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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218M | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| VENANGO-WAN - County of Venango |
| 256 |
| — |
| 1 |
| AS93US | NTTA-93 - NTT America, Inc. | 256 | 1 | 2 |
| AS393848US | IKEA-NA-AS - IKEA North America Services, LLC | 256 | — | 1 |
| AS398805US | SOC-REDUNDANCY - Securitas Security Services USA, Inc | 256 | — | 1 |
| AS54151US | ABOUNDCU - Abound Credit Union | 256 | — | 1 |
| AS32643US | RDI - RESOURCE DATA, INC. | 256 | — | 1 |
| AS401303US | NNM-004 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS32128US | ASN-RICHLINE-NY - Richline Group Inc | 256 | — | 1 |
| AS29940US | LORETTO-MANAGEMENT-CORP - Loretto Management Corp. | 256 | — | 1 |
| AS62690US | LAMPO-AS - Ramsey Solutions | 256 | — | 1 |
| AS46714US | IPC-ATL-56-TELX - IP Communications LLC | 256 | — | 1 |
| AS30577US | CITY-OF-BELLEVUE - City of Bellevue IT Dept | 256 | — | 1 |
| AS53487US | VHS-BOMA - Vanguard Health Management, Inc. | 256 | — | 1 |
| AS12017US | PRM-078 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS18668US | DESCHUTES-COUNTY-911 - Deschutes 911 | 256 | — | 1 |
| AS14619US | AS-THERA-US - THERA NETWORKS | 256 | 4.1K | 2 |
| AS54476US | EMGTELECOM - VOX CONNECT INC | 256 | — | 1 |
| AS59662US | DOCUS-EMEA-PROD DocuSign, Inc. | 256 | — | 1 |
| AS20380US | 20380 - Apex Systems, LLC | 256 | — | 1 |
| AS18781US | ASTRACORE-VENTURES - AstraCore Ventures LLC | 256 | 256 | 2 |
| AS30244US | PSI-NY-1 - Amherst Pierpont Securities | 256 | — | 1 |
| AS394235US | MVCSKYNET - Many Ventures Compute L.L.C. | 256 | — | 1 |
| AS12020US | MHSC-BGP-ASN - Methodist Hospital of Southern California | 256 | — | 1 |
| AS396474US | ANNEX-FIBER - Annex Fiber Inc. | 256 | 256 | 2 |
| AS18695US | BMMI-WCADMIN-01 - Bay Medical Management, LLC | 256 | — | 1 |
| AS400797US | PIC-EXT - Ping Identity Corporation | 256 | 1 | 2 |
| AS33435US | CITYOFSPRINGFIELDMA - City of Springfield, Massachusetts | 256 | — | 1 |
| AS11895US | KOFAX - Kofax, Inc. | 256 | — | 1 |
| AS399603US | APPSYNERGY - APPSYNERGY INC | 256 | — | 1 |
| AS19725US | COHPWE - City Of Houston - Public Works | 256 | — | 1 |
| AS402211US | WRM-033 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS25894US | MX2TECH - MX2 Technology, Inc | 256 | — | 1 |
| AS15134US | PWCSA - Prince William County Service Authority | 256 | — | 1 |
| AS398254US | PRELUDE-SERVICES - Prelude Services | 256 | — | 1 |
| AS12276US | SFMIX-MGMT - San Francisco Metropolitan Internet Exchange (SFMIX) | 256 | 17 | 3 |
| AS398233US | RURALREACH-01 - IVSComm, Inc | 256 | — | 1 |
| AS393851US | CURTIS - Taylor Corporation | 256 | — | 1 |
| AS399332US | ASJ2SW - J2 Technology LLC | 256 | — | 1 |
| AS399490US | DWS-LTAM-AR - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS399722US | AS-MS-78065 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS15077US | MAG-TEK - MAG-TEK, INC. | 256 | — | 1 |
| AS19841US | ISNS1 - ISNS | 256 | — | 1 |
| AS54815US | TSI-SEMICONDUCTORS - TSI SEMICONDUCTORS | 256 | — | 1 |
| AS62934US | FFBF-PROD01 - First Federal Bank of Florida | 256 | — | 1 |
| AS394961US | SAINT-ANSELM-COLLEGE - Saint Anselm College | 256 | — | 1 |
| AS40658US | USM-OK1 - US Monitoring, Inc. | 256 | — | 1 |
| AS400273US | JSL-76-ASN - Johnstone Supply, LLC | 256 | — | 1 |