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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. | 218.1M | 24,718 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 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.
32,222 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 | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 997 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 256 |
| — |
| 1 |
| AS12162US | DATA-DISTIBUTORS-AS - DATA DISTRIBUTORS | 256 | — | 1 |
| AS32497US | INTELLIPOP-ATL - Intellipop, LLC | 256 | — | 1 |
| AS14785US | BCBSVT-DOT8-ASN - BCBSVT | 256 | — | 1 |
| AS396333US | CYWEST-COMMUNICATIONS - Cywest Communications, Inc. | 256 | — | 1 |
| AS40491US | IQVIA-MORRISVILLE - IQVIA Holdings Inc | 256 | — | 1 |
| AS23103US | WD-AS1 - Western Digitech, Inc. | 256 | — | 1 |
| AS399766US | LOOK-TO-THE-RIGHT - Look To The Right, LLC | 256 | — | 1 |
| AS22014US | INNOVATION-NETWORK - City of Las Vegas | 256 | 256 | 2 |
| AS26045US | LUBBCO1 - Lubbock County | 256 | — | 1 |
| AS21639US | BCBSLA-ASN - Blue Cross Blue Shield Of Louisiana | 264 | — | 2 |
| AS401494US | FUTURECONNECTNETWORK - futureConect LLC | 264 | — | 2 |
| AS1407US | QUOTEMEDIA - Quotemedia | 264 | — | 2 |
| AS32822US | TEAMUCC - C.O.P.S. Monitoring | 288 | — | 2 |
| AS395054US | CDPHP - CDPHP | 288 | — | 2 |
| AS7019US | NTTA-7019 - NTT America, Inc. | 288 | 2 | 4 |
| AS399734US | CLARIVATE-01 - Clarivate Analytics (US) LLC | 320 | — | 2 |
| AS36708US | ILSHEALTH-01 - ILS Health | 320 | — | 2 |
| AS394558US | SUNOVION - Sumitomo Pharma America, Inc. | 384 | — | 2 |
| AS32831US | RPCI-AS - Roswell Park Cancer Institute | 512 | — | 2 |
| AS397998US | TGNA-WNEP - TEGNA Inc. | 512 | — | 2 |
| AS30107US | JSD2 - West Ada School District | 512 | 256 | 3 |
| AS30613US | CME-TESTLAB - Chicago Mercantile Exchange | 512 | — | 1 |
| AS402056US | WIDEWIRED - WideWired | 512 | 1 | 3 |
| AS19412US | HASSER-ENTERPRISES-LLC - Hasser Enterprises LLC | 512 | — | 2 |
| AS55190US | BLUEFIN-BB - Bluefin Payment Systems LLC | 512 | — | 2 |
| AS394032US | CD-MKE-AS1 - Capital Data Inc | 512 | — | 2 |
| AS15033US | XPRES-PDX - XPRESSBET INC. | 512 | — | 2 |
| AS26543US | IBM-CMS-RPL - IBM | 512 | — | 1 |
| AS1882US | STUPI STUPI LLC | 512 | — | 2 |
| AS397498US | CCSD-ASN - Cherokee County School District | 512 | — | 2 |
| AS396307US | SOUTHERNIMPERIAL - Southern Imperial Inc. | 512 | — | 2 |
| AS17391US | CPWR-DTW-ASN01 - BMC Software, Inc. | 512 | — | 2 |
| AS36767US | WMUR-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS53940US | TMH-14-HQ - Tallahassee Memorial HealthCare Inc. | 512 | — | 2 |
| AS393681US | ALL-BLUE-SOLUTIONS-INC - All Blue Solutions Inc. | 512 | 1 | 3 |
| AS25763US | BHSG-ASN001 - Beacon Hill Staffing Group, LLC | 512 | — | 2 |
| AS397352US | MEDISYS-36 - Medisys Health Network, Inc. | 512 | — | 2 |
| AS214505US | NUCLEARFALLOUT-FRA Nuclearfallout Enterprises, Inc. | 512 | 4.1K | 3 |
| AS20145US | FCS - FLORIDA CANCER SPECIALISTS, P.L. | 512 | — | 2 |
| AS20103US | VALMONT-INDUSTRIES - Valmont Industries | 512 | — | 2 |
| AS36079US | RESULTS - Results | 512 | — | 2 |
| AS64283US | FLORIDAPOLY - Florida Polytechnic University | 512 | — | 2 |
| AS11865US | EPE-ASN-BGP-1 - El Paso Electric | 512 | — | 2 |
| AS395813US | MICHIGAN-CENTRAL - Michigan Central Innovation District, LLC | 512 | — | 2 |
| AS40173US | CHG-AS-01 - Circa Resort & Casino | 512 | — | 1 |
| AS15262US | TSYS-NDC-COPORATE-INTERNET - Global Payments Inc. | 512 | — | 2 |