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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS53854US | AS53854 - Griffin Health Services Corp. | 256 | — | 1 |
| AS13619US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS1073US | SCLSA-ASN-01 - South Carolina Legislative Services Agency | 256 | — | 1 |
| AS4577US | WISPOTO-01 - Wispoto, LLC | 256 | — | 1 |
| AS393292US | SKIZNET-AS-01 - SkizNet | 256 | 4.1K | 2 |
| AS202397US | nexeon Nexeon Technologies, Inc. | 256 | — | 1 |
| AS26740US | LIFEWAVE-ORG-1 - LifeWave, Inc. | 256 | — | 1 |
| AS21643US | MWU-ASN - Midwestern University | 256 | — | 1 |
| AS26639US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS32403US | THE-HERITAGE-FOUNDATION - The Heritage Foundation | 256 | — | 1 |
| AS397287US | AUTOCRIB-53 - AutoCrib, Inc. | 256 | — | 1 |
| AS17046US | ACTION-COMM - Action Communications, Inc. | 256 | — | 1 |
| AS27002US | MIAX-MIAMI-INTERNATIONAL-HOLDINGS - Miami International Holdings, Inc | 256 | — | 1 |
| AS393622US | PAFFORD-MEDICAL-SERVICES - PAFFORD MEDICAL SERVICES | 256 | — | 1 |
| AS47042US | DIVERSEPOWER - Diverse Power Incorporated | 256 | — | 1 |
| AS400723US | SPS-US-MSP-DC1 - SPS Commerce, Inc. | 256 | — | 1 |
| AS36157US | ACER AMERICA CORPORATION - Acer America Corporation | 256 | — | 1 |
| AS11330US | BANKPLUS-NETWORK-01 - BankPlus | 256 | — | 1 |
| AS40233US | SLOM-INC - SLOMIN'S INC. | 256 | — | 1 |
| AS63316US | CITY-OF-FOSTER-CITY - City of Foster City | 256 | — | 1 |
| AS62581US | WPA - Wonderful Pistachios & Almonds LLC | 256 | — | 1 |
| AS393866US | SEGAS-01 - Southeast Gas | 256 | — | 1 |
| AS400845US | ASN-ECX - ECXSYSTEMS, LLC | 256 | — | 1 |
| AS7060US | EA - Electronic Arts, Inc. | 256 | — | 1 |
| AS10419US | GBUS-ASN - Globius Systems, LLC | 256 | 16 | 2 |
| AS394018US | ARIN-PFS-SEA - ARIN Operations | 256 | 1 | 2 |
| AS53318US | DPS-CL1 - Deep Systems LLC | 256 | — | 1 |
| AS32031US | BVUSD229 - BLUE VALLEY USD NO 229 | 256 | 1 | 2 |
| AS393563US | ACTIFIO-AS - Actifio, Inc. | 256 | — | 1 |
| AS396093US | BRS-AS-124 - Big River Steel, LLC | 256 | — | 1 |
| AS54426US | TOSA - Texas Organ Sharing Alliance | 256 | — | 1 |
| AS2725US | BES-NET - Berkeley Educational Services of New Jersey, Inc. | 256 | — | 1 |
| AS396242US | ECOM - Tiffany and Company | 256 | — | 1 |
| AS46325US | SMH-AS-01 - Stinson Morrison Hecker LLP | 256 | — | 1 |
| AS393902US | MMH-158 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS40099US | BB1-AS01 - Broadband One of the Midwest, Inc. | 256 | — | 1 |
| AS398544US | SIMPLICITYTECH-NET01 - Simplicity Tech | 256 | — | 1 |
| AS31778US | CASCADE-MEDICAL-IMAGING - Cascade Medical Imaging | 256 | — | 1 |
| AS400756US | LODGEWORKS - LodgeWorks | 256 | — | 1 |
| AS19520US | WISHVPS - wishVPS Inc. | 256 | — | 1 |
| AS54977US | MERITMEDICAL - Merit Medical Systems, Inc | 256 | — | 1 |
| AS53789US | LEBANON-OR - City of Lebanon | 256 | — | 1 |
| AS395659US | SEAWORLD-PARKS-AND-ENTERTAINMENT - SeaWorld Parks & Entertainment, Inc. | 256 | — | 1 |
| AS398240US | IDENTIDAD - Identidad Telecom | 256 | — | 1 |
| AS33278US | NSLC-ORG - National Student Clearinghouse | 256 | — | 1 |
| AS397612US | ANX - ARCHITECTURAL NEXUS, INC | 256 | — | 1 |