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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 |
| INFOBUNKER - Infobunker, L.L.C. |
| 6.9K |
| 65.5K |
| 13 |
| AS6082US | IPIFONY-AS - IPiFony Systems, Inc. | 6.9K | 16 | 16 |
| AS16739US | MIDCO-NET-INV - Midcontinent Communications | 6.9K | — | 7 |
| AS203501US | EMARSYS-US-AS Emarsys North America, Inc | 6.9K | — | 23 |
| AS15211US | SQUARE - Square, Inc. | 6.9K | 65.6K | 16 |
| AS401615US | ACCK-LTD - ACCK LLC | 6.9K | 113 | 23 |
| AS12200US | RACKSPACE - Rackspace Hosting | 6.9K | 1 | 17 |
| AS32567US | AS32567 - GameStop, Inc. | 6.7K | — | 9 |
| AS62915US | WTECHLINK - Wtechlink Incorporated | 6.7K | — | 9 |
| AS19273US | LGEENERGY - Louisville Gas & Electric | 6.7K | — | 26 |
| AS40027US | NETFLIX-ASN - Netflix Streaming Services Inc. | 6.7K | 26 | 40 |
| AS19684US | OGITAL - Latigo, LLC | 6.7K | 161 | 22 |
| AS398778US | APTITUDE-INTERNET - Aptitude Internet Solutions | 6.7K | 65.5K | 20 |
| AS40703US | WBD-AS40703 - Turner Broadcasting System, Inc. | 6.7K | — | 11 |
| AS23277US | SMART-CITY-SDCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 6.7K | — | 3 |
| AS14851US | BANNER-HEALTH-ARIZONA - BANNER HEALTH | 6.7K | — | 11 |
| AS40289US | PHX-CGIAM - CGI TECHNOLOGIES AND SOLUTIONS INC. | 6.7K | 512 | 6 |
| AS397324US | GWI-CI-ASN - Gallatin Wireless Internet, LLC | 6.7K | 131.1K | 6 |
| AS33029US | OSAGE-MUNICIPAL-COMMUNICATIONS-UTILITY - Osage Municipal Communications Utility | 6.7K | 65.5K | 11 |
| AS2894US | CALIF-DWR - California Department of Water Resources | 6.7K | — | 24 |
| AS19400US | SPX-FLOW-AS - SPX Flow Inc. | 6.7K | — | 12 |
| AS19305US | TNSI-AS-19305 - Transaction Network Services, Inc. | 6.7K | — | 14 |
| AS26231US | SFIA-ASN - San Francisco International Airport | 6.7K | — | 11 |
| AS46256US | SUTTERHEALTH - Sutter Health | 6.7K | — | 4 |
| AS26091US | INDDC - Indiana Data Center, LLC | 6.7K | — | 5 |
| AS54238US | SATCOM-DIRECT-INC - Satcom Direct Inc. | 6.7K | — | 7 |
| AS54806US | LRMCOM1 - Lrm-Com, Inc. | 6.7K | — | 18 |
| AS22827US | SMART-CITY-OCCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 6.7K | — | 11 |
| AS16468US | AIRFIBER - AirFiber WISP LLC | 6.7K | — | 11 |
| AS14328US | RRD - R.R. Donnelley and Sons, Co. | 6.7K | — | 25 |
| AS400624US | AMS-FTC - HEWLETT PACKARD ENTERPRISE COMPANY | 6.7K | 1 | 8 |
| AS396040US | INLAND-CELLULAR - Inland Cellular | 6.7K | — | 4 |
| AS33668US | CMCS - Comcast Cable Communications, LLC | 6.7K | 69 | 95 |
| AS30456US | COSMIC - Cosmic Global Networks | 6.7K | 65.5K | 27 |
| AS46918US | GLPEER - GLOBALHOSTINGSOLUTIONS INC | 6.7K | — | 10 |
| AS398808US | ACS-PUBLIC-01 - Arch Capital Services LLC | 6.7K | — | 25 |
| AS53497US | WEBPERCEPTION - WebPerception, LLC | 6.7K | — | 4 |
| AS54623US | ONE-INTERNET-AMERICA - One Internet America, LLC | 6.7K | — | 12 |
| AS19685US | HCIS-1 - CSI Telecom Group, Inc | 6.7K | — | 26 |
| AS22071US | TRADINGSCREEN-INC - TS Imagine INC | 6.7K | — | 10 |
| AS33255US | HAMDEN-ASN - Hampden-Sydney College | 6.7K | — | 3 |
| AS394998US | LAKELAND-INTERNET - LakeLand Internet LLC | 6.7K | 65.5K | 10 |
| AS19799US | HCS - Highland Communication Services | 6.7K | — | 6 |
| AS393474US | SCCRESA - St. Clair County Regional Educational Service Agency | 6.7K | — | 20 |
| AS7772US | ST-LOUIS-SCHNEIDER-DC - Schneider Automation, Inc. | 6.7K | — | 7 |
| AS14653US | PULSAR360 - Pulsar360 | 6.7K | — | 15 |
| AS393349US | EA-SANTA-CLARA - Electronic Arts, Inc. | 6.7K | — | 13 |