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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.8M | 3,614 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,429 |
| 2.6K |
| — |
| 7 |
| AS30691US | LLDC - Lifeline Data Centers | 2.6K | — | 10 |
| AS33478US | TECHOPS-ASN-2 - Live Nation Entertainment, Inc. | 2.6K | — | 10 |
| AS19181US | CWIE - CWIE LLC | 2.6K | 259 | 12 |
| AS13688US | PSEG - Public Service Enterprise Group | 2.6K | — | 4 |
| AS32912US | PUBLIX-WEB-SERVICES - Publix Super Markets, Inc. | 2.6K | — | 9 |
| AS13893US | EHI-NA-AS-1 - Enterprise Holdings, Inc. | 2.6K | 5 | 15 |
| AS10326US | WPI - Worcester Polytechnic Institute | 2.6K | 1 | 3 |
| AS12223US | AS-EQUIVOICE-COM - MNJ Technology Services LLC | 2.6K | — | 4 |
| AS40528US | ICANN-LAX - ICANN | 2.6K | 3 | 7 |
| AS62834US | PALIG - Pan-American Life Insurance Group, Inc. | 2.6K | — | 2 |
| AS36693US | ALEGENT-HEALTH-1 - IMMANUEL MEDICAL CENTER | 2.6K | — | 2 |
| AS30298US | META SOLUTIONS ATHENS - META Solutions | 2.6K | — | 2 |
| AS46244US | WEBMD-IDC1-AS - WebMD, LLC | 2.6K | — | 3 |
| AS32123US | 4FAST-NET - Root Automation | 2.6K | — | 6 |
| AS19970US | CARRIERDOMAIN-NYC - R&R Managed Telecom Services | 2.6K | 4.1K | 11 |
| AS33019US | WHEATONCOLLEGE - Wheaton College | 2.6K | — | 3 |
| AS402265US | MUTANET - Mutanet LLC | 2.6K | — | 10 |
| AS18630US | RIDLEYSD-NET - The Ridley School District | 2.6K | — | 2 |
| AS64269US | NSOFNETWORKSINC - Meta Networks Inc | 2.6K | — | 9 |
| AS22295US | ADVIN - Advin Services LLC | 2.6K | 3.3K | 16 |
| AS20062US | WASTE-MAN - WASTE MANAGEMENT INC. | 2.6K | — | 10 |
| AS14283US | BLUEONE - blueone.net | 2.6K | — | 10 |
| AS25814US | DIGITALC - DigitalC | 2.6K | — | 6 |
| AS19940US | ACECAPE-INC - Ace Innovative Networks, Inc. | 2.6K | — | 10 |
| AS53866US | QTS-AS - Omeda Communications | 2.6K | — | 3 |
| AS18934US | TENHATS - TenHats, LLC | 2.6K | 3 | 13 |
| AS36410US | VHAINC-IPNET - Vizient, Inc. | 2.6K | — | 7 |
| AS30405US | CAIU-NET - Capital Area Intermediate Unit | 2.6K | 4.1K | 11 |
| AS32775US | SMART-CITY-DACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2.6K | — | 4 |
| AS35895US | CMMG-LTD - CMMG Ltd | 2.6K | 4.1K | 5 |
| AS398642US | SKANSKA-USA-WEST - SKANSKA USA INC | 2.6K | 1K | 4 |
| AS11133US | SORENSON-99 - Sorenson Communications, Inc. | 2.6K | — | 10 |
| AS16668US | GBPSW-AS - GBP Software, LLC | 2.6K | 65.5K | 7 |
| AS32111US | CITIGROUP-JAPAN - Citigroup Inc. | 2.6K | — | 10 |
| AS53845US | BBDTEL - Broadband Dynamics, LLC | 2.6K | — | 10 |
| AS25871US | WFG - Willkie Farr & Gallagher LLP | 2.6K | — | 10 |
| AS14438US | USA-CHOICE-OIL-CITY - U S A CHOICE INTERNET SERVICES CO. | 2.6K | — | 10 |
| AS400902US | WASGN - Gaylord National Resort & Convention Center | 2.6K | — | 3 |
| AS36363US | VIRIDIO-SOCAL - Viridio | 2.6K | 65.5K | 5 |
| AS16436US | INTERSTATEWIRELESS-AZAIRNET-01 - Az Airnet | 2.6K | 131.1K | 6 |
| AS14602US | TELIAX - Teliax, Inc. | 2.6K | 65.5K | 8 |
| AS29897US | ATG-COMMUNICATIONS-LLC - ATG Communications, LLC | 2.6K | — | 7 |
| AS395189US | BTCS-BSPS-ASN-1 - BROADRIDGE SECURITIES PROCESSING SOLUTIONS, LLC | 2.6K | — | 6 |
| AS46873US | HOSTCOLOR - Host Color | 2.6K | — | 10 |
| AS18491US | VTLA - NTT Global Networks Incorporated | 2.6K | — | 10 |
| AS22513US | CHARTER-22513-WA-OR-C3 - Charter Communications LLC | 2.6K | 288 | 4 |