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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. | 218M | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 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 | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| — |
| 1 |
| AS36268US | BUNNY - Bunny & Tomato Interconnect, Inc. | 256 | 1 | 2 |
| AS17142US | THERASOFTONLINE - Therasoft Inc | 256 | — | 1 |
| AS393462US | COLLETTE-HEALTH - Collette Health, LLC | 256 | 1 | 2 |
| AS396383US | SEC-98-100-228-0 - SECURA INSURANCE HOLDINGS, INC. | 256 | — | 1 |
| AS46254US | OMNI-NOC - OMNI Data, LLC | 256 | — | 1 |
| AS25928US | AS-WISPER-LZR - Wisper ISP, LLC | 256 | — | 1 |
| AS62495US | IDISCOVER-LLC - I Discover, LLC | 256 | — | 1 |
| AS63207US | LBJI-ASN - Lakeshore Bone & Joint, Institute P.C. | 256 | — | 1 |
| AS46492US | SWMICH-EDU-AS-01 - Southwestern Michigan College | 256 | — | 1 |
| AS398902US | CASS-REGIONAL - Cass Regional Medical Center | 256 | — | 1 |
| AS64252US | LITE-PIPES - Lite Pipes Communications LLC | 256 | — | 1 |
| AS401340US | HCIFIRSTASNAME - Hussey Communications Inc | 256 | — | 1 |
| AS19348US | CITY-OF-BRENTWOOD---TENNESSEE - City of Brentwood | 256 | — | 1 |
| AS934US | BSTI - Big Sky Tech & Internet, Inc. | 256 | 256 | 2 |
| AS30626US | EAMC-INET - East Alabama Medical Center | 256 | — | 1 |
| AS401977US | SNC-TUOL - Sierra Nevada Communications | 256 | — | 1 |
| AS396210US | AAAHC-HQ - Accreditation Association for Ambulatory Health Care, Inc. | 256 | — | 1 |
| AS22757US | CITY-OF-AKRON-OHIO - City of Akron | 256 | — | 1 |
| AS399691US | MAJCS-CCOM - Washington County Consolidated Communications Agency | 256 | — | 1 |
| AS30156US | BDG-TECHNOLOGIES - BDG Technologies LLC | 256 | — | 1 |
| AS21754US | MARKEL-CORPORATION - Markel Corporation | 256 | — | 1 |
| AS54656US | CALWATER - California Water Service Company | 256 | — | 1 |
| AS33693US | AS-TIERP-33693 - TierPoint, LLC | 256 | — | 1 |
| AS399762US | BUCKEYE-CITYNET-01 - City of Buckeye | 256 | — | 1 |
| AS396898US | BMG-ASN - Capital City Home Loans | 256 | — | 1 |
| AS40719US | AS40719 - One William Street Capital Management, L.P. | 256 | — | 1 |
| AS19896US | AS-ALBROHOLDINGS-1 - Albro Holdings LLC | 256 | 1 | 2 |
| AS54808US | SUN-COAST-RESOURCES - SUN COAST RESOURCES, INC | 256 | — | 1 |
| AS394683US | ACHE - Arkansas Colleges of Health Education | 256 | — | 1 |
| AS402409US | QFANALYTICS - QF | 256 | — | 1 |
| AS402117US | WHITE-TIE-PRODUCTIONS - White Tie Productions LLC | 256 | — | 1 |
| AS16636US | CWF-ASN-BGP - The Colonial Williamsburg Foundation | 256 | — | 1 |
| AS393364US | STARWOOD-NYC-417FIFTH - Marriott International, Inc. | 256 | — | 1 |
| AS198015US | INOXWEB-LLC Inoxweb LLC | 256 | — | 1 |
| AS397059US | CNSC-PBI - Polar Bears International | 256 | — | 1 |
| AS6302US | AGP-AS1 - AG PROCESSING INC., A COOPERATIVE | 256 | — | 1 |
| AS15019US | ZAPPOS - Zappos.com, Inc. | 256 | — | 1 |
| AS63064US | YCAS - Yotta Connect LLC | 256 | — | 1 |
| AS22897US | 84LUMB-CORP - 84 LUMBER COMPANY | 256 | — | 1 |
| AS394186US | SE-BRANDS-01 - Self Esteem Brands, LLC | 256 | 4 | 2 |
| AS400009US | RELSPACE-ASN-01 - Relativity Space, Inc. | 256 | — | 1 |
| AS11494US | KELLOGGCC - Kellogg Community College | 256 | — | 1 |
| AS53557US | PITTS-18 - Pittsburgh Penguins LP | 256 | — | 1 |
| AS18473US | EC-BACKUP - Spring View Hospital | 256 | — | 1 |
| AS30379US | JEFFPARISH - Parish of Jefferson | 256 | — | 1 |
| AS51095US | E1-EMEA EdgeUno, Inc. | 256 | 16 | 2 |