALYTICS - QF | — | — | 0 |
| AS402442US | AS-EMUHSD-01 - El | — | — | 0 |
| AS402490US | PHOENIX-1871 - Phoenix | — | — | 0 |
| AS402519US | OCTET-NETWORKS - OCTET | — | — | 0 |
| AS402550US | IURO-NETWORK - IURO | — | — | 0 |
| AS402553US | CAV-PROD-AS-01 - Cavnue | — | — | 0 |
| AS23US | AS23 - National Aeronautics and Space Administration | — | — | 0 |
| AS40US | MIT-TEST - Massachusetts Institute of Technology | — | — | 0 |
| AS51US | DNIC-AS-00051 - Headquarters, USAISC | — | — | 0 |
| AS120US | MITRE-OMAHA - The MITRE Corporation | — | — | 0 |
| AS136US | AF-ASN-136 - Air Force Systems Networking | — | — | 0 |
| AS171US | SOX-RES - Southern Light Rail, Inc. | — | — | 0 |
| AS193US | FORD-ASN - Lockheed Martin Corporation | — | — | 0 |
| AS232US | MERIT-AS-9 - Merit Network Inc. | — | — | 0 |
| AS234US | NETHER-RESEARCH - Nether.Net | — | — | 0 |
| AS265US | DSI-WR-16 - Advanced Info. Technology Servcies | — | — | 0 |
| AS284US | UUNET-IPV6 - Verizon Business | — | — | 0 |
| AS290US | SHOWNET-AS - Interop Show Network | — | — | 0 |