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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS46374US | ICNET - Ideal Concepts, Inc. | 256 | — | 1 |
| AS54472US | 54472 - South Jersey Radiology Associates, P.A. | 256 | — | 1 |
| AS32431US | AIRCASTLE - Aircastle Advisor LLC | 256 | — | 1 |
| AS39115US | NTTGN-NET-VFRPAR1 NTT Global Networks Incorporated | 256 | — | 1 |
| AS400352US | AFS-TX-01 - AFS Logistics, LLC | 256 | — | 1 |
| AS27212US | PERMAR - Per Mar Security | 256 | — | 1 |
| AS40425US | GLDS-CA - GREAT LAKES DATA SYSTEMS, INC. | 256 | — | 1 |
| AS40842US | ANB-WF - American National Bank | 256 | — | 1 |
| AS40184US | MLOC - MeridianLink, Inc. | 256 | — | 1 |
| AS54076US | NAVEX-IT-HOSTING - NAVEX Global, inc | 256 | — | 1 |
| AS393478US | HRBL-WS-INTERNET-BGP - Herbalife International of America, Inc. | 256 | — | 1 |
| AS400748US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | — | 1 |
| AS54130US | AFBA-AS - AFBA | 256 | — | 1 |
| AS402910US | ASN-JEFFERSON-01 - Jefferson | 256 | — | 1 |
| AS398986US | SECUREDGG - Gameserverkings | 256 | — | 1 |
| AS398953US | ABC-WAREHOUSE - ABC Warehouse | 256 | — | 1 |
| AS398164US | WHITEFISHCU-CO - WHITEFISH CREDIT UNION ASSOCIATION | 256 | — | 1 |
| AS6645US | OLEAN-GENERAL-HOSPITAL - OLEAN GENERAL HOSPITAL | 256 | — | 1 |
| AS399620US | NCISD - New Caney ISD | 256 | — | 1 |
| AS36537US | BRMIC-MURRAY-01 - Bear River Mutual Insurance Company | 256 | — | 1 |
| AS20168US | AM-US-AMER-PRECOR-PRECO-11 - Precor Incorporated | 256 | — | 1 |
| AS46740US | SWISHER-INTERNATIONAL - Swisher International, Inc. | 256 | — | 1 |
| AS394076US | HIGHRISE-ASN1 - HIGHRISE AI | 256 | — | 1 |
| AS36177US | EASTWESTBANK - EWB | 256 | — | 1 |
| AS46880US | CITY-ASN - City of Irvine | 256 | — | 1 |
| AS27614US | ELDERHOSTEL - Elderhostel, Inc. | 256 | — | 1 |
| AS398390US | AX-S-ANYWHERE - Ax-S-Anywhere | 256 | — | 1 |
| AS13930US | CMH - The Children's Mercy Hospital | 256 | — | 1 |
| AS398396US | NATOMAS-USD - Natomas Unified School District | 256 | — | 1 |
| AS205397US | AS-69HOST 69HOST LLC | 256 | — | 1 |
| AS399004US | COUNTERPATH-BOSTON - Counterpath, LLC | 256 | — | 1 |
| AS399766US | LOOK-TO-THE-RIGHT - Look To The Right, LLC | 256 | — | 1 |
| AS19912US | SKYPACKET-MCKEAN - SkyPacket | 256 | — | 1 |
| AS10551US | RAPID-CITY-REGIONAL - Monument Health Rapid City Hospital, Inc. | 256 | — | 1 |
| AS63350US | FBH-DMO-BGP - Riviera Utilities | 256 | — | 1 |
| AS36028US | TYSON-ENT-DC-VA1 - NEW CCH, LLC | 256 | 256 | 2 |
| AS400531US | WESTHOLT-ASN-01 - West Holt Memorial Hospital | 256 | — | 1 |
| AS27474US | IVN-LV - I-View Now, LLC | 256 | — | 1 |
| AS46097US | BMCSVL - BMC Software, Inc. | 256 | — | 1 |
| AS401195US | BSO-ASN-01 - Broward Sheriff's Office | 256 | — | 1 |
| AS40503US | AS40503 - Hiram College | 256 | — | 1 |
| AS31976US | REDHAT-0 - Red Hat, Inc. | 256 | — | 1 |
| AS46966US | CITYOFGI - City of Grand Island | 256 | 1 | 2 |
| AS3858US | NPPDNET - Nebraska Public Power District | 256 | — | 1 |
| AS18685US | PLANNET-OC-01 - PlanNet LLC | 256 | 1 | 2 |
| AS31821US | AS-RCS - Riverdale Country School | 256 | — | 1 |