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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS397436US | GRMC-ASN-PRIMARY - GUADALUPE REGIONAL MEDICAL CENTER | 256 | — | 1 |
| AS14441US | NETWORK-SOLUTIONS-14441 - Network Solutions, LLC | 256 | — | 1 |
| AS23087US | CDG - Communications Data Group | 256 | — | 1 |
| AS26776US | VORTEX-OPTICS - Vortex Optics | 256 | — | 1 |
| AS23322US | PSI-ASN-23322 - Print Mail Systems, Inc. | 256 | — | 1 |
| AS46381US | E-INS-NET - E-INS, LLC | 256 | — | 1 |
| AS398365US | NHAEXTNET - Neil Hoosier & Associates, Inc. | 256 | — | 1 |
| AS400485US | APOG-PUERTA-DEL-SOL - Apogee Telecom Inc. | 256 | — | 1 |
| AS13697US | SHG-AS - Saber Healthcare Group LLC | 256 | — | 1 |
| AS22941US | AS-NOCMGT-01 - The HelpDesk Inc | 256 | — | 1 |
| AS30587US | TAI-GEORGETOWN - Toyota Tsusho America, Inc. | 256 | — | 1 |
| AS40296US | RUBENSTEIN-COMMUNICATIONS - Rubenstein Associates, Inc. | 256 | — | 1 |
| AS22718US | BROWNSVILLE-PUBLIC-UTILITIES-BOARD - Brownsville Public Utilities Board | 256 | — | 1 |
| AS395069US | IBC-SA-TESORO - International Bank of Commerce | 256 | — | 1 |
| AS211585US | MAIYUN Maiyun Zhang | 256 | 21 | 7 |
| AS23194US | PENNANT-PARK - PennantPark Investment Corporation | 256 | — | 1 |
| AS396412US | SRSBIZ - SRS BIZ | 256 | — | 1 |
| AS32379US | SOUTHERN-GRAPHIC-SYSTEMS-INC - Southern Graphic Systems, LLC | 256 | — | 1 |
| AS46551US | GRO-UCFUSM-1N - Michigan State University Federal Credit Union | 256 | — | 1 |
| AS32150US | BRADFITZ-DANGA - DANGA INTERACTIVE | 256 | 3 | 4 |
| AS32784US | NEBR-ORTHO-HOSP - OrthoNebraska | 256 | — | 1 |
| AS46697US | ACNR-01 - American Consolidated Natural Resources, Inc. | 256 | — | 1 |
| AS25850US | CARESTREAMHEALTH - Carestream Health, Inc. | 256 | — | 1 |
| AS22679US | M2OS-ASN-01 - m2os LLC | 256 | 4.1K | 2 |
| AS399386US | LCOUNTY-ASN - Laramie County Government | 256 | — | 1 |
| AS19407US | AMERICAN-TIRE-DISTRIBUTORS-INC-2 - AMERICAN TIRE DISTRIBUTORS, INC. | 256 | — | 1 |
| AS15099US | MONROE-COUNTY-MI-PUBLIC-ASN - County of Monroe | 256 | — | 1 |
| AS13997US | RD-CHI-AS - Rapid Displays, Inc | 256 | — | 1 |
| AS22262US | IDENTRUST-DR-ASN - IdenTrust | 256 | — | 1 |
| AS402837US | OMOBIO - Omobio | 256 | — | 1 |
| AS62503US | NPGCO-KRDO - News-Press & Gazette Company | 256 | — | 1 |
| AS14036US | STACKAV-01 - Stack AV | 256 | — | 1 |
| AS16576US | CODEX-STREAMING - Codex Streaming Company LLC | 256 | 65.5K | 2 |
| AS401408US | SALADCLOUD - Salad Technologies, Inc. | 256 | 256 | 2 |
| AS32221US | BARONSERVICES - Baron Services | 256 | — | 1 |
| AS401467US | ANDERSON-KELLY - Anderson-Kelly Associates, Inc. | 256 | 1 | 2 |
| AS399422US | UNIVERSAL-HOLDINGS - Universal Insurance Holdings, Inc. | 256 | — | 1 |
| AS23477US | ITBYGEEKS - IT By Geeks LLC | 256 | 1 | 2 |
| AS40099US | BB1-AS01 - Broadband One of the Midwest, Inc. | 256 | — | 1 |
| AS7349US | AS-TIERP-7349 - TierPoint, LLC | 256 | — | 1 |
| AS3708US | PACIFIC-BIOSIENCES - Pacific Biosciences of California, Inc. | 256 | — | 1 |
| AS64272US | DADUS - DOT AZ DOT US DOMAINS OF ARIZONA, LLC | 256 | 4.1K | 2 |
| AS16969US | NEFEC-ASN01 - North East Florida Educational Consortium (Putnam County School District) | 256 | — | 1 |
| AS53318US | DPS-CL1 - Deep Systems LLC | 256 | — | 1 |
| AS23879US | YAHOO-INY - INY Edge site | 256 | 2 | 3 |
| AS40754US | HENRYCOUNTYGA - Henry County, Georgia | 256 | — | 1 |