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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| INFINITUM-NIHIL - INFINITUM NIHIL |
| 512 |
| 1 |
| 2 |
| AS395654US | AGNCAS - AGNC Mortgage Management, LLC | 512 | — | 2 |
| AS22666US | GBHSD - Glenbrook High School District | 512 | — | 1 |
| AS53838US | BEACHBODYUS1 - Beachbody, LLC | 512 | — | 2 |
| AS46183US | MARYANNLIEBERTINC - MARY ANN LIEBERT, INC | 512 | — | 2 |
| AS53320US | INTERACTIVE-INTELLIGENCE-INC - Genesys Telecommunications Laboratories,Inc. | 512 | — | 2 |
| AS393448US | LIBERALLY-SINGAPORE - Liberally Network, LLC | 512 | 3 | 5 |
| AS394270US | CABI-LLC-1 - Cabi LLC | 512 | — | 2 |
| AS399781US | AE - AE Hosting | 512 | — | 2 |
| AS396247US | AESHS125 - Adlai E. Stevenson High School | 512 | — | 2 |
| AS398298US | NETSTRATUM - Netstratum | 512 | — | 2 |
| AS32050US | SULLCROM - SULLCROM | 512 | — | 2 |
| AS395464US | BEREAC - Berea College | 512 | — | 2 |
| AS20388US | ETI-FLL1 - Ewart Technologies, Inc. | 512 | — | 2 |
| AS33759US | REGENERON - Regeneron Pharmaceuticals Inc. | 512 | — | 2 |
| AS7767US | EB - Encyclopaedia Britannica | 512 | 1 | 3 |
| AS400894US | HUMBLEISD - Humble Independent School District | 512 | — | 2 |
| AS398048US | THR - THERMOS L.L.C. | 512 | — | 2 |
| AS397098US | ISLANDCLOUD - Island I.T. Solutions, LLC | 512 | — | 2 |
| AS25729US | CITY-OF-IRVING - City of Irving | 512 | — | 2 |
| AS397670US | CVCU-ASN - Covantage Credit Union | 512 | — | 1 |
| AS30255US | NYGC - New York Genome Center, Inc. | 512 | — | 2 |
| AS395240US | CARIAD-US - CARIAD, Inc. | 512 | — | 2 |
| AS18518US | ARES-MGMT - Ares Management LLC | 512 | — | 2 |
| AS11248US | MSTS-NET - TreviPay | 512 | — | 2 |
| AS17167US | MCSNOC01 - Microchip Computer Solutions, Inc. | 512 | — | 2 |
| AS46567US | BORDER-STATES-INDUSTRIES - Border States Industries | 512 | — | 2 |
| AS18533US | AAAWA-3605 - AAA Washington | 512 | — | 1 |
| AS397146US | FARMCREDIT-MIDAMERICA - Farm Credit Mid-America | 512 | — | 2 |
| AS393579US | LEE-MEMORIAL-HEALTH-SYSTEM - Lee Memorial Health System | 512 | — | 2 |
| AS36013US | MRESNET - Missouri River Energy Services | 512 | — | 2 |
| AS30061US | WINSUPPLY-INC - Winsupply Inc. | 512 | — | 2 |
| AS16693US | AS-MIKES-HARD - mikes hard lemonade | 512 | — | 2 |
| AS55181US | KEUKA-COLLEGE - Keuka College | 512 | — | 2 |
| AS399325US | APOG-GMU - Apogee Telecom Inc. | 512 | — | 1 |
| AS402806US | DUOCIRCLE - DuoCircle | 512 | — | 2 |
| AS14999US | USERWORLD - Userworld, INC | 512 | — | 2 |
| AS619US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS53546US | LEGION - Legion, Inc. | 512 | — | 1 |
| AS401612US | HUENET - hueNET | 512 | 2 | 4 |
| AS40205US | PRISMA-ASN-1 - PRISMA HOLDINGS, LLC | 512 | 3 | 5 |
| AS13969US | PMM-INC-AS - PROFESSIONAL MEDICAL MANAGEMENT, INC. | 512 | — | 2 |
| AS393677US | HLS - Hematogenix Laboratory Services, LLC | 512 | — | 2 |
| AS15115US | PREMIERE-NETWORKS-15115 - Premiere Networks | 512 | — | 1 |
| AS399400US | INSPIRO-RELIA-US - Inspiro Relia US, Inc. | 512 | — | 2 |
| AS7133US | NYPP-AS - New York Independent System Operator, Inc. | 512 | 1 | 3 |
| AS40178US | OCEANBLUE-CLOUD-US - OCEANBLUE CLOUD, INC. | 512 | — | 2 |