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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS21780US | GRIFFITH-LABORATORIES - GRIFFITH FOODS INC. | 256 | — | 1 |
| AS394444US | ASNJEFFXDC01 - Jefferson Radiology, P.C. | 256 | — | 1 |
| AS19779US | SGFD - St. George Fire Department | 256 | — | 1 |
| AS11068US | HBMMJAS - Hanna, Brophy, MacLean, McAleer & Jensen, L.L.P | 256 | — | 1 |
| AS64293US | MHB-AS1 - Mobile Heartbeat | 256 | — | 1 |
| AS54250US | SF3050 - NavCom Technology, Inc | 256 | — | 1 |
| AS21518US | INTEGRIS-HEALTH - Integris Health, Inc. | 256 | — | 1 |
| AS40019US | SENDLANE - Sendlane | 256 | — | 1 |
| AS26624US | MOMEN-5-ATL-LAB - Momentum Telecom, Inc. | 256 | — | 1 |
| AS40409US | MARMOT-LIBRARY-NETWORK - Marmot Library Network, Inc. | 256 | — | 1 |
| AS14816US | HKUASN - Metabo HPT | 256 | — | 1 |
| AS401006US | DEEPINTENT - DeepIntent, Inc. | 256 | — | 1 |
| AS12160US | KELLER-AND-HECKMAN-LLP - Keller and Heckman LLP | 256 | — | 1 |
| AS27371US | SCGASN - Starwood Capital Group, LLC | 256 | — | 1 |
| AS402212US | NICKTRONICIT - NicktronicIT LLC | 256 | 1 | 2 |
| AS31778US | CASCADE-MEDICAL-IMAGING - Cascade Medical Imaging | 256 | — | 1 |
| AS36035US | INTELLICOMM-1 - Intellicomm Inc. | 256 | — | 1 |
| AS394337US | SIMEON - Simeon Networks LLC | 256 | — | 1 |
| AS402801US | ANDRII-NET - Andrii | 256 | 3 | 4 |
| AS394295US | MOLNII - Federal Hill Solutions | 256 | — | 1 |
| AS32799US | BOLD-TECHNOLOGIES - Bold Technologies, Ltd. | 256 | — | 1 |
| AS396189US | ABI - ABI Research | 256 | — | 1 |
| AS394155US | ENSTARAKASN - Enstar Natural Gas Company | 256 | — | 1 |
| AS23438US | EZLINKS - EZLinks Golf, Inc. | 256 | — | 1 |
| AS399270US | MGMC-NET - MARY GREELEY MEDICAL CENTER | 256 | — | 1 |
| AS399681US | SARNOVA-DC-ASN01 - SARNOVA, INC. | 256 | — | 1 |
| AS2725US | BES-NET - Berkeley Educational Services of New Jersey, Inc. | 256 | — | 1 |
| AS30563US | STRATACOM-GA-1 - Stratacom Communications, Inc. | 256 | — | 1 |
| AS46834US | ACLAB - Ascend Clinical, LLC | 256 | — | 1 |
| AS40769US | FIDELIS-GROUP - 22-3791112 | 256 | — | 1 |
| AS23057US | DART-IP-ASN - DART TRANSIT COMPANY | 256 | — | 1 |
| AS39947US | TMGHEALTH - TMG Health, Inc | 256 | — | 1 |
| AS400949US | AOTW - Angel of the Winds Casino | 256 | — | 1 |
| AS401241US | IHS - Integrated Hosted Services, Inc. | 256 | — | 1 |
| AS399276US | KCCURRENT - KC Current | 256 | — | 1 |
| AS14423US | NOVAC-AS - NOVA CASUALTY COMPANY | 256 | — | 1 |
| AS402995US | RNR - Regional | 256 | — | 1 |
| AS13494US | AS-NJ - Morningstar, Inc. | 256 | — | 1 |
| AS3601US | IXA-NET - Interconnected Associates (IXA) Inc. | 256 | 1 | 2 |
| AS400723US | SPS-US-MSP-DC1 - SPS Commerce, Inc. | 256 | — | 1 |
| AS393822US | POSDNET - Port of San Diego | 256 | — | 1 |
| AS33344US | PUBLIC-AS - American Petroleum Institute | 256 | — | 1 |
| AS398922US | JDSL-ASN - Jubilee Data Systems, LLC | 256 | 1 | 2 |
| AS26841US | HIDDEN-VILLA-RANCH - Hidden Villa Ranch | 256 | — | 1 |
| AS14471US | AUTOMATED-MEDIA-INC - Automated Media, Inc. | 256 | — | 1 |
| AS10517US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS10517 - The Bank of New York Mellon Corporation | 256 | — | 1 |