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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. | 218M | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 1 |
| AS53839US | AS-EPSILON - Epsilon, Inc. | 512 | — | 2 |
| AS393681US | ALL-BLUE-SOLUTIONS-INC - All Blue Solutions Inc. | 512 | 1 | 3 |
| AS22083US | MEMORIAL-HEALTH-CARE - Memorial Health Care System | 512 | — | 2 |
| AS35978US | KINETIC-1-2009 - GPB Communications Inc | 512 | — | 2 |
| AS54431US | LUNAVI-DEN - Lunavi, Inc. | 512 | — | 1 |
| AS196629US | DOMINION-AS Antipov Oleg | 512 | — | 2 |
| AS401538US | NOVA86 - Nova86 | 512 | 8.2K | 8 |
| AS46952US | CALYON-1301 - Calyon America Services, Inc. | 512 | — | 2 |
| AS53752US | USDIGITAL - US Digital | 512 | — | 2 |
| AS25763US | BHSG-ASN001 - Beacon Hill Staffing Group, LLC | 512 | — | 2 |
| AS40908US | IES - Integrated Electrical Services, Inc (IES) | 512 | — | 2 |
| AS393642US | PRYORCASHMAN-NY - PRYOR CASHMAN LLP | 512 | — | 2 |
| AS40173US | CHG-AS-01 - Circa Resort & Casino | 512 | — | 1 |
| AS396325US | FUSION-NETWORKS - Fusion Networks Enterprises LLC, The | 512 | — | 2 |
| AS394217US | IDAHO-DEPARTMENT-OF-HEALTHAND-WELFARE - State of Idaho | 512 | — | 1 |
| AS19704US | HCVT-01 - Howard Center, Inc. | 512 | 257 | 4 |
| AS401967US | EDGE-1 - Edge Internet Services, Inc. | 512 | — | 1 |
| AS398891US | QUAD9-AS-2 - Quad9 | 512 | 2 | 4 |
| AS11710US | ABBATECH - ABBA TECHNOLOGIES | 512 | — | 2 |
| AS399996US | QFLIX-INTERNET - QFLIX L.L.C. | 512 | — | 2 |
| AS394687US | PFSCNET - PORTFOLIO FINANCIAL SERVICING COMPANY | 512 | — | 2 |
| AS400928US | CAPE-01 - Private Tech Inc. | 512 | — | 2 |
| AS400234US | AFMC-1 - Arkansas Foundation for Medical Care, Inc. | 512 | — | 2 |
| AS402107US | BITFISSURE-01 - Bitfissure LLC | 512 | 256 | 3 |
| AS395241US | MONITORING-AMERICA-ALARM-CO-OP - Monitoring America Alarm Co-Op | 512 | — | 2 |
| AS400990US | SU-ASN-01 - Shepherd University | 512 | — | 2 |
| AS396947US | SMWC-ASN-1 - Saint Mary of the Woods College | 512 | — | 2 |
| AS18629US | LTF-001 - Life Time, Inc | 512 | — | 2 |
| AS399046US | DRPA-ASN-01 - The Delaware River Port Authority | 512 | — | 2 |
| AS401985US | AS-FDML-1 - Family Dollar | 512 | — | 2 |
| AS396423US | COASTALFIBERNET - Coastal FiberNet, LLC | 512 | — | 2 |
| AS394247US | VOIPIA-INC - Voipia Networks Inc | 512 | — | 2 |
| AS393535US | FORTBENDCOUNTY - Fort Bend County | 512 | — | 2 |
| AS399028US | MEADO-ASN-01 - Meadowbrook, Inc. | 512 | — | 2 |
| AS54208US | IRELL - IRELL AND MANELLA LLP | 512 | — | 2 |
| AS21982US | PRDCA-ASN - Panasonic R & D Company of America | 512 | — | 2 |
| AS20246US | HOLIDAYINNSDBAYSIDE-GUEST-INTERNET - Holiday Inn San Diego Bayside | 512 | — | 1 |
| AS18784US | MCD-US-ASN - McDonald's Corporation | 512 | — | 2 |
| AS1087US | ISD271 - Bloomington Public School District | 512 | — | 1 |
| AS395036US | CITYOFSANIBEL - City of Sanibel | 512 | — | 2 |
| AS11811US | OPCO - Oppenheimer & Co. Inc. | 512 | — | 2 |
| AS211831US | Canfield Canfield Scientific, Inc. | 512 | — | 2 |
| AS46369US | TGNA-KUSA-KTVD - TEGNA Inc. | 512 | — | 2 |
| AS14622US | AS-14622-CHI - GoFIBER | 512 | — | 1 |
| AS400996US | UNIVERSAL-BROADBAND - AeroSurf | 512 | 65.5K | 3 |
| AS399210US | TSAUSWPDCPHX - The Salvation Army | 512 | — | 2 |