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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| WORLDORG - World Organization |
| 512 |
| — |
| 1 |
| AS397873US | AS-SOLADRIVE - SolaDrive | 512 | — | 2 |
| AS395402US | NAR-19 - National Association of Realtors | 512 | — | 2 |
| AS395369US | HPSAS001 - HPS Investment Partners, LLC | 512 | — | 2 |
| AS22696US | CBI-AS - CB&I | 512 | — | 2 |
| AS399987US | TACOMA-PIERCE-COUNTY-HEALTH-DEPARTMENT - Tacoma-Pierce County Health Department | 512 | — | 2 |
| AS396533US | NYT-CP - The New York Times Company | 512 | — | 1 |
| AS39985US | RACKROOM-SHOES - Rack Room Shoes | 512 | — | 2 |
| AS1632US | SONIC-HEALTHCARE-USA-HNY - SONIC HEALTHCARE USA, INC. | 512 | — | 2 |
| AS33436US | CODETINI - Codetini LLC | 512 | 128 | 4 |
| AS400961US | LOGISTIVIEW-CLOUD-01 - LogistiVIEW, Inc. | 512 | — | 2 |
| AS55295US | NEWDAYASN - New Day Broadband One LLC | 512 | — | 1 |
| AS11553US | MANNAWEB - Mannatech INC. | 512 | — | 2 |
| AS395072US | ODBM-3000 - Our Daily Bread Ministries | 512 | — | 2 |
| AS36765US | WLKY-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS395203US | SCHOOLCRAFTDEVELOPMENTAUTHORITY - Schoolcraft Development Authority, Inc | 512 | — | 1 |
| AS19452US | OAKTREECAP-COM - Oaktree Capital Management, LP | 512 | — | 2 |
| AS40471US | INCYTECORP - Incyte Corporation | 512 | — | 2 |
| AS36762US | WMOR-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS397302US | NEDERLANDER-WEST-COAST - J. Ned, Inc. | 512 | — | 2 |
| AS54277US | SSG - SUPPORT SERVICES GROUP, INC. | 512 | — | 2 |
| AS19961US | STARGAS-NET-1 - Star Gas Partners, LP | 512 | — | 2 |
| AS12193US | IMAGINE-COMMUNICATIONS - IMAGINE COMMUNICATIONS | 512 | — | 2 |
| AS398538US | HERITAGE-BROADBAND-LLC - HERITAGE BROADBAND, LLC | 512 | — | 2 |
| AS401807US | INTUITY - Intuity Consultants, Inc. | 512 | — | 2 |
| AS210266US | PHOENIXNAP-PL PHOENIX NAP, LLC. | 512 | 257 | 4 |
| AS46140US | CSI - CAMP SYSTEMS INTERNATIONAL | 512 | — | 2 |
| AS4985US | PGWORKS - PHILADELPHIA GAS WORKS | 512 | — | 2 |
| AS64257US | TXGL1 - trueEX LLC | 512 | — | 2 |
| AS39239US | PHOENIXNAP-ES PHOENIX NAP, LLC. | 512 | 257 | 4 |
| AS153US | CTNOSC-ASN-153 - Headquarters, USAISC | 512 | — | 2 |
| AS218751US | Fontaine Fontaine, LLC | 512 | — | 2 |
| AS62959US | INNOVSYS-1 - Innovative Systems LLC | 512 | — | 2 |
| AS36595US | PPI - Payment Processing Inc. | 512 | — | 2 |
| AS397088US | MACC-TECHMGM - Montgomery Area Chamber of Commerce | 512 | 1 | 3 |
| AS13747US | DMIC-ASN1 - DONEGAL MUTUAL INSURANCE | 512 | — | 2 |
| AS396224US | NSF-INTERNATIONAL - NSF International | 512 | — | 2 |
| AS29884US | EQUINIX-EC-DA - Equinix, Inc. | 512 | 1 | 3 |
| AS395078US | MHALINK-01 - Massachusetts Health & Hospital Association, Inc. | 512 | — | 2 |
| AS398005US | TGNA-WATN - TEGNA Inc. | 512 | — | 2 |
| AS26276US | TIMKEN-USA - The Timken Company | 512 | — | 2 |
| AS23447US | NETTECH-ASN01 - NetTech, LLC | 512 | — | 2 |
| AS54986US | FLOWERS - 1-800-Flowers.com, Inc. | 512 | — | 2 |
| AS40016US | MESIROW - MESIROW FINANCIAL HOLDINGS, INC. | 512 | — | 2 |
| AS22444US | USCOLD - United States Cold Storage Inc. | 512 | — | 2 |
| AS54185US | PRMI-CORP-AS01 - PRIMARY RESIDENTIAL MORTGAGE | 512 | — | 2 |
| AS26148US | CSMPR - Cooperativa de Seguros Multiples de Puerto Rico | 512 | — | 2 |