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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 |
| AS62510US | NESATX - North East Independent School District | 256 | — | 1 |
| AS393992US | TOWNOFBROOKHAVEN - Town of Brookhaven | 256 | — | 1 |
| AS399387US | DIGITECH-COMPUTER-LLC - Digitech Computer LLC | 256 | — | 1 |
| AS21611US | NET-WSGWIN - Wilson Sporting Goods Co. | 256 | — | 1 |
| AS397291US | LOGICMONITOR-CORPORATE - LogicMonitor, Inc. | 256 | — | 1 |
| AS402287US | PGAL-BGP - PGAL | 256 | — | 1 |
| AS26336US | TFHD-INTERNET1 - Tahoe Forest Hospital District | 256 | — | 1 |
| AS396898US | BMG-ASN - Capital City Home Loans | 256 | — | 1 |
| AS40055US | THE-DOUGLAS-STEWART-COMPANY - THE DOUGLAS STEWART COMPANY | 256 | — | 1 |
| AS53331US | IMPERIAL-CAPITAL-GROUP-LLC - Imperial Capital Group LLC | 256 | — | 1 |
| AS397675US | ASD-WHP-BLOCK - Armstrong School District | 256 | — | 1 |
| AS32124US | CONTINENTALMILLS-EXT - CONTINENTAL MILLS | 256 | — | 1 |
| AS21751US | OWL-CREEK-ASSET-MANAGEMENT - Owl Creek Asset Management, L.P. | 256 | — | 1 |
| AS401751US | FMH-NET - Farmers Mutual Hail Insurance Company of Iowa | 256 | — | 1 |
| AS11304US | BMH-ASN - Prisma Health | 256 | — | 1 |
| AS62677US | WFASN - William Floyd Union Free School District | 256 | — | 1 |
| AS197137US | YUNHU-NETWORKS-LLC YUNHU NETWORKS LLC | 256 | 4 | 5 |
| AS398881US | SFG-199-33-226 - SFG, LLC | 256 | — | 1 |
| AS15314US | JENZABAR-ASN1 - jenzabar inc | 256 | — | 1 |
| AS401623US | OMNISSA-ATL - Omnissa, LLC | 256 | 1 | 2 |
| AS1523US | DNIC-ASBLK-01522-01526 - Headquarters, USAISC | 256 | — | 1 |
| AS22564US | TRABON-SOLUTIONS - Trabon Solutions | 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 |