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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.8K |
| 65.5K |
| 5 |
| AS401215US | MPS-MP - MITCHELL PLASTICS | 1.8K | — | 7 |
| AS32222US | ACCESSLINE-COM-2000 - AccessLine Communications Corp. | 1.8K | — | 7 |
| AS7332US | LIGHTBOUND-AS - LightBound, LLC | 1.8K | 65.5K | 8 |
| AS30120US | SGNE-AS - Sempra Global | 1.8K | — | 5 |
| AS36640US | SLASCONSULTING - SLAS Consulting, LLC | 1.8K | — | 3 |
| AS46206US | AS-SANFORDHEALTH - Sanford Health | 1.8K | — | 7 |
| AS14895US | LAWSON-SOFTWARE - Lawson Software | 1.8K | — | 3 |
| AS400686US | WWEST-CORE-GRWA-01 - WAHKIAKUM WEST TELEVISION, INC. | 1.8K | 65.6K | 10 |
| AS53930US | SABA-AS-001 - Saba Software Inc. | 1.8K | — | 7 |
| AS393936US | TULSA-COUNTY - Metropolitan Tulsa Electronic Network | 1.8K | — | 5 |
| AS395723US | LIGHTSPEEDHOSTING1 - LightSpeed Hosting | 1.8K | 4.1K | 5 |
| AS11176US | SMART-CITY-MNCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | — | 3 |
| AS21758US | MODINE-MANUFACTURING - Modine Manufacturing Company | 1.8K | — | 6 |
| AS2143US | AS2143 - National Aeronautics and Space Administration | 1.8K | — | 3 |
| AS25670US | THINKCSC - thinkCSC | 1.8K | 34 | 11 |
| AS14791US | NTS-DENISON-01 - Vexus Fiber | 1.8K | — | 3 |
| AS53561US | FASTER-CAJUN-LLC - Faster Cajun Networks | 1.8K | — | 5 |
| AS22002US | SYSTEMS-SOLUTIONS-OF-PADUCAH-INC - Systems Solutions of Paducah, Inc. | 1.8K | — | 7 |
| AS20406US | BRASLINK - Braslink Network Inc | 1.8K | — | 4 |
| AS396839US | TEKTONIC-PHL - TekTonic | 1.8K | 1 | 6 |
| AS36433US | AS-BCLLP - Bryan Cave LLP | 1.8K | — | 7 |
| AS395898US | TND - TND, LLC | 1.8K | 4 | 11 |
| AS22481US | AVSGIA-AS - Encore Group (USA) LLC | 1.8K | — | 7 |
| AS394898US | HCDL-PITTSBURGH-DATA-CENTER - H5 Data Centers | 1.8K | 256 | 8 |
| AS18959US | RP-368-18959 - Radia Inc., PS | 1.8K | — | 4 |
| AS40169US | USABROAD - USABROAD INC. | 1.8K | — | 7 |
| AS396973US | DHS-39H - Department of Homeland Security | 1.8K | 2 | 9 |
| AS32342US | GENEXSERVICES - Genex Services Inc | 1.8K | — | 6 |
| AS400436US | KCNA-ASN-01 - Kentucky Communications Network Authority (KCNA) | 1.8K | — | 4 |
| AS19054US | NATHNETWORK-ASN - Nath Network & Telecom Inc | 1.8K | 2 | 9 |
| AS19367US | CAROUSEL-INDUSTRIES - Carousel Industries of North America, LLC | 1.8K | — | 7 |
| AS40187US | GIGSTREEM-WARP2BIZ - GiGstreem | 1.8K | — | 7 |
| AS4543US | TIMESNET - The New York Times Company | 1.8K | — | 7 |
| AS10325US | INGRAMMICRO - Ingram Micro Inc. | 1.8K | — | 4 |
| AS36221US | ESOSOFT - Esosoft Corporation | 1.8K | 8 | 15 |
| AS399510US | GEODIS-AMS - Geodis Logistics LLC | 1.8K | — | 7 |
| AS30398US | AS-ADS - Automated Data Systems | 1.8K | — | 4 |
| AS14011US | DESIGNDATA - Design Data Systems, Inc. | 1.8K | — | 6 |
| AS399870US | BYNARIUM-BACKBONE - BYNARIUM LLC | 1.8K | 773 | 15 |
| AS36742US | DATA-INTENSITY - Data Intensity, LLC | 1.8K | — | 7 |
| AS46502US | SYNCWAVE-499 - SyncWave, LLC | 1.8K | — | 3 |
| AS20019US | PEC-TEL - Parwan Electronics Corporation | 1.8K | — | 7 |
| AS10694US | MONST-2AS - Monster Worldwide, Inc. | 1.8K | — | 5 |
| AS53332US | C2HOSTING-01 - C2Hosting, LLC | 1.8K | — | 3 |
| AS14931US | STA-AS - The St. Paul Travelers Companies, Inc. | 1.8K | — | 6 |
| AS393499US | ONLINE-TECH-LLC3 - Otava, LLC | 1.8K | — | 4 |