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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 512 |
| — |
| 2 |
| AS27502US | CHOWCHILLADIST - Madera County Office of Education | 512 | — | 2 |
| AS395123US | CENTRACOM - CENTRACOM INTERACTIVE | 512 | 1 | 3 |
| AS3952US | TELLABS-ASN - Nokia of America Corporation | 512 | — | 1 |
| AS395617US | PLYMOUTH - Plymouth Poultry Company | 512 | — | 2 |
| AS152879US | PHOENIXNAP-AS-TPE0 - PhoenixNAP LLC | 512 | 257 | 4 |
| AS30471US | RALEIGH-ENTERPRISES - Raleigh Film & Television Studios, Inc. | 512 | — | 2 |
| AS393914US | INVITAE-01 - Invitae Corp | 512 | — | 2 |
| AS19663US | CASS-STL - CASS INFORMATION SYSTEMS | 512 | — | 2 |
| AS36214US | GENERAL-INFORMATICS - General Informatics, LLC | 512 | — | 2 |
| AS54542US | K-DATA01 - K-Data Systems, LLC | 512 | — | 1 |
| AS16394US | KILLEEN-INDEPENDENT-SCHOOL-DISTRICT - Killeen ISD | 512 | — | 2 |
| AS17317US | THING5-NA - Thing5, LLC | 512 | — | 2 |
| AS930US | CITY-OF-CELINA - CITY OF CELINA | 512 | — | 2 |
| AS398070US | MESQUITEISD-AS - Mesquite Independent School District | 512 | — | 2 |
| AS198988US | VODE-SOFT-LLC Vode Soft LLC | 512 | — | 2 |
| AS30515US | USP - USP | 512 | — | 2 |
| AS11020US | ANSI - RUSTIC RESOURCES, LLC | 512 | 16 | 3 |
| AS395057US | CAREOREGON - CareOregon | 512 | — | 2 |
| AS393697US | HUBUSILEGVDCSUB - Hub International | 512 | — | 2 |
| AS40534US | AM-AVK-MINDEN - American AVK Company | 512 | — | 2 |
| AS36467US | MAINLINE-INFORMATION-SYSTEMS - Mainline Information Systems Inc. | 512 | — | 2 |
| AS40617US | HPE-AI-CLOUD - HEWLETT PACKARD ENTERPRISE COMPANY | 512 | — | 2 |
| AS394566US | ALEGEUS-AS - ALEGEUS TECHNOLOGIES, LLC | 512 | 1 | 3 |
| AS26532US | MACLEAN-FOGG - Mac Lean-Fogg Company | 512 | — | 2 |
| AS3425US | ESNET-AS - ESnet | 512 | — | 2 |
| AS401503US | MERIDIAN-C-ATL1 - Meridian Cooperative, Inc. | 512 | — | 2 |
| AS402786US | HC-COMMACK - Heat | 512 | — | 2 |
| AS40879US | LOS-ALAMOS-COUNTY - Incorporated County of Los Alamos | 512 | — | 2 |
| AS401426US | MHN - St. Mary's Medical Center, Inc. | 512 | 256 | 3 |
| AS46173US | OMNIS-2 - Omnis Network, LLC | 512 | 2 | 4 |
| AS19514US | MAGTEK-HQ - MagTek Inc. | 512 | — | 1 |
| AS62974US | OOCL-SLC - OOCL (USA) Inc. | 512 | — | 2 |
| AS401229US | STAPLES-EQUINIX-CENTRAL - Staples, Inc | 512 | — | 2 |
| AS402164US | ROFAEL-01 - Rofael Aleezada, Sole Proprietorship | 512 | 1 | 3 |
| AS1082US | HBH-ASN-1 - Zenith American Solutions, Inc. | 512 | — | 2 |
| AS394137US | SCUHS - Southern California University of Health Sciences | 512 | — | 1 |
| AS46283US | SEARCY-MAIN-CAMPUS - Harding University, Inc. | 512 | — | 2 |
| AS399568US | OFF-GRID-COMMUNICATIONS-LLC - Off-Grid Communications LLC | 512 | 4.1K | 3 |
| AS396254US | ALARIS-1 - Kodak Alaris | 512 | — | 2 |
| AS398883US | WINGMAN-IT-SERVICES - Wingman IT Services | 512 | 16 | 3 |
| AS33347US | NAVICENT - NAVICENT HEALTH | 512 | — | 2 |
| AS400774US | NATURALWIRELESS - Natural Wireless, LLC | 512 | — | 1 |
| AS398011US | LYNDENDOOR - Lynden Door, Inc. | 512 | — | 2 |
| AS11428US | BEAM-GLOBAL - Jim Beam Brands Co. | 512 | — | 2 |
| AS406US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 2 |
| AS27291US | CDS - Century Data Service, Inc | 512 | — | 2 |