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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 |
| 1K |
| — |
| 3 |
| AS46563US | STONEH-AS - Stonehill College | 1K | — | 1 |
| AS62816US | OWS - OCTOPUS WEB SOLUTION INC | 1K | — | 4 |
| AS393435US | LYLE-01 - Lyle Research | 1K | 4.1K | 4 |
| AS32215US | SVVSD - SVVSD | 1K | — | 3 |
| AS21530US | FISERV-EPF-OMAHA - Fiserv Solutions, LLC | 1K | 3 | 5 |
| AS395382US | CFN-AS - COMMONWEALTH EQUITY SERVICES, INC. | 1K | — | 4 |
| AS40739US | SPYFU - Spy Fu, Inc. | 1K | — | 3 |
| AS22861US | CAMP-COMM-SERVICES - Camp Communication Services, INC | 1K | — | 4 |
| AS14021US | PSECU - Pennsylvania State Employees Credit Union | 1K | — | 4 |
| AS53911US | NTK001 - NET TALK.COM INC. | 1K | — | 4 |
| AS47063US | SWITCHSPACE - Switchspace Inc. | 1K | — | 4 |
| AS53598US | NJRCASN53598 - National Jewish Medical and Research Center Corporation | 1K | — | 4 |
| AS393947US | FIRMFARM-ASN-V1 - Firm Farm | 1K | 98.3K | 5 |
| AS25799US | M247AI-AS-US - 24/7.ai, Inc | 1K | — | 4 |
| AS399404US | VELCO-SP-NET - Vermont Electric Power Company, Inc. | 1K | — | 1 |
| AS55173US | AVIAT-NETWORKS - Aviat U.S., Inc. | 1K | — | 4 |
| AS6450US | PIXNET-AS - Providers Internet Exchange | 1K | — | 3 |
| AS46185US | MAXSIP - Maxsip Telecom Corp | 1K | — | 4 |
| AS138948US | NTC-AS-APD - NORTHERN TRUST CORPORATION | 1K | — | 3 |
| AS402146US | EXE-DEV - Bold Software Inc | 1K | 1 | 2 |
| AS55024US | WSCC-AS1 - Walters State Community College | 1K | — | 3 |
| AS32897US | CCPUD-NETWORKS - Chelan County Public Utility District No.1 | 1K | — | 1 |
| AS33046US | WESTERN-FARMERS-ELECTRIC-COOPERATIVE - WESTERN FARMERS ELECTRIC COOPERATIVE | 1K | — | 3 |
| AS16674US | COMPASSGROUP-USA - Compass Group USA Inc | 1K | — | 4 |
| AS394542US | MS-FIBER - MS Fiber, LLC | 1K | 256 | 2 |
| AS32430US | BCPO - Bergen County Prosecutors Office | 1K | — | 4 |
| AS31784US | BAINBRIDGE-1 - City of Bainbridge | 1K | 65.5K | 2 |
| AS209179US | AFRICLOUD AfriCloud LLC | 1K | 5 | 9 |
| AS40662US | LAYER7-MITIGATION - Layer7 Technologies Inc | 1K | — | 4 |
| AS398383US | WMBB-WMF-7000 - Point Broadband Fiber Holding, LLC | 1K | — | 1 |
| AS39998US | WEBSERVIO-COLO-KNOXVILLE - Webservio, Inc. | 1K | — | 4 |
| AS10990US | ATLDC - Tulix Systems, Inc. | 1K | — | 1 |
| AS14947US | RETN-US - RETN US LLC | 1K | — | 1 |
| AS397189US | WHISKEYCITY - Lawrenceburg Municipal Utilities | 1K | — | 1 |
| AS397010US | DICE-TECH-ASN-01 - Dice Lion Technology, LLC | 1K | — | 4 |
| AS36550US | MA-MORTENSON-COMPANY - M. A. Mortenson Company | 1K | — | 3 |
| AS11901US | COSWAN - County of Sacramento | 1K | — | 2 |
| AS394688US | QUINNIPIAC-UNIVERSITY - Quinnipiac University | 1K | — | 4 |
| AS401146US | TURNEL - TURNEL | 1K | 16 | 5 |
| AS62584US | PLATINUM-DC - Platinum Data Centers, Inc. | 1K | — | 1 |
| AS399910US | SIPNAV - SipNav LLC | 1K | 256 | 5 |
| AS395700US | OMB-ASN - Executive Office Of The President | 1K | 8 | 9 |
| AS13822US | MILTON-ACADEMY - Milton Academy | 1K | — | 1 |
| AS397969US | CL-ASN-01 - Cambium Learning, Inc. | 1K | — | 4 |
| AS22727US | USADATANET - WCS | 1K | — | 4 |
| AS10490US | SOUTHERN-CROSSROADS-SOX - Georgia Institute of Technology | 1K | 65.5K | 2 |