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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS400431US | EK-COMPUTER-COLOCATION - E K Computer, Inc. | 256 | — | 1 |
| AS40644US | IFS - Integra Financial Services, LLC | 256 | — | 1 |
| AS394664US | PECKHAM-INC - Peckham, Inc. | 256 | — | 1 |
| AS63477US | CONIFER-EDGE - Coniferous Systems, LLC | 256 | 1 | 2 |
| AS22870US | AS22870 - Syniverse Technologies, LLC | 256 | — | 1 |
| AS12029US | AS12029 - TenSpire Network | 256 | — | 1 |
| AS22825US | RCLS-INTERNET - Ramapo Catskill Library System | 256 | — | 1 |
| AS36059US | ETOGY-01 - Etogy, Inc. | 256 | — | 1 |
| AS21950US | AUTOTEC - AutoTec LLC | 256 | — | 1 |
| AS400771US | CODEHOF - Codehof LLC | 256 | 1 | 2 |
| AS63301US | GSR-ARIN-01 - MEI-GSR Holdings, LLC | 256 | — | 1 |
| AS397448US | DBSL-WQG-01 - DH Business Services LLC | 256 | — | 1 |
| AS400488US | IZONE-BB-01 - iZone Broadband LLC. | 256 | 65.5K | 2 |
| AS32662US | GMCR - GREEN MOUNTAIN COFFEE ROASTERS, INC. | 256 | — | 1 |
| AS400181US | SIGYN-SYSTEMS-0 - Sigyn Systems | 256 | 4.1K | 2 |
| AS396489US | PPGNHI - PLANNED PARENTHOOD GREAT NORTHWEST, HAWAI'I, ALASKA, INDIANA, AND KENTUCKY | 256 | — | 1 |
| AS399824US | INFINITE-Q-NETWORKS - Infinite Q Networks | 256 | 4.1K | 2 |
| AS2886US | AS2886 - Anton Kapela, Sole Proprietorship | 256 | — | 1 |
| AS395117US | LIMS - LabVantage Solutions, Inc | 256 | — | 1 |
| AS10517US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS10517 - The Bank of New York Mellon Corporation | 256 | — | 1 |
| AS53777US | FWPARKER - Francis W. Parker School | 256 | — | 1 |
| AS64287US | IPS - IPS-INTEGRATED PROJECT SERVICES, LLC | 256 | — | 1 |
| AS25987US | WESTCHESTER-LIBRARY - Westchester Library System | 256 | — | 1 |
| AS23120US | LEGACY-OKC-ASN - Legacy | 256 | — | 1 |
| AS394048US | GSE-LINK-01 - Global Satellite Engineering, Inc | 256 | 4.1K | 2 |
| AS401467US | ANDERSON-KELLY - Anderson-Kelly Associates, Inc. | 256 | 1 | 2 |
| AS4893US | RGM-ASN-1 - DRW Holdings, LLC | 256 | — | 1 |
| AS55224US | MCS-AS - Marietta City Schools | 256 | — | 1 |
| AS33540US | ALZHEI-ASN - Alzheimers Assoc. | 256 | — | 1 |
| AS33201US | TETF - Tilver Enterprises, LLC | 256 | 16 | 2 |
| AS26264US | TVI-AS - TVI Inc | 256 | — | 1 |
| AS402045US | NOCKYRENTAL - NOCKYRENTAL LLC | 256 | — | 1 |
| AS29792US | NETAPP-AS-2 - NetApp, Inc. | 256 | 1 | 2 |
| AS19922US | AS-OASIS - OASIS NETWORKS | 256 | — | 1 |
| AS22396US | LANVERA - Lanvera Ltd | 256 | — | 1 |
| AS55087US | BRAZOS-ASN-1 - Brazos County | 256 | — | 1 |
| AS398934US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS402069US | MONETA - Moneta Solutions, Inc | 256 | 5 | 6 |
| AS26377US | EXPERTEKSYSTEMS - Expertek Systems Inc. | 256 | — | 1 |
| AS25737US | JONE - Jone Broadband LLC | 256 | 256 | 2 |
| AS55063US | COF-BUSINESS - City of Fairfax | 256 | — | 1 |
| AS395001US | STATEOFMAINE-ASN1 - State of Maine | 256 | — | 1 |
| AS401786US | FRACCTAL - Fracctal, Inc. | 256 | 1 | 2 |
| AS399681US | SARNOVA-DC-ASN01 - SARNOVA, INC. | 256 | — | 1 |
| AS15230US | WARREN-GENERAL-HOSPITAL - Warren General Hospital | 256 | — | 1 |
| AS40293US | BENEDICTINE-UNIVERSITY - BENEDICTINE UNIVERSITY | 256 | — | 1 |