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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| 256 |
| — |
| 1 |
| AS63464US | SUNSASN - THE PHOENIX SUNS | 256 | — | 1 |
| AS11674US | HAAS-TCM-001 - Haas Group International, LLC | 256 | — | 1 |
| AS11457US | DIGITALREALTY-IT-03 - Digital Realty Trust, L.P. | 256 | — | 1 |
| AS16408US | LN-DREWU-ASN - Los Nettos | 256 | — | 1 |
| AS393696US | NBB - New Belgium Brewing Company | 256 | — | 1 |
| AS399981US | CRST-THE-TRANSPORTATION-SOLUTION - CRST THE TRANSPORTATION SOLUTION | 256 | — | 1 |
| AS400785US | MALL OF AMERICA - MALL OF AMERICA | 256 | — | 1 |
| AS31991US | PRPA - Platte River Power Authority | 256 | — | 1 |
| AS402250US | BOLD-MUST-HED - Apogee Telecom Inc. | 256 | — | 1 |
| AS33599US | RELIABLE-REPORTS-OF-TEXAS-INC - Reliable Reports of Texas, Inc. | 256 | — | 1 |
| AS401502US | AS-FALCON - Falcon (America) LLC | 256 | — | 1 |
| AS33304US | RACETRAC - RaceTrac Petroleum, Inc. | 256 | — | 1 |
| AS398433US | MANATT - Manatt, Phelps & Phillips | 256 | — | 1 |
| AS16697US | CITY-OF-COLUMBIA-MO - City of Columbia, MO | 256 | — | 1 |
| AS26513US | TGS-ASN-01 - TGS-NOPEC Geophysical Company | 256 | — | 1 |
| AS33233US | OECU-BGP1 - Oklahoma Employees Credit Union | 256 | — | 1 |
| AS400151US | SPARC-BROOKS-BROTHERS - BB OPCO LLC | 256 | — | 1 |
| AS14565US | RRTL-3719 - Red Rock Telecommunications, Inc. | 256 | — | 1 |
| AS53642US | CCUSD-301 - Central Community Unit School District 301 | 256 | — | 1 |
| AS401151US | MCOR-AS - Marion County | 256 | — | 1 |
| AS46187US | SPY - International Spy Museum | 256 | — | 1 |
| AS11064US | TAEYANG-INNOVATIONS - Taeyang Innovations LLC | 256 | 256 | 2 |
| AS46336US | GOODVILLE - Goodville Mutual Casualty Company | 256 | — | 1 |
| AS33093US | NEOGOV - NEOGOV | 256 | — | 1 |
| AS394086US | STORMGEO-US - StormGeo Corp, Inc. | 256 | 65.5K | 2 |
| AS402163US | AS-SKYVAULT - SkyVault AI | 256 | 256 | 2 |
| AS394982US | NIS - Network Innovation Solutions Inc. | 256 | — | 1 |
| AS397858US | THARANCO-GROUP - Tharanco Group Inc | 256 | — | 1 |
| AS54851US | NEBH - New England Baptist Hospital | 256 | — | 1 |
| AS55196US | LTCP-AS2013 - Long Term Care Partners, LLC | 256 | — | 1 |
| AS36862US | AS36862 - Green Mountain Technology, LLC | 256 | — | 1 |
| AS399287US | KRISPY-KREME - Krispy Kreme | 256 | — | 1 |
| AS20395US | MEDFUSION-LEWISVILLE - Med Fusion, LLC | 256 | — | 1 |
| AS393714US | ASN-SDMCU - San Diego Metropolitan Credit Union | 256 | — | 1 |
| AS395691US | XTTRIUM-ASN - XTTRIUM LABORATORIES, Inc. | 256 | — | 1 |
| AS402762US | SHIFT4 - Shift4 | 256 | — | 1 |
| AS393407US | FLORESVILLE-ISD - Floresville ISD | 256 | — | 1 |
| AS62997US | RICKEY-S-FRANCIS-JR - Abc-Hosters LLC | 256 | 2 | 3 |
| AS32998US | MIMCOM - Mimbres Communications, LLC | 256 | — | 1 |
| AS218739US | ORG-OCL44-AS Orbis Connect LLC | 256 | — | 1 |
| AS35990US | CSL-765-35990 - Citizen Support LLC | 256 | 4.1K | 2 |
| AS21761US | CLUBCAR-01 - Club Car, LLC | 256 | — | 1 |
| AS14035US | KATTEN-MUCHIN-ROSENMAN-LLP - KATTEN MUCHIN ROSENMAN LLP | 256 | — | 1 |
| AS218652US | NIGHTCOIL-NETWORKS Nightcoil Networks LLC | 256 | 1 | 2 |
| AS35957US | IT-IS-WRITTEN - It Is Written, Inc. | 256 | — | 1 |
| AS399225US | CVI-APAC - CooperVision, Inc. | 256 | — | 1 |