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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. | 218.2M | 25,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,306 |
| 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.
32,232 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 | 51.6M | 3,897 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,005 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 2 |
| AS30680US | FISCOM-COLO5-JAX-FL - Fidelity National Information Services, Inc. | 512 | — | 2 |
| AS27208US | DISCOVERY-ENERGY-LLC-01 - Discovery Energy, LLC | 512 | — | 2 |
| AS53489US | TGNA-WBIR - TEGNA Inc. | 512 | — | 2 |
| AS394171US | ONPOINTCCU - OnPoint Community Credit Union | 512 | — | 2 |
| AS10985US | CURTIS-ASNUM - Curtis Instruments, Inc. | 512 | — | 2 |
| AS54820US | DN-TX - Diebold Nixdorf, Incorporated | 512 | — | 2 |
| AS209177US | ArnoldPorter Arnold & Porter Kaye Scholer LLP | 512 | — | 1 |
| AS1437US | VISONEX-LLC - Visonex LLC | 512 | — | 2 |
| AS12209US | GIROSOL - Girosol, Corp. | 512 | — | 2 |
| AS18952US | BVR-AS - Big Valley of Pomo Indians of the Big Valley Rancheria California | 512 | — | 2 |
| AS36244US | SVEC - Shenandoah Valley Electric Cooperative | 512 | — | 1 |
| AS36551US | COMPASSION-INTL-GMC1 - Compassion International, Inc. | 512 | — | 2 |
| AS40267US | PCTI - Passaic County Technical Institute | 512 | 16 | 3 |
| AS395740US | CHOCTAW-NATION-OF-OKLAHOMA - Choctaw Nation of Oklahoma | 512 | — | 2 |
| AS20417US | STABILISERVERS - StabiliServers | 512 | 2 | 4 |
| AS397678US | RRIS-01 - Red Rock Information Security, LLC | 512 | — | 2 |
| AS29822US | ARCHER1 - Archer and Greiner | 512 | — | 2 |
| AS1562US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS40797US | EV-COG-01 - Easy Voice, LLC | 512 | — | 2 |
| AS63248US | USRC-AS63248 - U.S. RENAL CARE, INC. | 512 | — | 2 |
| AS401191US | BSOSL-ASN-01 - Blue Star Operations Services LLC | 512 | — | 1 |
| AS401617US | VIETTEL - Viettell | 512 | 8.2K | 4 |
| AS7034US | PHIREPHLY-DESIGN - PhirePhly Design | 512 | 2 | 4 |
| AS7820US | TOWERFCU-AS - Tower Federal Credit Union | 512 | — | 2 |
| AS400393US | DIGITAL-EXAMPLE - Digital Example LLC | 512 | 256 | 3 |
| AS62540US | DRAKE-AS - Drake Holdings LLC | 512 | — | 2 |
| AS55046US | NGS-SDC - National Government Services, Inc. | 512 | — | 2 |
| AS396213US | USCUPSTATE - USC Upstate | 512 | — | 2 |
| AS21912US | PACIFICTERRACE-GUEST-INTERNET - Pacific Terrace Hotel | 512 | — | 1 |
| AS32889US | SOUTHWESTERN-WIRELESS - Southwestern Wireless, Inc. | 512 | — | 2 |
| AS394784US | MEEI-AS - Massachusetts Eye and Ear Infirmary | 512 | — | 2 |
| AS64210US | ALTERA - Altera Corporation | 512 | — | 2 |
| AS13510US | BAYSTATEHEALTH - Baystate Health, Inc. | 512 | — | 2 |
| AS19860US | OPTIV-US-AS1 - OPTIVER US LLC | 512 | — | 2 |
| AS30704US | WC-1162 - WellSky Corporation | 512 | — | 2 |
| AS62683US | PTC - PREFIL TEC, INC | 512 | — | 2 |
| AS399417US | VORTEXOKMAIN - VortexOK.net LLC | 512 | 65.5K | 3 |
| AS399140US | SINGAPORE-DC - Red Hat, Inc. | 512 | 1 | 3 |
| AS398908US | SMYTHNET - Smyth Technology Group, Incorporated | 512 | — | 1 |
| AS40600US | STRIDEBANK-ASN - Stride | 512 | — | 2 |
| AS97US | NTTA-97 - NTT America, Inc. | 512 | — | 2 |
| AS400125US | AUSTIN-ARENA-COMPANY - AUSTIN ARENA COMPANY, LLC | 512 | — | 2 |
| AS395061US | SUNMARK - Sunmark Credit Union | 512 | — | 2 |
| AS40877US | XULA - Xavier University of Louisiana | 512 | — | 2 |
| AS19622US | GHI301PENOBSCOT - Genomic Health, Inc. | 512 | — | 2 |
| AS54102US | FABFIBERNET - Fabulous Fiber LLC | 512 | 4.1K | 2 |