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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) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| NPC-AS-1 - Northland Pioneer College |
| 768 |
| — |
| 3 |
| AS16903US | TIGER-47 - Texas Southern University | 768 | — | 2 |
| AS978US | SHAMROCK-TRADING-CORPORATION - Shamrock Trading Corporation | 768 | — | 3 |
| AS62804US | BITSHELTER-NYC - PhotoShelter, Inc. | 768 | — | 2 |
| AS13435US | COMMUNITY-HEALTH-CHOICE - Community Health Choice, Inc. | 768 | — | 3 |
| AS11166US | JCOM-3 - J2 Cloud Services, LLC | 768 | — | 3 |
| AS32957US | AVSL-AS32957 - FactSet Research Systems, Inc. | 768 | — | 3 |
| AS897US | TURTLE-ROCK-STUDIOS - Turtle Rock Studios, Inc. | 768 | 5 | 8 |
| AS401813US | ARISTOCRAT INTERACTIVE - NEOGAMES US LLP | 768 | — | 3 |
| AS395742US | TBG-SERVICES-LLC-DBA-NEXTMSP - The Brookfield Group, LLC. | 768 | 65.5K | 4 |
| AS33666US | CMCS - Comcast Cable Communications, LLC | 768 | 3 | 6 |
| AS20429US | AS20429 - Guitar Center | 768 | — | 3 |
| AS32130US | BRIGHT-HORIZONS - Bright Horizons | 768 | — | 3 |
| AS398476US | TORC-ROBOTICS - TORC Robotics, Inc. | 768 | — | 3 |
| AS53593US | ZCONNECT-01 - zConnect | 768 | — | 3 |
| AS398756US | SUNYBROOME-AS - SUNY Broome Community College | 768 | — | 3 |
| AS25657US | BASECAMP - Basecamp, LLC | 768 | — | 3 |
| AS11679US | STIHL-204-124-67 - Stihl Inc. | 768 | — | 3 |
| AS40916US | EVALSE - Evalse, LLC | 768 | 3 | 6 |
| AS3557US | ISC-AS - Internet Systems Consortium, Inc. | 768 | 3 | 4 |
| AS33583US | IBC-FGIS - Isabella Bank Corporation | 768 | — | 3 |
| AS12185US | ASN1 - Thompson, Siegel & Walmsley LLC | 768 | — | 3 |
| AS23545US | CENTRICFL-ASN - Centric Fiber Florida, LLC | 768 | 65.5K | 4 |
| AS14306US | GLAXOSMITHKLINE - GlaxoSmithKline | 768 | — | 3 |
| AS12142US | SULLIVAN-CROMWELL - SULLCROM | 768 | — | 3 |
| AS18489US | VTLA - NTT Global Networks Incorporated | 768 | — | 3 |
| AS396527US | MIT-PUBWIFI - Massachusetts Institute of Technology | 768 | — | 3 |
| AS20282US | NYFIX20282 - Broadridge Trading and Connectivity Solutions Inc. | 768 | — | 3 |
| AS18760US | AS18760 - City of Rancho Cucamonga | 768 | — | 3 |
| AS11954US | BAYVIEW-FINANCIAL-INETOPS - Bayview Financial, LP | 768 | — | 3 |
| AS53410US | VA-DATACENTER - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS26686US | RCL-262-26686 - RedBaron Consulting, LLC | 768 | — | 2 |
| AS14196US | YAHOO-CHA - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS399034US | ASN-ENFOTECH-01 - enfoTech & Consulting Inc. | 768 | — | 3 |
| AS40956US | NORTHWOOD-UNIVERSITY - Northwood University | 768 | — | 3 |
| AS36365US | NEOVEST-US - Neovest, Inc | 768 | — | 3 |
| AS33426US | PEOPLEFLUENT-NETDIMENSIONS-INC - PeopleFluent | 768 | — | 3 |
| AS394714US | DRC - Data Recognition Corporation | 768 | — | 3 |
| AS399594US | BLUESPRING-01 - Blue Spring Broadband | 768 | — | 3 |
| AS55217US | TRIWEST-HA-DC1 - TRIWEST HEALTHCARE ALLIANCE | 768 | — | 2 |
| AS396209US | AS-EP-01-PHL - Enclara Pharmacia, Inc. | 768 | — | 3 |
| AS397787US | MEWUK-NETWORKS - Black Oak Casino | 768 | 4.1K | 3 |
| AS21806US | NATIONAL-FUEL - National Fuel Gas Distribution Corporation | 768 | — | 3 |
| AS33611US | NUVO2 - Nuvodia, LLC | 768 | — | 3 |
| AS10379US | DELUXE - Deluxe Corporation | 768 | — | 3 |
| AS17215US | AMEREN-AS3 - Ameren Corp. | 768 | — | 3 |
| AS54321US | COMPUTEX - ENETSolutions L.L.C | 768 | — | 3 |