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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1K |
| — |
| 4 |
| AS46721US | SKYNET-COUNTRY - Skynet Country INC | 1K | — | 2 |
| AS33174US | PRINCE-WILLIAM-COUNTY-VA-ASN - Prince William County Government Department of IT (DoIT) | 1K | 4.1K | 6 |
| AS401375US | NYECOM-NET - Nyecom Teleservices | 1K | — | 1 |
| AS19002US | FDBS-AS - Financial Database Services | 1K | — | 1 |
| AS16486US | WEYERHAEUSER - Weyerhaeuser Company | 1K | — | 1 |
| AS54313US | TELCENTREX - Telcentrex LLC | 1K | — | 4 |
| AS18478US | NATAL-MED - Mednax Services, Inc. | 1K | — | 4 |
| AS40540US | MERITUSHEALTH - Meritus Medical Center, Inc. | 1K | — | 3 |
| AS21530US | FISERV-EPF-OMAHA - Fiserv Solutions, LLC | 1K | 1 | 4 |
| AS402146US | EXE-DEV - Bold Software Inc | 1K | 1 | 2 |
| AS54021US | FIXFLYER1 - FIX FLYER, LLC | 1K | — | 4 |
| AS400765US | OMATICON-01 - Omaticon Corporation | 1K | 4.1K | 3 |
| AS32418US | AS-IMAGINATIONET - Imagination Network LLC | 1K | — | 3 |
| AS23370US | NET-TY - TY INC | 1K | — | 1 |
| AS40662US | LAYER7-MITIGATION - Layer7 Technologies Inc | 1K | 524.3K | 5 |
| AS22048US | WHOLE-FOODS - Whole Foods Market, Inc. | 1K | — | 4 |
| AS54983US | FSRLAS-01 - FirstService Residential, Inc. | 1K | — | 3 |
| AS62500US | ENL - Edge Networks LLC | 1K | — | 1 |
| AS7221US | TWRS-PHL - Natural Wireless, LLC | 1K | — | 1 |
| AS33186US | DAVITTACLINK - DaVita HealthCare Partners Inc. | 1K | 1 | 5 |
| AS63149US | AS-SILO - ScienceLogic, Inc | 1K | — | 4 |
| AS23039US | BELLAMB - Bell Ambulance, Inc. | 1K | — | 4 |
| AS32224US | EMPIRE - Empire Southwest | 1K | — | 4 |
| AS36056US | ALASK-15 - Alaska Native Medical Center | 1K | — | 1 |
| AS402265US | MUTANET - Mutanet LLC | 1K | — | 4 |
| AS396239US | CMW-WIRELESS-1 - CMW Wireless LLC | 1K | — | 1 |
| AS399651US | TBBK-USCOLO01 - The Bancorp Incorporated | 1K | — | 4 |
| AS40013US | CARDINAL-LOGISTICS-MANAGEMENT-CORPORATION - Cardinal Logistics Management Corporation | 1K | — | 1 |
| AS6435US | TRI-NET-SOLUTIONS - Tri-Net Solutions LLC. | 1K | — | 1 |
| AS6596US | ASN-BUNGI - Bungi Communications | 1K | 65.5K | 5 |
| AS62816US | OWS - OCTOPUS WEB SOLUTION INC | 1K | — | 4 |
| AS19068US | ASN-TOMMYBAHAMA - Tommy Bahama Group, Inc. | 1K | — | 3 |
| AS55024US | WSCC-AS1 - Walters State Community College | 1K | — | 3 |
| AS398255US | GTS-AS-02 - GTS Securities, LLC | 1K | — | 3 |
| AS46563US | STONEH-AS - Stonehill College | 1K | — | 1 |
| AS399660US | JANPA-ISP - WWLTH, Inc | 1K | — | 1 |
| AS17144US | NUANCE-NOD - Microsoft Corporation | 1K | 3 | 7 |
| AS27386US | PSEGLI - PSEG Long Island LLC | 1K | — | 4 |
| AS2002US | KYN-GTS - Kyndryl | 1K | — | 2 |
| AS40757US | MMG - MMG Insurance Company | 1K | — | 1 |
| AS400104US | TERAEX - Tcloudnet | 1K | — | 2 |
| AS27014US | ORLANDO-HEALTH - Orlando Health, INC | 1K | — | 1 |
| AS25799US | M247AI-AS-US - 24/7.ai, Inc | 1K | — | 4 |
| AS11901US | COSWAN - County of Sacramento | 1K | — | 2 |
| AS14197US | HMS-ASN - HEALTH MARKET SCIENCE | 1K | — | 4 |
| AS36428US | CYBERTIME-NETWORK-COMMUNICATIONS - Cybertime Network Communications | 1K | — | 4 |