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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,299 |
| — |
| — |
| 0 |
| AS393814US | NTS-SANANGELO-01 - Vexus Fiber | — | — | 0 |
| AS393910US | KS-ASUS-1 - Arnold & Porter Kaye Scholer LLP | — | — | 0 |
| AS393957US | NAC-AS-US - North American Color, Inc. | — | — | 0 |
| AS394114US | JBG-SMITH-PROPERTIES-LP - The JBG Companies | — | — | 0 |
| AS394128US | CHP-CONSULTING - Alfa Financial Software Inc | — | — | 0 |
| AS394182US | REPERIO-01 - Reperio, LLC | — | — | 0 |
| AS394202US | CSMIII-GREENBRIER-AR - CableSouth Media III LLC | — | — | 0 |
| AS394278US | VSE-COLO - Starwood Vacation Ownership | — | — | 0 |
| AS394351US | DIGITAL PORPOISE - Digital Porpoise, LLC | — | — | 0 |
| AS394363US | TESLAENERGY - Tesla Motors, Inc. | — | — | 0 |
| AS394379US | WECBGPASN - Wall, Einhorn & Chernitzer, P.C. | — | — | 0 |
| AS394403US | VGPE-ASN2 - VELOCITY, A MANAGED SERVICES COMPANY | — | — | 0 |
| AS394429US | MWESTIX - MWESTIX LLC | — | — | 0 |
| AS394508US | UKPC-P1 - The Northern Trust Company | — | — | 0 |
| AS394519US | GRUVE-AI - Gruve | — | — | 0 |
| AS394535US | TI-ASN - Truth Initiative | — | — | 0 |
| AS394642US | MGM-IX - City of Montgomery | — | — | 0 |
| AS394800US | MIDMARK - Midmark Corporation | — | — | 0 |
| AS394811US | HFASERVICES - HFA Specialty Assets LLC | — | — | 0 |
| AS394872US | MANHA-20-1 - Manhattan West, LLC | — | — | 0 |
| AS394905US | ONEAVENUE-01 - One Avenue LLC | — | — | 0 |
| AS394947US | ARBEIT - Arbeit Software | — | — | 0 |
| AS394949US | FUSED - Fused Network Corporation | — | — | 0 |
| AS394955US | BJWC-WBO - BJS WHOLESALE CLUB | — | — | 0 |
| AS394967US | USG-11 - UKG Inc. | — | — | 0 |
| AS395021US | MASTRACCHIO - MASTRACCHIO SYSTEMS LLC | — | — | 0 |
| AS395031US | SBA-36-AS - State Bar of Arizona | — | — | 0 |
| AS395065US | HBUHSD - Huntington Beach Union High School District | — | — | 0 |
| AS395081US | MEGAPORTUSAINC-TORIX-CA - Megaport (USA) Inc. | — | — | 0 |
| AS395142US | KOMAC - Komac Technologies, LLC | — | — | 0 |
| AS395161US | CONEXUM-INC - IPXON Networks | — | — | 0 |
| AS395211US | TROY-AREA-SCHOOL-DISTRICT - Troy Area School District | — | — | 0 |
| AS395242US | DV-TRADING - DV TRADING, LLC | — | — | 0 |
| AS395283US | RTR-SI-ASSIGNED - RTR Financial Services, Inc. | — | — | 0 |
| AS395310US | STHELENA-USD - ST HELENA UNIFIED SCHOOL DISTRICT | — | — | 0 |
| AS395573US | IBTCONNECT - IBT Connect LLC | — | — | 0 |
| AS395587US | CS-ASN16 - Clearwater Services, Inc. | — | — | 0 |
| AS395670US | LGHL-1 - Lone Gull Holdings, Ltd. | — | — | 0 |
| AS395711US | AARCORPRATION - AAR Corp. | — | — | 0 |
| AS395713US | ALLIED-SOLUTIONS-LLC-US - ALLIED SOLUTIONS LLC | — | — | 0 |
| AS395752US | CORERO-NETWORK-SECURITY - Corero Network Security, Inc. | — | — | 0 |
| AS395801US | ASSL - Ascent Shared Services, LLC | — | — | 0 |
| AS395816US | MASSMUTUAL-CLOUD - Massachusetts Mutual Life Insurance Company | — | — | 0 |
| AS395870US | SBCS-9-SGU - SBCS, Inc. | — | — | 0 |
| AS395986US | ALLSTATE-COMPUTERS - Allstate Computers, LLC | — | — | 0 |
| AS396266US | CINCINNATI-ASSET-MANAGEMENT - Cincinnati Asset Management Inc. | — | — | 0 |