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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.3K |
| — |
| 5 |
| AS46253US | SUGARSYNC - IPVanish, Inc. | 1.3K | — | 5 |
| AS17043US | AERIS-SJC-BGPNET - Aeris Communications, Inc. | 1.3K | — | 5 |
| AS53467US | SRH - Skagit Regional Health | 1.3K | — | 3 |
| AS399675US | GIGALINX - GigaLinx Communications LLC. | 1.3K | 65.5K | 3 |
| AS19577US | CASTRO-TELECOM - CASTRO TELECOM LLC | 1.3K | — | 2 |
| AS55185US | GWLT-ORL01 - Gainwell Technologies LLC | 1.3K | — | 5 |
| AS398728US | TERAVITY-AS - Teravity Networks | 1.3K | — | 2 |
| AS46634US | NET10-NET - Net10 Internet Services, LLC | 1.3K | — | 5 |
| AS63027US | LANICOM-NET - Lanicom, LLC | 1.3K | 4.1K | 6 |
| AS4366US | GE-AMC - General Electric Company | 1.3K | — | 5 |
| AS54006US | RANCH-WIRELESS-INC - VTX Communications LLC | 1.3K | — | 4 |
| AS3529US | DNIC-AS-03529 - United States Department of Defense (DoD) | 1.3K | — | 5 |
| AS36154US | WURESTON - THE WESTERN UNION COMPANY | 1.3K | — | 3 |
| AS22414US | CRAIGS-NET-1 - Craigslist, Inc. | 1.3K | 17 | 4 |
| AS402030US | LEFTSHIFT - Left Shift Logical, LLC | 1.3K | 256 | 3 |
| AS36360US | ZINGOMEDIA - Zingo Media Group LLC | 1.3K | — | 5 |
| AS22188US | SOLANTIC - Solantic Corporation | 1.3K | 65.5K | 6 |
| AS30664US | ELEMENT - Element Vehicle Management Services | 1.3K | — | 5 |
| AS32924US | GREENWAY-HEALTH - Greenway Health, LLC | 1.3K | — | 4 |
| AS1326US | ANSBB-ASNNET-1 - Verizon Business | 1.3K | — | 5 |
| AS11940US | DIRECTSCOM - Direct Supply, Inc. | 1.3K | — | 4 |
| AS31867US | SCHWARTZNET - Schwartz Networks Limited Liability Company | 1.3K | 4.1K | 27 |
| AS393247US | PARKVIEW-HEALTH - Parkview Hospital | 1.3K | — | 2 |
| AS33683US | UIWTX - University of the Incarnate Word | 1.3K | — | 2 |
| AS954US | TS-1316-954 - TMTG | 1.3K | — | 5 |
| AS14676US | REGUS - Regus Business Centre, LLC | 1.3K | — | 5 |
| AS397686US | C1CX-TX - C1CX | 1.3K | — | 4 |
| AS399145US | SUMO-SC - Sumo Capital LLC | 1.3K | — | 5 |
| AS20443US | VERGETEL-NETWORKS - VergeTel Networks LLC | 1.3K | 256 | 3 |
| AS7915US | DAYTONA-STATE-COLLEGE - Daytona State College Inc | 1.3K | — | 5 |
| AS393351US | AMERISBANK - Ameris Bank | 1.3K | — | 5 |
| AS20285US | INFINITE-CAMPUS-MN - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS54420US | COCC-ISP1 - COCC | 1.3K | — | 5 |
| AS134521US | DIALPAD-AS-AP - Dialpad, Inc. | 1.3K | 1.5K | 11 |
| AS14727US | LONE-STAR-ISP - LONE STAR ISP | 1.3K | 65.5K | 3 |
| AS30307US | KSMNW-NA-ASN - Kasumi Networks NA LLC | 1.3K | 3 | 5 |
| AS18493US | IGNA-NETWORKS - Igna Networks LLC | 1.3K | 256 | 6 |
| AS62795US | CITRIXSYSTEMS-AS-US - Citrix | 1.3K | — | 4 |
| AS64290US | WISP10175 - Server ISP | 1.3K | — | 2 |
| AS397582US | WOW - WOW-World of Wireless | 1.3K | — | 5 |
| AS397076US | ECI-ASN - ECi Software Solutions, Inc. | 1.3K | — | 3 |
| AS16754US | TTL-31 - TRILLIUM TRADING LLC | 1.3K | — | 4 |
| AS31772US | FCSA-AS-2 - Farm Credit Services of America | 1.3K | — | 3 |
| AS396891US | FBG-1 - FireByte Group | 1.3K | 256 | 3 |
| AS30643US | TTXCOMPANY - TTX Company | 1.3K | — | 5 |
| AS40638US | PASON-SYSTEMS-USA - Pason Systems USA Corp | 1.3K | — | 2 |