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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 512 |
| — |
| 2 |
| AS398965US | ENERBANKUSA - EnerBank USA | 512 | — | 2 |
| AS62966US | AS-BRIGHTEDGE-COM - BrightEdge Technologies | 512 | — | 1 |
| AS399400US | INSPIRO-RELIA-US - Inspiro Relia US, Inc. | 512 | — | 2 |
| AS395943US | MHAGBGP - Memorial Hospital at Gulfport | 512 | — | 2 |
| AS32958US | HERITAGE-MEDICAL - Heritage Medical Associates, P.C. | 512 | — | 2 |
| AS55249US | SAGE-ELSEG1 - Sage Publications, Inc. | 512 | — | 1 |
| AS402517US | DATAWORLDNET - Data | 512 | — | 2 |
| AS402410US | COMPATIBLE-NETWORK - Compatible | 512 | 49 | 6 |
| AS20388US | ETI-FLL1 - Ewart Technologies, Inc. | 512 | — | 2 |
| AS11364US | VAREX-USA - Varex Imaging Corporation | 512 | — | 2 |
| AS16827US | LAWTONIS - Lawton Information Services, LLC | 512 | 2 | 4 |
| AS63243US | SYNERGENT - Synergent | 512 | — | 2 |
| AS394877US | BCH - Blythedale Children's Hospital | 512 | — | 2 |
| AS54740US | DYNAWEB - Dynaweb Foundation | 512 | — | 2 |
| AS398000US | TGNA-WTIC - TEGNA Inc. | 512 | — | 2 |
| AS18584US | ANKURA-ASN - Ankura Consulting Group LLC | 512 | — | 2 |
| AS22392US | NGS-MOE - National Geographic Society | 512 | — | 2 |
| AS40747US | HSINYIPTELTD-AS-AP - Hsin Yi Pte Ltd | 512 | — | 2 |
| AS36766US | KETV-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS20364US | FIREFLY - Firefly Network LLC | 512 | — | 2 |
| AS53546US | LEGION - Legion, Inc. | 512 | — | 1 |
| AS399965US | UTAH-JAZZ - Jazz Basketball Investors LLC | 512 | — | 2 |
| AS396875US | CCINC - Consumer Cellular Inc. | 512 | — | 2 |
| AS394803US | ANSI-ASN - American National Standards Institute | 512 | — | 2 |
| AS17342US | HCCFL-AS - Hillsborough Community College | 512 | — | 2 |
| AS396318US | CENTENNIALBANK-AR - Centennial Bank | 512 | — | 2 |
| AS32562US | SLACKER-1 - Slacker Inc. | 512 | — | 2 |
| AS395955US | INTERLINE-BRANDS-INC - Interline Brands, Inc. | 512 | — | 2 |
| AS46460US | KARMAK-NET - Karmak, Inc. | 512 | — | 1 |
| AS218419US | WAVELENGTH-BROADBAND Wavelength Studios LLC | 512 | — | 2 |
| AS400701US | NCCB-COOP - National Broadband Coop | 512 | 4.1K | 2 |
| AS63481US | BCRH - BAXTER COUNTY REGIONAL HOSPITAL, INC | 512 | — | 2 |
| AS22151US | BREAN-CAPITAL - Brean Murray & Co., Inc. | 512 | — | 2 |
| AS32309US | 32309 - ASHS | 512 | — | 2 |
| AS396321US | FANATICS - Fanatics, INC | 512 | — | 2 |
| AS16961US | HIPCS-DALLAS-SERVER-OFFICE - AT&T Enterprises, LLC | 512 | — | 2 |
| AS13671US | VRIS-AS-BLOCK - Verizon Business | 512 | — | 2 |
| AS47657US | DEVEXPERTS-AS Devexperts Inc | 512 | — | 2 |
| AS395523US | IGSENERGY - IGS Energy | 512 | — | 2 |
| AS18518US | ARES-MGMT - Ares Management LLC | 512 | — | 2 |
| AS33161US | CHUMASH-ENTERPRISES - Chumash Casino Resort | 512 | — | 2 |
| AS22451US | HRH - Halifax Regional Hospital | 512 | — | 2 |
| AS5284US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS399221US | CONFIE - CONFIE ADMINISTRATIVE SERVICES, INC. | 512 | — | 2 |
| AS53784US | SNHHS - Southern New Hampshire Health System | 512 | — | 2 |
| AS26450US | CTDI-WC - CTDI | 512 | 274 | 21 |