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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 | 21,160 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| 1 |
| 2 |
| AS54435US | THE-WESTMINSTER-SCHOOLS - The Westminster Schools, INC | 256 | — | 1 |
| AS399029US | IXD-MEMBER-SERVICES - IX-Denver | 256 | 65.5K | 2 |
| AS27413US | NTHL - NETWORK TRANSIT HOLDINGS LLC | 256 | 4.1K | 2 |
| AS36199US | IILL-2-36199 - Cree Lighting a company of IDEAL INDUSTRIES, INC | 256 | — | 1 |
| AS393866US | SEGAS-01 - Southeast Gas | 256 | — | 1 |
| AS397091US | LASERFICHE-ASN-01 - Laserfiche | 256 | — | 1 |
| AS27389US | MANSFIELDISD - Mansfield Independent School District | 256 | — | 1 |
| AS11639US | EQUITY-TRUST-COMPANY - ETC | 256 | — | 1 |
| AS55167US | NADA - NADA | 256 | — | 1 |
| AS40272US | ALLENINSTITUTE - Allen Institute | 256 | — | 1 |
| AS33615US | EVHC - Envision Healthcare Holdings, Inc | 256 | — | 1 |
| AS11678US | DOE-NTS-AS - U.S. Department of Energy | 256 | 65.5K | 2 |
| AS401670US | ANDO-CE - Care Everywhere | 256 | — | 1 |
| AS53854US | AS53854 - Griffin Health Services Corp. | 256 | — | 1 |
| AS399386US | LCOUNTY-ASN - Laramie County Government | 256 | — | 1 |
| AS397603US | SAHA-AS - Satellite Affordable Housing Associates | 256 | — | 1 |
| AS397874US | LUCASFILM-VAN - Lucasfilm Ltd. LLC | 256 | — | 1 |
| AS29786US | ABRAMSCAPITALMANAGEMENTLLC - Abrams Capital Management, LLC | 256 | — | 1 |
| AS1055US | CITY-OF-MANTECA-CALIFORNIA - City of Manteca | 256 | — | 1 |
| AS22941US | AS-NOCMGT-01 - The HelpDesk Inc | 256 | — | 1 |
| AS63289US | ASN-MBCI - WFMZ-TV | 256 | — | 1 |
| AS26520US | HLITSERVICES - HLITSERVICES LLC | 256 | 4.1K | 2 |
| AS401899US | BAER-CONSULTING-2 - Baer Consulting, Incorporated | 256 | — | 1 |
| AS23090US | PETCO-CH3 - Petco | 256 | — | 1 |
| AS25615US | BBV - Broadband Visions, LLC | 256 | — | 1 |
| AS26841US | HIDDEN-VILLA-RANCH - Hidden Villa Ranch | 256 | — | 1 |
| AS32662US | GMCR - GREEN MOUNTAIN COFFEE ROASTERS, INC. | 256 | — | 1 |
| AS23325US | MCL-ASN - Magnitude Capital, LLC | 256 | — | 1 |
| AS397627US | CLOUDCONNECT - CloudConnect, LLC | 256 | — | 1 |
| AS54962US | MITCHELL-INTERNATIONAL - Mitchell International | 256 | — | 1 |
| AS33418US | EQUITABLE-INTERNET-INITATIVE - Detroit Community Technology Project | 256 | — | 1 |
| AS46828US | MILESK-AS1 - SILVER STAR BRANDS, INC. | 256 | — | 1 |
| AS46116US | FIXNETIX-ARIN-BGP-ASN - Fixnetix Inc | 256 | — | 1 |
| AS32876US | LYCOMING-COLLEGE - Lycoming College | 256 | — | 1 |
| AS213124US | zylinktech-net zylinktech LLC | 256 | 86K | 9 |
| AS3291US | PSINet-Europe GTT Communications Inc. | 256 | — | 1 |
| AS22396US | LANVERA - Lanvera Ltd | 256 | — | 1 |
| AS393673US | JDL-AS-1 - SiteOne Landscape Supply | 256 | — | 1 |
| AS32049US | SULLCROM - SULLCROM | 256 | — | 1 |
| AS46134US | AAA-MWG-UT - AAA-Arizona, Inc. | 256 | — | 1 |
| AS397314US | WPMALONE - Allcare Pharmacy | 256 | — | 1 |
| AS402173US | SCHENANIGANS-01 - I Need Help Alliance | 256 | 5 | 6 |
| AS27559US | ASN-PCT - Peets Coffee & Tea | 256 | — | 1 |
| AS399464US | MICROSULA - Microsula, Inc. | 256 | — | 1 |
| AS400491US | PCEWEST - PCE Systems | 256 | — | 1 |
| AS402045US | NOCKYRENTAL - NOCKYRENTAL LLC | 256 | — | 1 |