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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 |
| 256 |
| — |
| 1 |
| AS394004US | HURLEY-MEDICAL-ASN - Hurley Medical Center | 256 | — | 1 |
| AS394888US | WOW-LOGISTICS-A - WOW Logistics Company | 256 | — | 1 |
| AS22564US | TRABON-SOLUTIONS - Trabon Solutions | 256 | — | 1 |
| AS25678US | SCHIFFHARDIN - Schiff, Hardin & Waite | 256 | — | 1 |
| AS401456US | DREWUN-01 - Drew University | 256 | — | 1 |
| AS395978US | VALLEYWATER - SANTA CLARA VALLEY WATER DISTRICT PUBLIC FACILITIES FINANCING CORPORATION | 256 | — | 1 |
| AS16678US | AUSRAD - Austin Radiological Association | 256 | — | 1 |
| AS53328US | RYDIN-ASN-01 - Rydin | 256 | — | 1 |
| AS393897US | GORDIAN-GROUP - The Gordian Group, Inc. | 256 | — | 1 |
| AS30281US | WASHPOST - Washington Post | 256 | — | 1 |
| AS393572US | FINGERLAKESNETWORK - FingerLakesNetwork LLC | 256 | — | 1 |
| AS393983US | WWWROCKFORD - Wolverine Worldwide | 256 | 256 | 2 |
| AS46689US | LEE-WIRELESS-01 - Lee Wireless, LLC | 256 | 256 | 2 |
| AS398339US | PRIME-NET-15-CA - PrimeNet, Inc | 256 | — | 1 |
| AS397949US | REG-US-ASN-01 - Chevron Corporation | 256 | — | 1 |
| AS19354US | WJCC-PUBLIC-SCHOOLS - Williamsburg James City County Public Schools | 256 | — | 1 |
| AS40180US | VRC-NET - van Ryck Communications LLC | 256 | — | 1 |
| AS10988US | COLLEGE-OF-WESTERN-IDAHO - College of Western Idaho | 256 | — | 1 |
| AS401873US | STM-014 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS20423US | SUQUAMISH-TRIBE - Suquamish Tribe | 256 | — | 1 |
| AS36652US | KOCHTRUCKING - KOCH TRUCKING | 256 | — | 1 |
| AS398845US | MCC-WACO - McLennan Community College | 256 | — | 1 |
| AS33699US | RUSSELL-MARKETING-RESEARCH - Russell Marketing Research, Inc. | 256 | — | 1 |
| AS30087US | APCO - Automobile Protection Corporation | 256 | — | 1 |
| AS13647US | NETACTUATE - NetActuate, Inc | 256 | — | 1 |
| AS393965US | ENDLAYER - EndLayer, LLC | 256 | — | 1 |
| AS398428US | NMTRANS-HQ-AS01 - N&M Transfer Co., Inc. | 256 | — | 1 |
| AS1315US | IPFS - Imperial PFS | 256 | — | 1 |
| AS63046US | BRAVE - Brave Software, Inc. | 256 | — | 1 |
| AS395999US | KIM-199-120-191-0 - Kimball International, Inc. | 256 | — | 1 |
| AS395186US | POP - POP | 256 | — | 1 |
| AS400027US | ECH-01 - Earlychildhood LLC | 256 | — | 1 |
| AS1958US | NCRWIN1958 - NCR Voyix Corporation | 256 | — | 1 |
| AS397940US | FCG-AS-01 - Frederick County Government | 256 | — | 1 |
| AS393379US | SEI-HOUSTON - Seismic Exchange, Inc. | 256 | — | 1 |
| AS394969US | LOLAWIRELESS - Lola Wireless | 256 | 65.5K | 2 |
| AS17127US | KGI-NV - Konami Gaming, Inc. | 256 | — | 1 |
| AS395284US | SHENKMANCAPITAL - Shenkman Capital Management, Inc. | 256 | — | 1 |
| AS16627US | BCCA-AS - Board of Commissioners of the County of Allen | 256 | — | 1 |
| AS397684US | CLOUD-TECHNOLOGIES-INC - Cloud Technologies, Inc | 256 | — | 1 |
| AS400974US | HMG-MA-01 - Kia America, Inc. | 256 | — | 1 |
| AS393373US | MORANTELECOLLC - MoranTeleco LLC | 256 | 256 | 2 |
| AS394108US | GMS-AS394108 - Gypsum Management and Supply, Inc. | 256 | — | 1 |
| AS40645US | GWAEA-AS01 - Grant Wood Area Education Agency | 256 | — | 1 |
| AS397261US | ENDELL-ST - H CLUB LOS ANGELES | 256 | — | 1 |
| AS46221US | MISCHOICE - MIS Choice, Inc. | 256 | — | 1 |