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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 | 24,346 |
| 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 |
| 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 | 4,357 |
| 512 |
| — |
| 2 |
| AS35901US | AVTEX-INC-ASN - Avtex, Inc. | 512 | — | 2 |
| AS394176US | I-NET-USA - I-NET USA, LLC | 512 | — | 1 |
| AS26246US | CNHIN-NAFTA - CNH INDUSTRIAL AMERICA LLC | 512 | — | 2 |
| AS46789US | LINEA-MEX - Linea Mex, LLC. | 512 | 16 | 3 |
| AS19913US | AS-WPNP - W-PNP, Inc. | 512 | — | 2 |
| AS62691US | ACA-ISG - AMERICAN CREDIT ACCEPTANCE | 512 | — | 2 |
| AS53369US | COUNTY-OF-ALBEMARLE - County of Albemarle | 512 | — | 2 |
| AS393512US | AGC-NW - AGC Networks Inc | 512 | — | 2 |
| AS17085US | AS-STOPLLC - SATELLITE TRACKING OF PEOPLE | 512 | — | 1 |
| AS35907US | NANTHEALTH - NaviNet Inc. | 512 | — | 2 |
| AS30423US | AMEDI-3-ASN1 - Amedisys, Inc. | 512 | — | 2 |
| AS395123US | CENTRACOM - CENTRACOM INTERACTIVE | 512 | 1 | 3 |
| AS40117US | YEXT - Yext, Inc. | 512 | — | 2 |
| AS19511US | ELECTROLUX-NA - Electrolux Home Products, Inc. | 512 | — | 2 |
| AS30438US | RESOLVE-BGP01 - Resolve I.T. | 512 | 1 | 3 |
| AS32766US | FIDELITY-BANK - Fidelity Bank, N.A. | 512 | — | 2 |
| AS401366US | VOX-FLOW - Vox Flow LLC | 512 | 1 | 3 |
| AS11121US | FIRSTDATACORP-DB - Fiserv Solutions, LLC | 512 | — | 2 |
| AS396933US | TELWARE-EAST01 - TelWare Corporation | 512 | — | 2 |
| AS63340US | SPA-2001NETWORK - Systems Planning and Analysis, Inc. | 512 | — | 2 |
| AS46384US | WICONNECT-WIRELESS - WiConnect Wireless LLC | 512 | — | 2 |
| AS17174US | WALMART-INDIA - Wal-Mart Stores, Inc. | 512 | — | 2 |
| AS393616US | ISS-GOVERNANCE - ISS Governance | 512 | — | 2 |
| AS398323US | PSBOS-1 - Provide Support LLC | 512 | — | 2 |
| AS399967US | HOMESERVEUSA-BGP-ASN - HomeServe USA Corp | 512 | — | 2 |
| AS46173US | OMNIS-2 - Omnis Network, LLC | 512 | 2 | 4 |
| AS398219US | INMAR-DC2 - Inmar, Inc. | 512 | — | 1 |
| AS12053US | TRUMARK-FINANCIAL - TruMark Financial Credit Union | 512 | — | 2 |
| AS399330US | CASCADE-INET-01 - Cascade Corporation | 512 | — | 2 |
| AS12244US | SECURITAS ELECTRONIC SECURITY - SUPREME - Securitas Electronic Security, Inc. | 512 | — | 2 |
| AS16909US | IMPUT - imput | 512 | 6 | 8 |
| AS395078US | MHALINK-01 - Massachusetts Health & Hospital Association, Inc. | 512 | — | 2 |
| AS27291US | CDS - Century Data Service, Inc | 512 | — | 2 |
| AS36571US | WLWT-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS401598US | PANCHAL-ASN-01 - Panchal LLC | 512 | 256 | 3 |
| AS400964US | COHC - College of the Holy Cross | 512 | — | 2 |
| AS15126US | SMAI - Suzuki Marine USA, LLC | 512 | — | 2 |
| AS202540US | CDSTEPHENS Christopher Stephens | 512 | 6 | 7 |
| AS395397US | AMENTUM-ASN - Amentum Services, Inc. | 512 | — | 1 |
| AS1219US | NCUBE-OREGON-AS - Oracle Corporation | 512 | 1 | 3 |
| AS27520US | TECHOGS - Techogs llc | 512 | 256 | 3 |
| AS53393US | LGCNS-AS2 - LG CNS America Inc. | 512 | — | 2 |
| AS14932US | ISC - C1CX | 512 | — | 2 |
| AS26532US | MACLEAN-FOGG - Mac Lean-Fogg Company | 512 | — | 2 |
| AS62021US | LATISYS-DENVER Zayo Group, LLC | 512 | — | 2 |
| AS398076US | OVERTURE-LIFE - Overture Life, Inc. | 512 | 11 | 12 |