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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.5K |
| — |
| 3 |
| AS393507US | GUSHISYS - Gush I Systems | 1.5K | 16 | 6 |
| AS23049US | AS23049 - Ecolab, Inc. | 1.5K | — | 6 |
| AS402221US | NET - Exaserver LLC | 1.5K | — | 6 |
| AS18854US | RADWEB-NA-01 - RadWeb, LLC | 1.5K | 16.4K | 9 |
| AS399247US | FASTLINK-01 - Fastlink Communications LLC. | 1.5K | — | 2 |
| AS53983US | CORKAT-DATA-SOLUTIONS - CorKat Data Solutions, LLC | 1.5K | — | 2 |
| AS62620US | IRVINECO - THE IRVINE COMPANY LLC | 1.5K | — | 3 |
| AS35997US | UNITED-FINANCIAL-SERVICES - UFS LLC | 1.5K | — | 6 |
| AS22436US | SONICNETINC - SonicNet Inc. | 1.5K | — | 5 |
| AS62775US | INTERNET2-ISS - Internet2 | 1.5K | 3 | 6 |
| AS393385US | NVI-SHARED - National Vision, Inc. | 1.5K | — | 6 |
| AS400069US | SONICSPECTRUM-01 - SonicPCS | 1.5K | — | 6 |
| AS2729US | MG-431-2729 - One Call | 1.5K | — | 3 |
| AS11408US | KWE-AS - Kintetsu World Express | 1.5K | — | 6 |
| AS20414US | HWASN - Hunton Andrews Kurth LLP | 1.5K | — | 6 |
| AS62671US | UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure | 1.5K | — | 3 |
| AS63290US | QCSTE-AS - QCSTelecom, Inc. | 1.5K | 65.5K | 4 |
| AS26842US | MFXCHANGE US INC - MFXCHANGE US, INC | 1.5K | — | 6 |
| AS14224US | TAMPNET-US - Tampnet Inc | 1.5K | — | 3 |
| AS19997US | PENNNATIONALINSURANCE - Penn National Insurance | 1.5K | — | 6 |
| AS36283US | AS-RIVERWAVE - Riverwave LLC | 1.5K | 69.6K | 5 |
| AS393769US | LEANDER-ISD-AS1 - Leander Independent School District | 1.5K | — | 2 |
| AS399631US | STREAMICAN - StreamICan | 1.5K | — | 6 |
| AS55052US | KMBSU-AS - Konica Minolta Business Solutions U.S.A., Inc. | 1.5K | — | 3 |
| AS32323US | EQUINIX-EC-TR - Equinix, Inc. | 1.5K | — | 5 |
| AS55067US | CHILDRENSMN - Childrens Hospitals and Clinics of Minnesota | 1.5K | — | 3 |
| AS402257US | HUBSFERA - Hubsfera LLC | 1.5K | — | 6 |
| AS16877US | TAS-TDC-SDC-WEB - Global Payments Inc. | 1.5K | — | 5 |
| AS53605US | PHOEN-56 - PhoenixNAP LLC | 1.5K | — | 2 |
| AS401182US | APPLIEDDIGITAL - Applied Digital Corporation | 1.5K | — | 6 |
| AS40782US | VIVINT-PLATFORM - Vivint, Inc. | 1.5K | — | 3 |
| AS396535US | ADJUST-US - adjust | 1.5K | 1 | 3 |
| AS198420US | Netly Netly LLC | 1.5K | — | 6 |
| AS13352US | MTC-ASN - Mark G Thomas, Sole Proprietorship | 1.5K | 256 | 7 |
| AS20137US | USAGM-LAN - USAGM | 1.5K | — | 6 |
| AS397279US | NIMBUS-SOLUTIONS - Nimbus Solutions | 1.5K | — | 6 |
| AS36673US | VECTREN63-64-13-1 - Vectren Utility Holdings, Inc. | 1.5K | — | 6 |
| AS11756US | CHLA - Children's Hospital Los Angeles | 1.5K | — | 4 |
| AS26187US | ADVENTURECK - ADVENTURECK | 1.5K | — | 6 |
| AS395591US | ESS-CORP - Election systems & Software | 1.5K | — | 6 |
| AS16886US | HEB-AS-PRIMARY - H-E-B, LP | 1.5K | — | 6 |
| AS7153US | ISO-NE - ISO New England Inc. | 1.5K | — | 5 |
| AS54799US | OTC-MARKETS-GROUP - OTC Markets Group Inc | 1.5K | — | 5 |
| AS7856US | EPPROACH-0 - Epproach Communications, LLC | 1.5K | — | 6 |
| AS54552US | SP-US-EAST1 - Samaritan's Purse | 1.5K | — | 3 |
| AS26949US | HARBOR-COMMUNICATIONS-LLC - Harbor Communications, LLC | 1.5K | 65.5K | 4 |