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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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS7013US | AS-HSLC-01 - Health Sciences Libraries Consortium | 256 | — | 1 |
| AS399896US | VWNA-AS3 - Volkswagen Group of America, Inc. | 256 | — | 1 |
| AS8079US | HTS - HIGH-Q TECHNICAL SOLUTIONS | 256 | 256 | 2 |
| AS402698US | MINUTE - Minute | 256 | 256 | 2 |
| AS62924US | COBNET-ASN-1 - City of Bryan, Texas | 256 | — | 1 |
| AS398428US | NMTRANS-HQ-AS01 - N&M Transfer Co., Inc. | 256 | — | 1 |
| AS395820US | ISG-SECURITY - Integrated Security Group | 256 | — | 1 |
| AS395186US | POP - POP | 256 | — | 1 |
| AS394969US | LOLAWIRELESS - Lola Wireless | 256 | 65.5K | 2 |
| AS23025US | ASNSTL - City of St. Louis | 256 | — | 1 |
| AS397127US | IRACING - IRACING.COM MOTORSPORT SIMULATIONS, LLC | 256 | 1 | 2 |
| AS135004US | FY-AS-AP - fy, Inc. | 256 | — | 1 |
| AS54626US | ANALOG DEVICES - Analog Devices, Inc. | 256 | — | 1 |
| AS394894US | ANOKA-HENNEPIN-SCHOOLS - ANOKA-HENNEPIN PUBLIC SCHOOL DISTRICT | 256 | — | 1 |
| AS401397US | MERCURY-RADIO-ARTS - Mercury Radio Arts, Inc. | 256 | — | 1 |
| AS26830US | ASN-OPERS - OPERS | 256 | 1 | 2 |
| AS401004US | DAB-OH-01 - Dabble Ventures | 256 | — | 1 |
| AS33100US | DHR-INTERNATIONAL - DHR INTERNATIONAL | 256 | — | 1 |
| AS19911US | SECURITYSERVICES - Vercara, LLC | 256 | — | 1 |
| AS399807US | MERBIO-01 - Meridian Bioscience Inc. | 256 | — | 1 |
| AS53465US | ANSYS - ANSYS, INC | 256 | — | 1 |
| AS22665US | UNGAGE - Ungage Capital LLC | 256 | 20 | 6 |
| AS53900US | ORBIMED - OrbiMed Advisors, LLC | 256 | — | 1 |
| AS397910US | TSC - AEG | 256 | — | 1 |
| AS401117US | EHL - EQM Holdings LLC | 256 | 1 | 2 |
| AS397851US | SCCC-LIBERAL-01 - Seward County Community College | 256 | — | 1 |
| AS402361US | PEI-99 - Perry | 256 | — | 1 |
| AS30668US | MADISONCOUNTYNY-01 - Madison County New York | 256 | — | 1 |
| AS401200US | SQUARESPACE-CORP-01 - Squarespace, Inc. | 256 | — | 1 |
| AS901US | FSTRF14541 - Frontier Science and Technology Research Foundation, Inc. | 256 | — | 1 |
| AS395880US | BCL-AS1 - Boomerang Communications LLC | 256 | 65.5K | 2 |
| AS40657US | OANDA-1 - OANDA Corporation | 256 | — | 1 |
| AS398080US | TELEVISION-CITY-STUDIOS-LLC - Television City Studios, LLC | 256 | — | 1 |
| AS21721US | BLT-US-01 - Blount International, Inc | 256 | — | 1 |
| AS33145US | ASN-BETHANYBCS - Bethany Christian Services | 256 | — | 1 |
| AS397702US | SSSS - 1776 Solutions, LLC | 256 | 65.5K | 3 |
| AS55266US | FRMC01 - Firelands Regional Medical Center | 256 | — | 1 |
| AS393352US | CITY-OF-LAREDO - CITY OF LAREDO | 256 | — | 1 |
| AS30659US | OCFL-COMPTROLLER - Orange County Comptroller | 256 | — | 1 |
| AS33324US | CHALLENGE-PRINTING - The IMAGINE Group, LLC | 256 | — | 1 |
| AS6248US | DEKA-R-D - DEKA Research & Development Corp | 256 | — | 1 |
| AS36188US | ABL-AS - Alston & Bird, LLP | 256 | — | 1 |
| AS1258US | XKL-NET-AS - XKL, LLC | 256 | — | 1 |
| AS393367US | SJMC-TCHD-3 - Teton County Hospital District | 256 | — | 1 |
| AS398214US | PHP-ASN - Prominence Health Plan | 256 | — | 1 |
| AS55210US | SAMC-HCHA - Southeast Alabama Medical Center | 256 | — | 1 |