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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 | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| 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.
32,220 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS395880US | BCL-AS1 - Boomerang Communications LLC | 256 | 65.5K | 2 |
| AS14662US | CSTONE-NET - Cornerstone Systems Inc. | 256 | — | 1 |
| AS394489US | LAMINAR-NETWORKS-01 - Laminar Networks LLC | 256 | — | 1 |
| AS400712US | MAXIM-HOMECARE - Maxim Healthcare Services, Inc. | 256 | — | 1 |
| AS14180US | AS-KOGNITIVE - Kognitive Networks | 256 | — | 1 |
| AS19277US | IMAGEMASTER-01 - ImageMaster LLC | 256 | — | 1 |
| AS46245US | NIFCO-ASN-01 - NIFCO America | 256 | — | 1 |
| AS398241US | CELLNETIX - CELLNETIX LABS LLC | 256 | — | 1 |
| AS393334US | CCSD-ASN-201 - Camden City School District | 256 | — | 1 |
| AS395103US | LUCASFILM-SKYSOUND - Lucasfilm Ltd. LLC | 256 | — | 1 |
| AS401772US | CORELIGHTNET-LAB - Corelight, Inc. | 256 | 8 | 2 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS36191US | QUALITYINSIGHTS - Quality Insights Inc. | 256 | — | 1 |
| AS54421US | WARTBURG-COLLEGE - Wartburg College | 256 | — | 1 |
| AS27637US | MPC-USA-ASN - Mission Pharmacal Company | 256 | — | 1 |
| AS401257US | LP-SUBNET--69 - LIBOR | 256 | — | 1 |
| AS400861US | 0X7C0 - 0x7c0 Labs LLC | 256 | 2 | 3 |
| AS399393US | OM-LOZ-AS - Lozier Corporation | 256 | — | 1 |
| AS398345US | NETGRICHGLOBAL - NEW AGE NETWORKS, LLC | 256 | — | 1 |
| AS400209US | BRAZORIA-COUNTY-TX - Brazoria County | 256 | — | 1 |
| AS402492US | HOSTCRAM - HostCram | 256 | — | 1 |
| AS401977US | SNC-TUOL - Sierra Nevada Communications | 256 | — | 1 |
| AS16627US | BCCA-AS - Board of Commissioners of the County of Allen | 256 | — | 1 |
| AS910US | NORTA-CANAL - RTA | 256 | — | 1 |
| AS393367US | SJMC-TCHD-3 - Teton County Hospital District | 256 | — | 1 |
| AS402156US | CLOUDLOGICS-1 - CloudLogics LLC | 256 | — | 1 |
| AS30242US | SAMSA - SAMSA | 256 | — | 1 |
| AS402260US | DR-ASN01 - University of Colorado Medicine | 256 | — | 1 |
| AS63180US | MTESC - STS Tire & Auto Centers | 256 | — | 1 |
| AS213801US | NATHANMOORE Nathan Moore | 256 | 17 | 3 |
| AS20274US | FVCC-AS - Flathead Valley Community College | 256 | — | 1 |
| AS395603US | NASSAU-COLISEUM - AEG | 256 | — | 1 |
| AS925US | SIFIBE - SiFibe, LLC | 256 | — | 1 |
| AS394796US | MIDLOTHIAN-01 - City of Midlothian | 256 | — | 1 |
| AS32859US | JEGS-HIGH-PERFORMANCE-ASN - JEGS | 256 | — | 1 |
| AS916US | STALWART-ASN-01 - Stalwart Wireless | 256 | 256 | 2 |
| AS400265US | DWS-AUL-INT - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS399131US | CITY-OF-DAYTON-TN-PUBLIC - City of Dayton | 256 | — | 1 |
| AS12048US | HALLCON-ASN-01 - Hallcon Corporation | 256 | — | 1 |
| AS7013US | AS-HSLC-01 - Health Sciences Libraries Consortium | 256 | — | 1 |
| AS35944US | MEYER-SOUND - Meyer Sound | 256 | — | 1 |
| AS396508US | MICHELS-CORPORATION - Michels Corporation | 256 | — | 1 |
| AS394817US | THE-SALVATION-ARMY-USE - The Salvation Army | 256 | — | 1 |
| AS401760US | NETKIND - Netkind LLC | 256 | 1 | 2 |
| AS55210US | SAMC-HCHA - Southeast Alabama Medical Center | 256 | — | 1 |
| AS401828US | ARLINGTON-TV-COOPERATIVE - Arlington T-V Cooperative, Inc | 256 | — | 1 |