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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 | 21,171 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS12184US | FORRESTER-RESEARCH - Forrester Research | 512 | — | 2 |
| AS31965US | COYOTE-LOGISTICS - COYOTE LOGISTICS LLC | 512 | — | 2 |
| AS36580US | HATV-DC - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS1082US | HBH-ASN-1 - Zenith American Solutions, Inc. | 512 | — | 2 |
| AS36598US | RADIANT-SOLUTIONS - Radiant Solution Providers | 512 | 4.1K | 2 |
| AS18758US | ADRECOM - Adrecom | 512 | — | 2 |
| AS400086US | OUHBGPAS1 - OU Medicine, Inc. | 512 | — | 1 |
| AS62494US | YELLOWSTONE-FIBER - UTOPIA | 512 | 1 | 2 |
| AS152879US | PHOENIXNAP-AS-TPE0 - PhoenixNAP LLC | 512 | 257 | 4 |
| AS36851US | DIALINTERNET - DialAmerica Marketing, Inc | 512 | — | 2 |
| AS33347US | NAVICENT - NAVICENT HEALTH | 512 | — | 2 |
| AS12163US | AMHERST-HOLDINGS - Amherst Holdings LLC | 512 | — | 2 |
| AS397415US | PURE-STORAGE-ENG - Pure Storage, INC. | 512 | 22 | 24 |
| AS54143US | HEHENET - i9 Technologies | 512 | 65.5K | 3 |
| AS400458US | FEXTEL-DC - ViciDial Group | 512 | 1 | 3 |
| AS30152US | PALA-BAND-OF-MISSION-INDIANS - Pala Band Of Mission Indians | 512 | — | 2 |
| AS393798US | CPSHR-NET - Cooperative Personnel Services | 512 | — | 1 |
| AS394137US | SCUHS - Southern California University of Health Sciences | 512 | — | 1 |
| AS400964US | COHC - College of the Holy Cross | 512 | — | 2 |
| AS3788US | TEXAS-DOT - Texas Department of Transportation | 512 | — | 2 |
| AS16784US | INETZ - Inetz Media Group | 512 | — | 1 |
| AS30018US | RED-GAP-COMMUNICATIONS-INC - Red Gap Communications, Inc. | 512 | — | 2 |
| AS54152US | BSC-BRANCHOFFICE01 - Blue Shield of California | 512 | — | 2 |
| AS19845US | PEABODY-COAL-ASN - Peabody Holding Company, LLC | 512 | — | 2 |
| AS46557US | DWS-UAE - Disney Worldwide Services, Inc. | 512 | — | 2 |
| AS396388US | WOOFY-AS - Woofy | 512 | 1 | 3 |
| AS397719US | TECHSTYLE-FASHION-GROUP - TechStyle, Inc. | 512 | — | 2 |
| AS54262US | US-CERT-01 - CERTUSOFT INC | 512 | — | 2 |
| AS15266US | THE-TEAM-COMPANIES - Cast & Crew LLC | 512 | — | 2 |
| AS396224US | NSF-INTERNATIONAL - NSF International | 512 | — | 2 |
| AS32284US | CORP-BASHAS-AS1 - Bashas' Inc. | 512 | — | 2 |
| AS401262US | TREDYFFRIN-EASTTOWN-SD - Tredyffrin/Easttown School District | 512 | — | 2 |
| AS46658US | TRANSMON119 - Transmontaigne Product Services, Inc. | 512 | — | 2 |
| AS36437US | SCC-44 - County of Santa Cruz | 512 | — | 2 |
| AS46542US | AVIDTE - Avid Technology, Inc. | 512 | — | 2 |
| AS14932US | ISC - C1CX | 512 | — | 2 |
| AS394575US | AFS-IEP - Accenture Federal Services LLC | 512 | — | 2 |
| AS33463US | CITIGROUP-GLOBAL-ANYCAST-DNS - Citigroup Inc. | 512 | — | 2 |
| AS399187US | COB-MN-US - City of Bloomington | 512 | — | 2 |
| AS36762US | WMOR-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS17237US | WPG-CONSULT - Walsh Patel Group Consulting, LLC | 512 | — | 2 |
| AS397868US | WHITEHAT-US-PROD-2 - Synopsys Inc. | 512 | — | 2 |
| AS16927US | IHOPKC - IHOPKC | 512 | — | 2 |
| AS397493US | NINECLOUD - Ninecloud Services, Inc. | 512 | 8 | 10 |
| AS398005US | TGNA-WATN - TEGNA Inc. | 512 | — | 2 |
| AS12053US | TRUMARK-FINANCIAL - TruMark Financial Credit Union | 512 | — | 2 |