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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS399190US | FSTRF14226 - Frontier Science and Technology Research Foundation, Inc. | 256 | — | 1 |
| AS394816US | GROCERYOUTLET - Grocery Outlet Inc. | 256 | — | 1 |
| AS16835US | CENTURYLINK-LEGACY-MR-MEBLANE-AND-RCMT - CenturyLink Communications, LLC | 256 | — | 1 |
| AS26660US | CLAYCO - Clayco, Inc. | 256 | — | 1 |
| AS11511US | CRETE-INTERNET - Crete Carrier Corporation | 256 | 1 | 2 |
| AS14289US | CBTKS-AS - COREFIRST BANK & TRUST | 256 | — | 1 |
| AS394465US | SUSSEXDE-GOV - Sussex County Government | 256 | — | 1 |
| AS1323US | ANSBB-ASNNET-1 - Verizon Business | 256 | — | 1 |
| AS397612US | ANX - ARCHITECTURAL NEXUS, INC | 256 | — | 1 |
| AS394471US | ZP-GU - Gusto, Inc. | 256 | — | 1 |
| AS15132US | LA-INET - City National Bank | 256 | — | 1 |
| AS13813US | BROADSOFT-INC-NORTH-AMERICA - BroadSoft, Inc. | 256 | — | 1 |
| AS36151US | ACUOA-NET - The Alta Condominium Unit Owner's Association | 256 | — | 1 |
| AS17272US | ROTH-NET - ROTH CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS401417US | ACL-204 - ATLANTIC CONTAINER LINE (USA) LLC | 256 | — | 1 |
| AS393482US | SMCISD-ASN - San Marcos Consolidated Independent School District | 256 | — | 1 |
| AS399663US | KUEHN-NETWORKS - Kuehn Networks | 256 | 6 | 7 |
| AS26261US | E2CNET - E Squared C Inc. | 256 | — | 1 |
| AS54405US | MGALE-1 - Martingale Asset Management Limited Partnership | 256 | — | 1 |
| AS26264US | TVI-AS - TVI Inc | 256 | — | 1 |
| AS11913US | ELEVATE-HOMESCRIPTIONS-01 - Elevate Homescriptions | 256 | 16 | 2 |
| AS400860US | AS-NEXUSHOSTING - Nexuscore Hosting | 256 | — | 1 |
| AS19309US | WILLIAMSON-MEDICAL-CENTER-AS - Williamson Medical Center | 256 | — | 1 |
| AS399830US | APOG-SOUTHGATE - Apogee Telecom Inc. | 256 | 1 | 2 |
| AS19014US | NORCOM - NORCOM | 256 | 1 | 2 |
| AS14518US | BIMR-LJ - Sanford Burnham Prebys Medical Discovery Institute | 256 | — | 1 |
| AS399699US | KCLI-01 - Kansas City Life Insurance Company | 256 | — | 1 |
| AS14599US | SPRINT-CHARTER-CONNECTION - Besser Company | 256 | — | 1 |
| AS46983US | CL-ASN-01 - crunchdev LLC | 256 | — | 1 |
| AS400181US | SIGYN-SYSTEMS-0 - Sigyn Systems | 256 | 4.1K | 2 |
| AS401265US | LWR-338 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS30700US | OWO-NETWORK - OwO Network, LLC | 256 | 2 | 3 |
| AS401530US | RETAILSOLUTIONS-ASN-01 - Retail Solutions, LLC | 256 | — | 1 |
| AS393530US | TLU - TEXAS LUTHERAN UNIVERSITY | 256 | — | 1 |
| AS397844US | FORESCOUT - Forescout Technologies Inc. | 256 | — | 1 |
| AS62718US | SSDCOUGARSNET-SPRINGFIELD-SCHOOL-DISTRICT-DELCO - Springfield School District | 256 | — | 1 |
| AS400461US | CITYOFMIDLANDTX - City of Midland | 256 | — | 1 |
| AS397091US | LASERFICHE-ASN-01 - Laserfiche | 256 | — | 1 |
| AS396159US | PUD3-WA - PUD3 | 256 | — | 1 |
| AS401378US | HTMONI - HTMONI TECHNOLOGY LLC | 256 | — | 1 |
| AS23453US | NPBI-NOC - NEW PEOPLES BANK, INC | 256 | — | 1 |
| AS19520US | WISHVPS - wishVPS Inc. | 256 | — | 1 |
| AS401521US | KSWOTV - Gray Media, Inc. | 256 | — | 1 |
| AS1609US | GISX - Global Imaging Systems Inc | 256 | — | 1 |
| AS397097US | IMA-MODERN-AS - Infrastructure Management Associates, Inc. | 256 | 4.1K | 2 |
| AS126US | DNIC-AS-00126 - United States Department of Defense (DoD) | 256 | — | 1 |