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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.5K |
| 65.5K |
| 3 |
| AS17040US | SEATTLE-TIMES - The Seattle Times | 1.5K | — | 6 |
| AS46518US | CLOUDPROVIDERUSA - Cloud Provider USA, LLC. | 1.5K | — | 5 |
| AS54914US | AVERYDENNISON-AS - Avery Dennison Corporation | 1.5K | — | 3 |
| AS22003US | PT-ASN - PALANTIR TECHNOLOGIES INC. | 1.5K | — | 6 |
| AS46667US | EPSEL-ASN - Evercore Partners Services East, LLC | 1.5K | — | 6 |
| AS20437US | AS20437 - Nationwide Mutual Insurance Company | 1.5K | — | 4 |
| AS47074US | AEG - AEG | 1.5K | — | 3 |
| AS19558US | KMCN-ASN - Kettering Medical Center | 1.5K | — | 6 |
| AS395962US | WSU-VAN-AS - Washington State University | 1.5K | — | 3 |
| AS394265US | BOX-CORP - Box.com | 1.5K | 1 | 7 |
| AS22009US | IDM - INTERNET DATA MANAGEMENT, INC. | 1.5K | — | 3 |
| AS46432US | AS-MITRA - Miami Transcoding Services Llc | 1.5K | — | 6 |
| AS394563US | ATSG-REDICLOUD - XTIUM, INC. | 1.5K | — | 6 |
| AS20187US | PASSPORTHEALTH - Passport Health Communications, Inc. | 1.5K | — | 6 |
| AS19529US | ROGERS - RFPT COMPANY LLC | 1.5K | 288 | 6 |
| AS62807US | NETARYX - NETARYX LLC | 1.5K | — | 3 |
| AS26234US | VERIF-MSO-PC - VeriFone Inc. | 1.5K | — | 5 |
| AS46634US | NET10-NET - Net10 Internet Services, LLC | 1.5K | — | 6 |
| AS32114US | NETWAVE - NETWAVE BROADBAND INC | 1.5K | 65.5K | 4 |
| AS19949US | FNFISP - FNFISP | 1.5K | — | 6 |
| AS6072US | UNISYS-AS-C - Unisys Corporation | 1.5K | — | 6 |
| AS7358US | DNB-GLOBAL - The Dun & Bradstreet Corporation | 1.5K | — | 6 |
| AS397832US | EPF-CO - Arconic Inc. | 1.5K | — | 3 |
| AS32358US | VENTURACOUNTY - County of Ventura | 1.5K | — | 6 |
| AS19687US | PPPS-ILG - Planet Payment Processing Services | 1.5K | — | 6 |
| AS398091US | ZX4 - zx4.com | 1.5K | — | 3 |
| AS54286US | AS-TAIPEI-ARIN - TAIPEI101 NETWORK LLC | 1.5K | 22 | 13 |
| AS46182US | VAROLII - Microsoft Corporation | 1.5K | — | 4 |
| AS18523US | CHEP-AS1 - CHEP International, Inc. | 1.5K | — | 6 |
| AS11803US | OMNICELL - Omnicell | 1.5K | — | 4 |
| AS54110US | CLEARLYIP1 - Modulis | 1.5K | — | 5 |
| AS33350US | APS---ARIZONA-PUBLIC-SERVICE-CORPORATION - Arizona Public Service Company | 1.5K | — | 6 |
| AS11336US | BLACKROCK-FINANCIAL-MANAGEMENT - BlackRock Financial Management, Inc. | 1.5K | — | 6 |
| AS36678US | CTUSA - CHINA TELECOM (AMERICAS) CORPORATION | 1.5K | — | 5 |
| AS18484US | VTLA - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS27237US | AHSNET-01 - Ardent Health Services, Inc. | 1.5K | — | 6 |
| AS63370US | GSOC-63370 - Georgia System Operations, Corporation | 1.5K | — | 6 |
| AS40513US | EDGE-TECHNOLOGY-GROUP - Edge Technology Group, LLC | 1.5K | — | 6 |
| AS205196US | BIGCORE-ASN BIG CORE LLC | 1.5K | — | 6 |
| AS399449US | KYNDRYL-POP-ASN - Kyndryl | 1.5K | — | 6 |
| AS19535US | AS19535 - JetBlue Airways Corporation | 1.5K | — | 3 |
| AS399788US | QUADSTATE-NET - Quad State Internet LLC | 1.5K | 65.6K | 7 |
| AS26931US | SCHONFELD-NET - Schonfeld Strategic Techworx, LLC. | 1.5K | — | 5 |
| AS33001US | CSM-NY-AS - Cravath, Swaine & Moore LLP | 1.5K | — | 6 |
| AS63238US | UPTEL - Upchurch Telecom & Data, Inc. | 1.5K | — | 3 |
| AS27284US | FOURPLEX-ASN - Fourplex Telecom LLC | 1.5K | 19 | 8 |