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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 | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 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 | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 1 |
| AS33282US | STONE-BUY4 - Buy4 Sub LLC | 1K | — | 4 |
| AS11110US | SERVERCLOUD - SERVERCLOUD | 1K | 65.5K | 2 |
| AS22912US | CITGO-PETROLEUM - CITGO PETROLEUM CORPORATION | 1K | — | 4 |
| AS40594US | BULLE - Bulle Media Group, Inc. | 1K | — | 4 |
| AS20310US | ITW-CORPORATE - Illinois Tool Works | 1K | — | 4 |
| AS20441US | SL-2182-20441 - SAGILITY LLC | 1K | — | 1 |
| AS30233US | PAYCHEX-O - Paychex Inc. | 1K | — | 1 |
| AS46864US | WORKD-IT - Workday, Inc. | 1K | — | 4 |
| AS55064US | ARISTAASN1 - Arista Networks, Inc. | 1K | 3 | 7 |
| AS63472US | EINETWORK - eiNetwork | 1K | — | 1 |
| AS55281US | ECHO-GLOBAL - Echo Global Logistics | 1K | — | 4 |
| AS40722US | CALARTS - California Institute of the Arts | 1K | — | 4 |
| AS18842US | VERTICAL-SCR - Business Information Group, Inc. | 1K | — | 4 |
| AS53307US | YISG - Sedgwick Claims Management Services, Inc. | 1K | — | 3 |
| AS13843US | PHOENIX-AMERICAN - Phoenix American Inc. | 1K | — | 1 |
| AS396862US | NMHS - Nebraska Methodist Health System, Inc. | 1K | — | 3 |
| AS35923US | NCHC - KENVUE BRANDS LLC | 1K | — | 4 |
| AS394305US | JLINK-ASN - Jlink, Inc | 1K | — | 3 |
| AS46424US | NJTA - New Jersey Turnpike Authority | 1K | — | 4 |
| AS398979US | RINGER-MOBILE-01 - Ringer | 1K | — | 2 |
| AS26217US | VPHOLDINGS - V P Holdings, Inc. | 1K | — | 1 |
| AS394138US | IQVIA-DURHAM-6A - IQVIA Holdings Inc | 1K | — | 1 |
| AS11360US | ELECFORIMAG - Electronics for Imaging, Inc. | 1K | — | 4 |
| AS32782US | PROD - Stratos Global Services, LLC | 1K | — | 1 |
| AS3789US | ESSENTIAHEALTH-3789 - Essentia Health East | 1K | — | 4 |
| AS393486US | APOG-MUOP - Apogee Telecom Inc. | 1K | — | 3 |
| AS62552US | SANMARINOUSD - San Marino Unified School District | 1K | — | 1 |
| AS22495US | SIMON-208-0 - Simon Property Group LP | 1K | — | 2 |
| AS26199US | NKCHA - North Kansas City Hospital Auxiliary | 1K | — | 4 |
| AS393492US | DIGALERT - Underground Service Alert of Southern California | 1K | — | 3 |
| AS53355US | CUW-1 - Concordia University Wisconsin | 1K | 1 | 5 |
| AS395594US | CONSUMERSENERGYCO-ASN - Consumers Energy Company | 1K | — | 2 |
| AS26693US | TELCOM-WEST-LLC - Telcom West | 1K | — | 1 |
| AS31829US | HRVAS - Heruvim, Inc | 1K | — | 3 |
| AS40100US | ALURIUM - Alurium Hosting | 1K | — | 4 |
| AS399256US | FUSD-ASN - Fontana Unified School District | 1K | — | 3 |
| AS12027US | HYTRON-CA - Hytron Network Services (US) LLC | 1K | — | 3 |
| AS394230US | CDCK - Civilized Discourse Construction Kit, Inc. | 1K | 5 | 9 |
| AS46745US | GCSSK12NET - Gainesville City Schools | 1K | — | 1 |
| AS400858US | ARRIVIA - ARRIVIA, INC. | 1K | — | 3 |
| AS46814US | MEDICA-NET - Medica Health Plans | 1K | — | 4 |
| AS399211US | LAKE-PLACID-FIBER - Lake Placid Fiber LLC | 1K | — | 1 |
| AS1443US | SUPERCOOPER01 - CooperVision, Inc. | 1K | — | 1 |
| AS23275US | LM-USA - Lycamobile USA Inc | 1K | — | 4 |
| AS53504US | PULSENET-OPTIBAND - PulseNET | 1K | — | 4 |
| AS33062US | ALEXLEE-INC - ALEX LEE INC | 1K | — | 2 |