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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 |
| TECPRESSO-NET - TECPRESSO INC. |
| 256 |
| 256 |
| 2 |
| AS15079US | IONIC-AS - Ionic Capital Management LLC | 256 | — | 1 |
| AS30626US | EAMC-INET - East Alabama Medical Center | 256 | — | 1 |
| AS11813US | NATIXIS-NORTH-AMERICA-LLC - Natixis North America LLC | 256 | — | 1 |
| AS400986US | ADSYSTECH-AS-01 - Adsystech, Inc. | 256 | — | 1 |
| AS400855US | AVD-PRINCETON - Advantage Voice & Data, LLC | 256 | — | 1 |
| AS31948US | HQ - Santa Ana Star Casino Hotel | 256 | — | 1 |
| AS394525US | DF-INTERNET-TX - Dean Foods Company | 256 | — | 1 |
| AS5638US | BREWER-SCIENCE - Brewer Science | 256 | — | 1 |
| AS54114US | NJ - 1010Data, Inc. | 256 | — | 1 |
| AS6302US | AGP-AS1 - AG PROCESSING INC., A COOPERATIVE | 256 | — | 1 |
| AS17160US | NCOM-NA - Neofelis Communications | 256 | 4.1K | 3 |
| AS14501US | ENTERPRISECOMMUNITY - Enterprise Business Partners, LLC | 256 | — | 1 |
| AS14766US | UKMAGDIA-BT-LUM - Magnetar Capital LLC | 256 | 1 | 2 |
| AS394183US | TRUSTMARK-BANK - Trustmark Bank | 256 | — | 1 |
| AS399476US | BETHESDA - Bethesda Wireless and Fiber | 256 | — | 1 |
| AS46236US | GUTHRIE-HEALTHCARE-SYSTEMS - Guthrie Healthcare System | 256 | — | 1 |
| AS1380US | MCVEAN - McVEAN Trading & Investments, LLC | 256 | — | 1 |
| AS40734US | LOMBARD-ODIER-1798 - 1798 Global Partners (USA), Corp. | 256 | — | 1 |
| AS46242US | SAFEWAYINS1 - Safeway Insurance Group | 256 | — | 1 |
| AS397910US | TSC - AEG | 256 | — | 1 |
| AS398339US | PRIME-NET-15-CA - PrimeNet, Inc | 256 | — | 1 |
| AS14748US | BIG5CORP - Big 5 Corp. | 256 | — | 1 |
| AS36602US | WESTWOODONE - Dial Global | 256 | — | 1 |
| AS395630US | LCHSASN - Legacy Community Health Services | 256 | — | 1 |
| AS400977US | JCSMH-ASN-01 - Schneck Medical Center | 256 | — | 1 |
| AS395353US | RRCC - Red River Computer Co., Inc. | 256 | — | 1 |
| AS31999US | LAKESUMTERSTATECOLLEGE - Lake Sumter State College | 256 | — | 1 |
| AS54245US | CITYOFDURANGO - City of Durango | 256 | — | 1 |
| AS401754US | HAMKING - Double Dog Adventures, LLC | 256 | 256 | 2 |
| AS30156US | BDG-TECHNOLOGIES - BDG Technologies LLC | 256 | — | 1 |
| AS398160US | PUBLIC-BGP-01 - CompX Security Products, Inc. | 256 | — | 1 |
| AS393334US | CCSD-ASN-201 - Camden City School District | 256 | — | 1 |
| AS17053US | ACCEL-COMM - Accel Communications LLC | 256 | 4.1K | 2 |
| AS13599US | 13599 - Eisai Inc. | 256 | — | 1 |
| AS397898US | PTGSERVICES - Power to Grow Services LLC | 256 | — | 1 |
| AS26154US | VOIP-MINUTES-EXCHANGE - VOIP ME | 256 | — | 1 |
| AS11959US | T-CENTER - AEG | 256 | — | 1 |
| AS401456US | DREWUN-01 - Drew University | 256 | — | 1 |
| AS398455US | MERIDIANCC - Meridian Community College | 256 | — | 1 |
| AS14915US | FDBS-BCS - Financial Database Services | 256 | — | 1 |
| AS26631US | GUNN-VAL-HOSP - Gunnison Valley Hospital | 256 | — | 1 |
| AS401891US | UNIVERSAL-BROADBAND-AS - AeroSurf | 256 | — | 1 |
| AS35619US | MHS-331-35619 - Amergis Healthcare Staffing, Inc. | 256 | — | 1 |
| AS398470US | NEMCC - NEMCC | 256 | — | 1 |
| AS32076US | PXDNET - PIONEER NATURAL RESOURCES USA | 256 | — | 1 |
| AS46674US | PUB-ASN - City of Grand Rapids | 256 | — | 1 |