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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS396487US | DOUGH-INC-NY5 - dough, Inc. | — | — | 0 |
| AS396158US | AS-HOSTCIRCLE - HOSTCIRCLE INC. | — | — | 0 |
| AS354US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | 512 | 2 |
| AS395106US | BPR-OF-TN-AS - Board of Professional Responsibility of the Supreme Court of Tennessee | — | — | 0 |
| AS395541US | OMH - Taylor Corporation | — | — | 0 |
| AS395294US | RED-VENTURES - Red Ventures, LLC | — | — | 0 |
| AS218789US | Soundvia-ASN Soundvia LLC | — | 20 | 5 |
| AS62608US | CONTINUUMMANAGEDSERVICESLLC - Continuum Managed Services, LLC | — | — | 0 |
| AS46464US | NB-PRIMARY-01 - Nybbles and Bytes Studios, LLC | — | 1 | 1 |
| AS394068US | NAVEX-GLOBAL-INC - NAVEX Global, inc | — | — | 0 |
| AS200360US | FOLF-SYSTEMS-AS Cooper Greer | — | 22 | 4 |
| AS393807US | AS-INTULSE-VA - Intulse, Ltd | — | — | 0 |
| AS10762US | CDN-DNS - TestDrive Corporation | — | — | 0 |
| AS10669US | JOBTRAK-AS - Jobtrak Corp. | — | — | 0 |
| AS10652US | NETSIDE - NetSide Corporation | — | — | 0 |
| AS10305US | VERINET - Verinet Communications, Inc. | — | — | 0 |
| AS10451US | WARPDRIVE - Warpdrive Networks | — | — | 0 |
| AS10270US | NECROMIUM - Idex Technologies | — | — | 0 |
| AS401106US | TECHIES365 - Techies365 | — | 3 | 3 |
| AS11456US | NUVOX - Windstream Communications LLC | — | — | 0 |
| AS12016US | SDNBROS - SDNBROS LLC | — | — | 0 |
| AS4875US | LMC - Long Motor Corporation | — | — | 0 |
| AS5923US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5899US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5870US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4002US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS21687US | AS21687 - Crown Castle Fiber LLC | — | 1.5K | 3 |
| AS3956US | TX-METRO - Texas Metronet | — | — | 0 |
| AS11021US | NVH-ASN - North Valley Hospital | — | 256 | 1 |
| AS394416US | AVANADE - Avanade Inc | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3463US | LOGIN-NONAZ - Login, Inc. | — | — | 0 |
| AS3438US | ESNET-AS - ESnet | — | — | 0 |
| AS4562US | INTEX - Intex-Net | — | — | 0 |
| AS394536US | CLOUDFLARENET-SFO - Cloudflare, Inc. | — | 1 | 1 |
| AS4487US | EMTF-UPW - Air Force Systems Networking | — | — | 0 |
| AS200766US | BROWN-AS Kerry Lynn brown jr | — | 274 | 4 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4219US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4156US | USDA-1 - USDA | — | — | 0 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS394847US | AFS-4 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS394906US | PTI-SANDPOINTDC - PROTELLIGENT, INC. | — | — | 0 |
| AS394686US | CL-200 - Clearent LLC | — | — | 0 |
| AS397800US | AS-PRIMARY - ANVIL Systems Group, INC | — | 1 | 1 |
| AS395983US | AS-BT-D0 - Bankers Trust | — | — | 0 |