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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,144 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.1M | 3,642 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,945 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,376 |
| AAMU-INTERNET - Alabama A&M University |
| 2K |
| — |
| 5 |
| AS3060US | SC-YORKTECH - York Technical College | 2K | — | 1 |
| AS1643US | BROC-11-ASN - Brockway Television Inc. | 2K | — | 1 |
| AS14987US | RETHEMHOSTING - Rethem Hosting LLC | 2K | 65.5K | 6 |
| AS16818US | SYNTAX-NJ-AZ - Syntax systems Ltd LLC. | 2K | — | 5 |
| AS46838US | POLB-1 - Port of Long Beach | 2K | — | 5 |
| AS14803US | ASHEREDC - HERE North America LLC | 2K | — | 1 |
| AS401353US | BOOSTRUN - Boost Run LLC | 2K | — | 7 |
| AS394660US | NORVADO-NE - Chequamegon Communications Cooperative, Inc. | 2K | — | 2 |
| AS26128US | AS-360WISP - 360 Communications, LLC | 2K | — | 8 |
| AS399352US | DRILLINGINFO-SEATTLE - Drilling Info Inc. | 2K | — | 1 |
| AS16750US | ECPI - Electronic Corporate Pages, Inc | 2K | — | 1 |
| AS395571US | TYR-VLT-110 - Tyler Vault | 2K | — | 8 |
| AS32077US | ULTISOFTASN - ULTIMATE SOFTWARE GROUP | 2K | — | 3 |
| AS10322US | ERCOT-ISO - Ercot Independent System Operations | 2K | — | 5 |
| AS36111US | BRINKS-INC-INTERNET - Brink's, Incorporated | 2K | — | 5 |
| AS22883US | CONDENAST - CondeNast Publications | 2K | — | 8 |
| AS6999US | UU-ITNNET - Interactive Telecom Network | 2K | — | 8 |
| AS40089US | BULLHORN-INC-BOSTON - Bullhorn Inc. | 2K | — | 8 |
| AS401478US | WABASH-MUTUAL-TELEPHONE - Wabash Mutual Telephone Company | 2K | 65.5K | 3 |
| AS398149US | NTS-HARLINGEN-01 - Vexus Fiber | 2K | — | 4 |
| AS40762US | NYSYS-AS1 - Nysys Wireless LLC | 2K | — | 5 |
| AS393536US | NTTDATA-RAGINGWIRE - NTT DATA AMERICAS, INC | 1.9K | — | 10 |
| AS40292US | CINTAS - Cintas Corporation | 1.8K | — | 6 |
| AS19755US | CRUISE-NETENG-ASN - Cruise LLC | 1.8K | — | 7 |
| AS394881US | EK-HOSTING - EK HOSTING INC | 1.8K | — | 4 |
| AS40399US | MASERGY-CLOUD-COMMUNICATIONS - Masergy Cloud Communications, Inc. | 1.8K | — | 7 |
| AS27549US | CAW-ASN-01 - Cloud at Work | 1.8K | — | 6 |
| AS3743US | ARCEL-2 - Cleveland Cliffs Steel LLC | 1.8K | — | 7 |
| AS53550US | AS53550 - NTT Cloud Communications US, Inc. | 1.8K | 65.5K | 5 |
| AS14976US | SMART-CITY-DNCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | 16 | 4 |
| AS14765US | NTS-SLIDELL-01 - Vexus Fiber | 1.8K | — | 3 |
| AS64289US | MACARNE - Macarne.com | 1.8K | 7.2K | 13 |
| AS11323US | GETTYIMAGES - Getty Images (Seattle), Inc. | 1.8K | — | 7 |
| AS18570US | ECHOSTAR-BROADCASTING-CORPORATION - EchoStar Broadcasting Corperation | 1.8K | — | 7 |
| AS397650US | CALIX-CENTRAL - Calix, Inc. | 1.8K | 38 | 10 |
| AS46744US | CCHNL - City and County of Honolulu | 1.8K | — | 7 |
| AS393586US | VERSCEND-TECHNOLOGIES - Verscend Technologies | 1.8K | — | 7 |
| AS202521US | NEXCESS-AMS01 Liquid Web B.V. | 1.8K | 256 | 5 |
| AS396417US | SFDC-IT - Salesforce, Inc. | 1.8K | 1 | 5 |
| AS27424US | LFLL-ASN - Lucky Friday Labs, LLC | 1.8K | 1 | 8 |
| AS21529US | NOVVA - NOVVA INC | 1.8K | 1K | 11 |
| AS394229US | TELOGIKS - Juxto, Inc. | 1.8K | 1 | 8 |
| AS27225US | TBI-ASN-1 - TrueBlue, Inc. | 1.8K | — | 3 |
| AS46943US | GLBIX-STLSMO-WPDC - Global Internet eXchange | 1.8K | — | 6 |
| AS394973US | AARKI - Aarki, Inc. | 1.8K | — | 7 |
| AS14467US | KUA-NET - KUA.net | 1.8K | — | 4 |