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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 768 |
| — |
| 2 |
| AS32550US | EQUINIX-EC-SE - Equinix, Inc. | 768 | 1 | 4 |
| AS46436US | XR-ASN1 - XR Trading LLC | 768 | — | 3 |
| AS399135US | 617A-AS-1 - 617A Corporation | 768 | 2 | 5 |
| AS18929US | AAMVA - THE AMERICAN ASSOCIATION OF MOTOR VEHICLE ADMINISTRATORS | 768 | — | 3 |
| AS30532US | 3310-617INTERNET - Healthcare Realty Trust, Inc. | 768 | — | 3 |
| AS16714US | TENNANT-COMPANY - Tennant | 768 | — | 2 |
| AS142561US | XTDEF-LIMITED-AS-AP - XTDEF Limited | 768 | 8 | 11 |
| AS32291US | ANNEARUNDELMEDICALCENTER - ANNE ARUNDEL MEDICAL CENTER | 768 | — | 3 |
| AS399224US | PERATON-CORE - PERATON INC. | 768 | 65.5K | 4 |
| AS394597US | HCDL-NEW-JERSEY-DATA-CENTER - H5 Data Centers | 768 | — | 3 |
| AS46889US | CLEARENT - Clearent LLC | 768 | — | 3 |
| AS62594US | PDT - PDT Partners LLC | 768 | — | 3 |
| AS17244US | MCNEESE - McNeese State University | 768 | — | 3 |
| AS33405US | HESS - Hess Corporation | 768 | — | 2 |
| AS32848US | ETON-INTERNATIONAL-INC - ETON INTERNATIONAL, INC. | 768 | — | 3 |
| AS12144US | CLOUD-GRID - Cloud Grid Networks | 768 | — | 3 |
| AS26307US | HORACE-MANN-EDUCATORS-CORPORATION - Horace Mann Service Corporation | 768 | — | 3 |
| AS63404US | AGIOS - Agios Pharmaceuticals, Inc. | 768 | — | 3 |
| AS36677US | KATUN-AS-1 - Katun Corporation | 768 | — | 2 |
| AS23514US | QUANTLAB - QUANTLAB FINANCIAL LLC | 768 | — | 3 |
| AS29817US | LCB-ARIN-113 - LAKE CITY BANK | 768 | — | 3 |
| AS33753US | WBMI - West Bend Mutual Insurance Company | 768 | — | 3 |
| AS395291US | SC-CORE - Snapchat, Inc | 768 | — | 3 |
| AS15017US | MUFSD-ASN-01 - Malverne Union Free School District | 768 | — | 3 |
| AS401710US | AS-CLOUDMESHLABS - CloudMesh Labs LLC | 768 | 3 | 6 |
| AS63306US | TOUCHTONE-LA - TouchTone Communications | 768 | — | 3 |
| AS36367US | AGN-TECH - Alchemy Global Networks, LLC | 768 | 3 | 6 |
| AS54040US | NBCUNI - NBCUniversal | 768 | — | 2 |
| AS20171US | ASN-KEYWORDS-STUDIOS - Keywords Studios US INC. | 768 | — | 2 |
| AS27575US | PROVAK - Providence Hospital | 768 | — | 3 |
| AS398152US | ASN-CW-1 - Choice Wireless | 768 | — | 3 |
| AS22907US | AS22907 - Conduent Business Services, LLC | 768 | — | 3 |
| AS53528US | SHARP-ASN - Sharp Electronics Corporation | 768 | — | 3 |
| AS1012US | MOE-BGP - Moe BGP Co. | 768 | — | 2 |
| AS40220US | MARIA - Virginia Polytechnic Institute and State Univ. | 768 | 69.8K | 7 |
| AS23249US | AVECTRA - Avectra | 768 | — | 2 |
| AS398780US | BEC - Bluebonnet Electric Cooperative, Inc. | 768 | — | 3 |
| AS397554US | HAPPYCYCLING - Happy Cycling LLC | 768 | 131.1K | 4 |
| AS393707US | ABM-IND - ABM Industries | 768 | — | 3 |
| AS394419US | AKI-CHIN - Ak-Chin Indian Community | 768 | — | 3 |
| AS32053US | SULLCROM - SULLCROM | 768 | — | 3 |
| AS27477US | POLAR-PUBLIC-HUB-POP-ASN - IBM | 768 | — | 3 |
| AS63130US | NATIONAL-LOUIS-UNIVERSITY - National-Louis University | 768 | — | 3 |
| AS15327US | EPS-ECS - EPS US, LLC | 768 | — | 3 |
| AS137220US | TII-AS-SG - Texas Instruments, Inc | 768 | — | 3 |
| AS397625US | TPC - Tessy Plastics Corp. | 768 | — | 2 |