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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS397673US | AHELIOTECH - AHELIOTECH | — | — | 0 |
| AS395329US | KBRANJ - KBRA | — | — | 0 |
| AS397101US | KOERBER-PHARMA-US - Korber Pharma, Inc. | — | — | 0 |
| AS394929US | NAES-ASN - NAES Corp | — | — | 0 |
| AS394854US | TOST-ASN - Toast, Inc. | — | — | 0 |
| AS40789US | TCLOUD - TCLOUD NETWORK, INC | — | — | 0 |
| AS47892US | FTEN-EU-ASN FTEN LLC | — | — | 0 |
| AS53530US | MYRON-ASN - Myron Corp. | — | — | 0 |
| AS40079US | NFP-INSURANCE-SERVICES-TEXAS - NATIONAL FINANCIAL PARTNERS CORP. | — | — | 0 |
| AS400105US | SUN-FIBER - SUN FIBER, LLC | — | — | 0 |
| AS402474US | LMESSER-LABS - Zachary | — | 256 | 1 |
| AS36624US | GGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS46421US | AMGHMTC-DFW - Air Medical Group Holdings | — | — | 0 |
| AS36584US | ARCHEO-FUTURUS - Archeo Futurus, Inc. | — | — | 0 |
| AS46101US | IHS-ASN-27 - UnityPoint Health | — | — | 0 |
| AS46092US | RAI - RESOURCE AMERICA | — | — | 0 |
| AS53491US | XENOPSIMEDIA - XenoPsi, LLC | — | — | 0 |
| AS46278US | USWIRED-CLOUD-HOSTING - USWired Incorporated | — | — | 0 |
| AS43308US | Michael-Kehoe Michael Kehoe | — | — | 0 |
| AS393433US | ACPNY - AdvantageCare Physicians, P.C. | — | — | 0 |
| AS218159US | PROTIUM-NETWORK Protium Network LLC | — | — | 0 |
| AS393314US | ORACLE-BYOASN - Oracle Corporation | — | — | 0 |
| AS212364US | THEO-AS Theophilus Bassaw-Koomson | — | — | 0 |
| AS212149US | Hammynet Hammy Web Services LLC | — | — | 0 |
| AS214220US | BETAWHALE betawhale, Inc | — | — | 0 |
| AS40406US | ACXIOM-LR - Acxiom LLC | — | — | 0 |
| AS47103US | ZNL-15-47103 - GIGAPATH LLC | — | — | 0 |
| AS399202US | VIPER-ASN01 - Vasuki Systems Inc | — | — | 0 |
| AS399162US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS398935US | AS-NEWVM-1 - NewVM Internet Services LLC | — | — | 0 |
| AS399015US | COR-FO - City of Rowlett | — | — | 0 |
| AS401096US | AS - EchoSphere Tech LLC | — | — | 0 |
| AS401093US | SARAPLUS-AZURE-02 - SARA Plus, LLC | — | — | 0 |
| AS400746US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS399446US | THEWORLDIX-ASN-1 - TheWorldIX | — | — | 0 |
| AS400802US | SQUIRREL-NET-01 - Squirrel Logic LLC | — | — | 0 |
| AS4343US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS46968US | SOUTHERNSEMINARY - Southern Baptist Theological Seminary | — | — | 0 |
| AS47033US | CANTON-DC - MTD Products, Inc | — | — | 0 |
| AS46703US | SOFTLAYER-SEA01 - IBM Cloud | — | — | 0 |
| AS46608US | RENAISSANCE-INVESTMENT-MANAGEMENT - Renaissance Investment Management, Inc. | — | — | 0 |
| AS46465US | WBH-46465 - William Beaumont Hospital | — | — | 0 |
| AS46836US | SUNGARDAS-46836 - BroadbandONE, LLC | — | — | 0 |
| AS53921US | TTCLA - The Telephone Connection of Los Angeles, Inc. | — | — | 0 |
| AS53637US | BASS3 - Signature Aviation USA, LLC | — | — | 0 |
| AS53378US | MINDBODYONLINE - MindBody, Inc. | — | — | 0 |