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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS30492US | INFOB-30492 - Infobunker, L.L.C. | — | — | 0 |
| AS30653US | AS30653 - Crown Castle Fiber LLC | — | — | 0 |
| AS30665US | JACKHENRY-5 - Jack Henry & Associates, Inc. | — | — | 0 |
| AS31855US | HPINC - HP Inc. | — | — | 0 |
| AS31979US | TERADYNE-BOSTON - Teradyne, Inc. | — | — | 0 |
| AS32019US | ADACORE - Ada Core Technologies, Inc. | — | — | 0 |
| AS32065US | VORTECH - Frontline Communications | — | — | 0 |
| AS32105US | CLOUD-SYNCINC-4 - Cloud Sync Inc | — | — | 0 |
| AS32185US | TRCOFMD - Transplant Resource Center of Maryland, Inc. | — | — | 0 |
| AS32260US | ASN-HCPI - Healthpeak Properties, Inc. | — | — | 0 |
| AS32333US | FFVA - Florida Fruit & Vegetable Association | — | — | 0 |
| AS32351US | HAMPTON-PRODUCT - Hampton Product | — | — | 0 |
| AS32394US | G-BAR-LIMITED-PARTNERSHIP - G-Bar Limited Partnership | — | — | 0 |
| AS32436US | AS32436 - Sheridan Radiology Management Services, Inc. | — | — | 0 |
| AS32527US | VARIOUS - FriendFinder Networks Inc | — | — | 0 |
| AS32538US | KOMATUSU-AMERICA-CORPORATION - Komatsu America Corporation | — | — | 0 |
| AS32566US | ERTIUS - Ertius LLC | — | — | 0 |
| AS32573US | ASN-TNE-32573 - TNE Telephone | — | — | 0 |
| AS32628US | WPOZ - Z 88.3 FM | — | — | 0 |
| AS32793US | ATSG-REDICLOUD01 - XTIUM, INC. | — | — | 0 |
| AS32903US | AMC2 - Atlantic Metro Communications II, Inc. | — | — | 0 |
| AS32929US | BANTA-CORPORATION-MENASHA-WI - Banta Corporation | — | — | 0 |
| AS32931US | PEAKTERA - Peaktera | — | — | 0 |
| AS32981US | NEUSTAR-AS4 - NeuStar, Inc. | — | — | 0 |
| AS33078US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33109US | EQUINIX-CX-LA - Equinix, Inc. | — | — | 0 |
| AS33123US | INGHAM COUNTY - Ingham County | — | — | 0 |
| AS33243US | CHARTER-33243-NA - Charter Communications LLC | — | — | 0 |
| AS33279US | EMPIRIX - EMPIRIX Inc | — | — | 0 |
| AS33485US | LCCC - Lehigh Carbon Community College | — | — | 0 |
| AS33495US | FCIX-RS - Fremont Cabal Internet Exchange | — | — | 0 |
| AS33532US | VOYAGETECHAS - Big Sky Services, Inc. | — | — | 0 |
| AS33634US | CHARTER-33634-NA - Charter Communications LLC | — | — | 0 |
| AS33658US | CMCS - Comcast Cable Communications, LLC | — | — | 0 |
| AS33702US | ENTERHOST - Enterhost | — | — | 0 |
| AS33727US | SUMOFIBER-BOZEMAN - Sumofiber | — | — | 0 |
| AS35919US | CTS - CTS Comp Tech Services | — | — | 0 |
| AS35954US | ULT-9-OMNITRACS - Roadnet Technologies, Inc. | — | — | 0 |
| AS35977US | QPASS-1 - Amdocs Inc. | — | — | 0 |
| AS36005US | HPINC - HP Inc. | — | — | 0 |
| AS36089US | OPENX-AS1 - OPENX TECHNOLOGIES, INC. | — | — | 0 |
| AS36129US | YAHOO-MAVEN - Yahoo Holdings Inc. | — | — | 0 |
| AS36233US | CH-ASN - Priority Management Group, Inc. | — | — | 0 |
| AS36278US | KOHLBERG-PAO - Kohlberg & Co., L.L.C. | — | — | 0 |
| AS36289US | VALORCHRISTIANHIGHSCHOOL-01 - Valor Christian High School | — | — | 0 |
| AS36314US | CELL-SIGNALING-TECHNOLOGY - Cell Signaling Technology, Inc. | — | — | 0 |