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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 117.8K |
| 256 |
| 188 |
| AS36327US | VINAKOM - VINAKOM COMMUNICATIONS | 116.7K | 65.5K | 22 |
| AS400427US | IQ-FIBER - IQ Fiber | 116.7K | 73.7K | 34 |
| AS11878US | TZULO - tzulo, inc. | 116K | 130.6K | 229 |
| AS25789US | LMU - Loyola Marymount University | 115.7K | — | 6 |
| AS26827US | EPBTELECOM - EPB Fiber Optics | 115.5K | 65.5K | 22 |
| AS12007US | RAYASN - Raytheon Company | 115.5K | — | 58 |
| AS5760US | BIDDEFORD1 - Biddeford Internet Corp | 115.2K | 65.5K | 21 |
| AS32133US | AS-TING-BACKBONE - Ting Fiber Inc. | 115.2K | 84K | 63 |
| AS160US | U-CHICAGO-AS - The University of Chicago | 115.2K | 2 | 8 |
| AS36368US | OBERLIN-COLLEGE - Oberlin College | 114.9K | — | 4 |
| AS19070US | EIUNET - Eastern Illinois University | 114.7K | — | 3 |
| AS402584US | MSUDENVER - Metropolitan | 114.7K | — | 3 |
| AS40102US | AS-MONTGOMERY-COLLEGE-AS1 - Montgomery College | 114.7K | — | 4 |
| AS54103US | MODMC-54103-AS - MOD Mission Critical, LLC | 114.7K | 5 | 441 |
| AS47007US | AS4-COLOAM - Colocation America Corporation | 113.9K | 1 | 410 |
| AS3762US | INSTINET-AS - Instinet | 113.7K | — | 69 |
| AS18558US | NETBLK-RCOEK - Riverside County Office of Education | 112.9K | 65.5K | 142 |
| AS5009US | EATEL - REV | 112.9K | 65.5K | 18 |
| AS4581US | SOCKET - Socket Holdings Corporation | 112.6K | — | 51 |
| AS2648US | NOAA-BOULDER - National Oceanic and Atmospheric Administration | 112.4K | 260 | 18 |
| AS23410US | NET-NASSAU-BOCES - Nassau County BOCES | 112.4K | — | 312 |
| AS19679US | DROPBOX - Dropbox, Inc. | 112.1K | 345 | 65 |
| AS11500US | MSOE-INTERNET - Milwaukee School of Engineering | 111.4K | — | 8 |
| AS53508US | CABLELYNX - Cablelynx | 110.8K | — | 109 |
| AS13614US | ALLWEST - All West Communications, Inc. | 110.8K | 65.5K | 33 |
| AS398754US | COASTCONNECT-01 - CoastConnect LLC | 110.6K | — | 107 |
| AS32097US | WII - WholeSale Internet, Inc. | 109.8K | 65.5K | 53 |
| AS14361US | HOPONE-GLOBAL - HopOne Internet Corporation | 109.8K | 76 | 113 |
| AS18712US | EVERFAST-KC - Everfast Fiber Networks LLC | 109.8K | 65.5K | 24 |
| AS10310US | YAHOO-1 - Yahoo Holdings Inc. | 109.8K | 397.3K | 111 |
| AS3833US | WYOMING - wyoming.com | 109.6K | 65.5K | 226 |
| AS5307US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 109.1K | 1 | 57 |
| AS11123US | UIA - Ultimate Internet Access, Inc | 108.8K | 4.1K | 64 |
| AS11659US | KUMC - University of Kansas Medical Center | 108.3K | — | 8 |
| AS29848US | WCU - West Chester University of Pennsylvania | 108K | 131.1K | 9 |
| AS7227US | KPMGL-AS - KPMG LLP | 108K | — | 43 |
| AS6501US | SOUTHERNET - The Southern Company | 107.5K | — | 26 |
| AS26072US | FIRSTENERGY - FirstEnergy Corp. | 107K | 577 | 31 |
| AS10439US | CARINET - CariNet, Inc. | 106.8K | 65.5K | 7 |
| AS20105US | URICHMOND - University of Richmond | 106.5K | — | 7 |
| AS18759US | SAV-AS - Georgia Southern University | 106.5K | — | 3 |
| AS33692US | MACALE - Macalester College | 106.5K | — | 8 |
| AS32043US | NEO-FIBER-01 - NeoFiber Communications inc. | 106.5K | — | 248 |
| AS6984US | NYNEX-AS - Verizon Business | 106.2K | 273 | 92 |
| AS26585US | SIAC-SFTI - Securities Industry Automation Corporation | 105.5K | — | 107 |
| AS397423US | TIER-NET - Tier.Net Technologies LLC | 105K | 267.1K | 382 |