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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 |
| 1.3K |
| — |
| 2 |
| AS46788US | IMSD-AS1 - Milwaukee County Government | 1.3K | — | 2 |
| AS16744US | WUCHICAGO - THE WESTERN UNION COMPANY | 1.3K | — | 3 |
| AS32172US | RADICALMEDIA - @radicalmedia Inc. | 1.3K | — | 2 |
| AS401948US | MIXBOOST-D - VERYBOOST INC | 1.3K | — | 5 |
| AS398387US | NA-DC - International Flavors & Fragrances, Inc. | 1.3K | — | 5 |
| AS27343US | MONSANTO-INET - Monsanto | 1.3K | — | 3 |
| AS401796US | TTC-001 - Terral Telephone | 1.3K | — | 2 |
| AS6401US | ZAYO-CAN-6401 - Zayo Bandwidth | 1.3K | — | 5 |
| AS32884US | DV-TRADING-LLC - DV TRADING, LLC | 1.3K | — | 5 |
| AS400963US | AS-GLXY-DIGITAL - Galaxy Digital LP | 1.3K | — | 5 |
| AS27233US | AS27233 - Ascena | 1.3K | — | 2 |
| AS53871US | DELTEK-NET - Deltek, Inc. | 1.3K | — | 5 |
| AS32482US | BANDWIDTH-US-2 - Bandwidth Inc. | 1.3K | 65.5K | 5 |
| AS393880US | HAL - Hawaiian Airlines | 1.3K | — | 5 |
| AS54466US | AS-ISSQUARED - ISSQUARED, Inc. | 1.3K | — | 5 |
| AS31892US | FLP-MSA - Forever Living Products | 1.3K | — | 4 |
| AS13347US | MIDWEST-CABLE - Midwest Cable | 1.3K | 524.3K | 6 |
| AS397137US | SEIONTEC-SYSTEMS - Seiontec Systems, LLC | 1.3K | — | 2 |
| AS845US | SBA-CONNECT - SBA Connect, LLC | 1.3K | 1 | 6 |
| AS46323US | TELEBROAD - Telebroad LLC | 1.3K | 1 | 6 |
| AS18789US | NETMLH-AS - Main Line Health, Inc. | 1.3K | — | 2 |
| AS215225US | WebhostingFSI Webhosting FSI LLC | 1.3K | — | 5 |
| AS53811US | SFCL-HNP - San Francisco Chronicle, LLC | 1.3K | — | 2 |
| AS399909US | FRANKLINCOLLEGE - Franklin College of Indiana | 1.3K | — | 3 |
| AS22258US | COMCAST-22258 - Comcast Cable Communications, LLC | 1.3K | 15 | 20 |
| AS400915US | PURENODAL-01 - Pure Nodal, Inc. | 1.3K | — | 5 |
| AS40166US | DAEMEN-COLLEGE - Daemen University | 1.3K | — | 2 |
| AS399912US | HAYO-TELECOM - Hayo Telecom, Inc | 1.3K | 65.5K | 3 |
| AS11495US | COMNEXIA-CLEC - COMNEXIA Corporation | 1.3K | — | 5 |
| AS33378US | ASN1 - EASTERN BANK | 1.3K | — | 5 |
| AS62478US | CRADLEPOINT - Cradlepoint Inc. | 1.2K | — | 5 |
| AS53670US | COMTECH21-AEON-BOSTON - Prescient Worldwide | 1.1K | 1 | 6 |
| AS275US | NTTA-275 - NTT America, Inc. | 1.1K | 1 | 10 |
| AS21881US | RRMS-CORONA - RAPID RESPONSE MONITORING SERVICES INCORPORATED | 1.1K | — | 4 |
| AS19920US | AKINBGP - Akin, Gump, Strauss, Hauer, & Feld | 1.1K | — | 5 |
| AS396437US | COMLABS - COMMUNICATIONS LABORATORIES | 1.1K | — | 5 |
| AS1412US | GRVYUS-PIT-A - Gravity Interactive, Inc. | 1.1K | 1 | 3 |
| AS32932US | COVIUS-AS32932 - Covius Shared Services, LLC | 1K | 1 | 5 |
| AS11850US | MAGSNETLLC - Mags.Net, LLC | 1K | — | 4 |
| AS2567US | SLB-WESTERNGECO-AS - Schlumberger Limited | 1K | — | 4 |
| AS64247US | UW-RESEARCH - University of Washington | 1K | — | 1 |
| AS6652US | PIMA-COLLEGE - Pima Community College | 1K | — | 1 |
| AS23515US | ITSOLUTIONS - IT Solutions Consulting, LLC | 1K | — | 4 |
| AS26260US | TMTAS01 - The Media Trust | 1K | — | 3 |
| AS32143US | VNILESASNET - The Village of Niles | 1K | — | 4 |
| AS395247US | ACC-AUS - Accruent, LLC | 1K | — | 2 |