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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 |
| 512 |
| — |
| 2 |
| AS399102US | WA-ST-SCHOOL-BLIND - Washington State School for the Blind | 512 | — | 2 |
| AS22130US | DAS-BGP-29 - Doctor's Associates LLC | 512 | — | 2 |
| AS13478US | BEAGLE - Beagle Networks | 512 | — | 2 |
| AS10786US | CHARTWAY-FCU - Chartway Federal Credit Union | 512 | — | 2 |
| AS15249US | XPRESS-DATA - Xpress Data, Inc. | 512 | — | 2 |
| AS398015US | MICRO4ASN - MicroFour, Inc. | 512 | — | 2 |
| AS20367US | CITY-OF-STCLOUD-FL - CITY OF ST. CLOUD | 512 | — | 2 |
| AS62954US | WTG-AS - Walser Technology Group Inc. | 512 | — | 2 |
| AS393618US | VCT - Vision Concept Technology, LLC | 512 | — | 2 |
| AS64279US | TFSLAOC - Third Federal Savings and Loan Association of Cleveland | 512 | — | 2 |
| AS1003US | ANDREWNET - andrewnet | 512 | 11 | 13 |
| AS46139US | METASOURCE - Metasource LLC | 512 | — | 2 |
| AS36513US | BRETSA - BRETSA | 512 | — | 2 |
| AS398572US | MONOLITHICPOWER-SJC - Monolithic Power Systems,Inc | 512 | — | 2 |
| AS55261US | DMISTL - DISTRIBUTION MANAGEMENT INC | 512 | — | 2 |
| AS36567US | WAPT-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS10959US | BAC-NPC - Bank of America, National Association | 512 | — | 2 |
| AS31800US | DALNET - DALnet | 512 | — | 2 |
| AS399257US | INCOMM-NET4 - InComm | 512 | — | 2 |
| AS32854US | PCTCU-ASN - Achieva Credit Union | 512 | — | 2 |
| AS397956US | NETWORK-DATA-SYSTEMS - Network Data Systems, Inc | 512 | 4.1K | 3 |
| AS398670US | E-NETWORKS - Takk LLC | 512 | — | 2 |
| AS399712US | ENTEFY-ASN - Entefy Inc. | 512 | — | 2 |
| AS29921US | SAIFCO - State Accident Insurance Fund Corporation | 512 | 3 | 5 |
| AS14353US | WIX-IT - Wix.Com, Inc. | 512 | — | 2 |
| AS22579US | INDEPENDENCE-HEALTH-SYSTEM-BUTLER - Butler Memorial Hospital | 512 | — | 2 |
| AS32169US | CMENETWORKS - CME Networks, LLC | 512 | 256 | 3 |
| AS62606US | SECTOR7LLC - Sector 7, LLC | 512 | — | 2 |
| AS394803US | ANSI-ASN - American National Standards Institute | 512 | — | 2 |
| AS32428US | BELZ-INVESTCO - BELZ ENTERPRISES | 512 | — | 2 |
| AS397509US | FLOOR-AND-DECOR - Floor and Decor Outlets of America, Inc. | 512 | — | 2 |
| AS33482US | ASN-CARDTRONICS - CARDTRONICS USA INC | 512 | — | 2 |
| AS400781US | XTC-NA-ASN-01 - XenTegra Connect | 512 | — | 2 |
| AS401165US | COLOVORE-01 - Colovore LLC | 512 | — | 2 |
| AS218631US | EnderHost EnderHost LLC | 512 | 1 | 3 |
| AS63395US | FLEXTRADE-SYSTEMS-INC - Flextrade Systems, Inc. | 512 | — | 2 |
| AS19480US | CPL - CHICAGO PUBLIC LIBRARY | 512 | — | 2 |
| AS30252US | BMCD-US - BURNS & MCDONNELL, INC. | 512 | — | 2 |
| AS36013US | MRESNET - Missouri River Energy Services | 512 | — | 2 |
| AS399769US | SLIMCD - Online Commerce Corp | 512 | — | 1 |
| AS23434US | SURS - State Universities Retirement System | 512 | — | 2 |
| AS398581US | CYBERMAXX-01 - CyberMaxx LLC | 512 | — | 2 |
| AS393668US | STATEFAIRCC - State Fair Community College | 512 | 32 | 19 |
| AS26006US | EXODO - Exodo LLC | 512 | 272 | 4 |
| AS23190US | AESPAC - AES Pacific Inc. | 512 | — | 2 |
| AS394913US | AIRGRIDS - AirGrids | 512 | — | 2 |