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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,149 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 256 |
| — |
| 1 |
| AS54599US | COMMUNITYAMERICA - CommunityAmerica Credit Union | 256 | — | 1 |
| AS211541US | STORJ Storj Labs Inc. | 256 | — | 1 |
| AS397648US | CH3-ASN-01 - NORTH AMERICAN SCIENCE ASSOCIATES, LLC | 256 | — | 1 |
| AS934US | BSTI - Big Sky Tech & Internet, Inc. | 256 | — | 1 |
| AS62501US | SA10 - Security Arsenal | 256 | 1 | 2 |
| AS216013US | PAPYRUS-AS Caleb Bonner Trading as Papyrus VIP | 256 | — | 1 |
| AS399747US | AMSP-ASN - Aaron McDaniel, Sole Proprietor | 256 | 3 | 4 |
| AS19405US | HRSD-INTERNET-IP-BLOCK - Hampton Roads Sanitation District | 256 | — | 1 |
| AS397904US | PDX-AREN - Avangrid Renewables, LLC | 256 | — | 1 |
| AS32648US | MNAT - Morris, Nichols, Arsht and Tunnel | 256 | — | 1 |
| AS16407US | LINDEN-ADVISORS - Linden Investors LP | 256 | — | 1 |
| AS401983US | BINGHAM-MEMORIAL-HOSPITAL - Bingham Memorial Hospital | 256 | 256 | 2 |
| AS401828US | ARLINGTON-TV-COOPERATIVE - Arlington T-V Cooperative, Inc | 256 | — | 1 |
| AS394052US | TUSCANO-NET - W.N. Tuscano Agency | 256 | — | 1 |
| AS15302US | TRIALCARD-01 - TrialCard Incorporated | 256 | — | 1 |
| AS395999US | KIM-199-120-191-0 - Kimball International, Inc. | 256 | — | 1 |
| AS19336US | BLAIN-SUPPLY-PRIMARY - BLAIN SUPPLY, INC | 256 | — | 1 |
| AS53843US | SEU-MAIN - SOUTHEASTERN UNIVERSITY, INC. | 256 | — | 1 |
| AS54361US | PBCI - Poarch Band of Creek Indians | 256 | — | 1 |
| AS401456US | DREWUN-01 - Drew University | 256 | — | 1 |
| AS45813US | SAGENTMCLLC-AS-AP - Sagent M&C, LLC | 256 | — | 1 |
| AS401733US | WTS-MSP - Wachter Technology Solutions | 256 | — | 1 |
| AS401977US | SNC-TUOL - Sierra Nevada Communications | 256 | — | 1 |
| AS30546US | INFINEON TECHNOLOGIES AMERICAS CORP - Infineon technologies Americas Corp | 256 | 1 | 2 |
| AS396865US | BACKBLAZE - Backblaze Inc | 256 | 4.1K | 2 |
| AS53465US | ANSYS - ANSYS, INC | 256 | — | 1 |
| AS40362US | CHAPIN-AS - Chapin School | 256 | — | 1 |
| AS63046US | BRAVE - Brave Software, Inc. | 256 | — | 1 |
| AS394183US | TRUSTMARK-BANK - Trustmark Bank | 256 | — | 1 |
| AS401498US | ROCSOFT - Rochester Software Associates, Inc. | 256 | — | 1 |
| AS11884US | IWPBGP - Insteel Industries, Inc. | 256 | — | 1 |
| AS31787US | MPORTHO - Microport Orthopedics, Inc. | 256 | — | 1 |
| AS54692US | GS-ASN-01 - GuideStone Financial Resources of the Southern Baptist Convention | 256 | — | 1 |
| AS401751US | FMH-NET - Farmers Mutual Hail Insurance Company of Iowa | 256 | — | 1 |
| AS35991US | PAULSON-CO - Paulson & CO. INC. | 256 | — | 1 |
| AS54912US | BAYAL-IP1 - Bay Alarm Company | 256 | — | 1 |
| AS40505US | APXALARM-ASN - Vivint, Inc | 256 | — | 1 |
| AS7064US | WBMLP-MUNI-01 - West Boylston Municipal Light Plant | 256 | — | 1 |
| AS395234US | ANESTHESIALLC - ANESTHESIA BUSINESS CONSULTANTS LLC | 256 | — | 1 |
| AS393781US | HELMGROUP-FREEPORT - Helm Group, Inc. | 256 | — | 1 |
| AS58202US | NoPKT NoPKT LLC | 256 | 4 | 5 |
| AS53331US | IMPERIAL-CAPITAL-GROUP-LLC - Imperial Capital Group LLC | 256 | — | 1 |
| AS20420US | DV - Digital Ventures, LLC | 256 | 2 | 3 |
| AS394701US | SOUTH-PLAINS-ELECTRIC-COOP - South Plains Electric Cooperative, Inc. | 256 | — | 1 |
| AS18720US | PACSUN - Pacific Sunwear of California | 256 | — | 1 |
| AS19253US | SBAINC-AS - SBA, Inc | 256 | — | 1 |