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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. | 218M | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| 768 |
| — |
| 3 |
| AS394092US | BCT-CONSUTLING - BCT Consulting Inc. | 768 | — | 3 |
| AS53636US | XERIO - Xerio | 768 | — | 3 |
| AS16968US | AURELIA-TEL - Aurelia Telecom Systems LLC | 768 | — | 2 |
| AS23545US | CENTRICFL-ASN - Centric Fiber Florida, LLC | 768 | 65.5K | 4 |
| AS26043US | NATL-EDU - National Education Association | 768 | — | 3 |
| AS26751US | IGT-AS-26751 - IGT | 768 | — | 3 |
| AS62538US | IPFAIL - ipFail Networks | 768 | 131.1K | 5 |
| AS12073US | CCSINET-1 - Contemporary Computer Services Inc. | 768 | — | 3 |
| AS54949US | NYS-SENATE - New York State Senate | 768 | — | 2 |
| AS54690US | CLU - California Lutheran University | 768 | — | 3 |
| AS54005US | Z-CLOUD - ZPro Solutions | 768 | — | 3 |
| AS46723US | UNLABELED - Unlabeled LLC | 768 | 7 | 10 |
| AS14509US | AS14509 - AMC | 768 | — | 3 |
| AS40420US | SILVERLINESOLUTIONSINC - Silverline Solutions INC. | 768 | — | 2 |
| AS44841US | Egressif Egressif LLC | 768 | 526.6K | 7 |
| AS200074US | ASSWH SN SOLUTIONS LLC | 768 | 1 | 4 |
| AS400791US | EL-CAMINO-HEALTH-01 - El Camino Health | 768 | — | 2 |
| AS32971US | HCC-ASN - Howard Community College | 768 | — | 2 |
| AS16825US | DIRECTLINK - Directlink Technologies Corp. | 768 | — | 3 |
| AS18707US | INTELEMEDIA - Intelemedia Communications, Inc | 768 | — | 3 |
| AS16429US | TGNA-WCSH - TEGNA Inc. | 768 | — | 3 |
| AS25909US | STEVE-MADDEN - Steven Madden, LTD. | 768 | — | 3 |
| AS54270US | LS1 - Light Source 1, Inc | 768 | 65.5K | 4 |
| AS399883US | CODEFORHOST-AS-ARIN - CodeforHost Inc | 768 | 3 | 6 |
| AS23354US | ECHOSTAR-CO - Echostar Purchasing Corporation | 768 | — | 3 |
| AS394622US | EMMIX - Emmix | 768 | — | 3 |
| AS400725US | ZEPHYR-MONITORS-LLC - Zephyr Monitors LLC | 768 | 65.5K | 4 |
| AS19868US | AS-UL-LV - UnitedLayer, LLC | 768 | — | 3 |
| AS14354US | WACHTER-AS1 - Wachter Technology Solutions | 768 | — | 2 |
| AS397787US | MEWUK-NETWORKS - Black Oak Casino | 768 | 4.1K | 3 |
| AS14032US | FOOT-LOCKER-CORPORATE-SERVICES - Foot Locker Corporate Services, Inc | 768 | 1 | 4 |
| AS398698US | NETASSIST - NETASSIST LLC | 768 | 66K | 6 |
| AS20282US | NYFIX20282 - Broadridge Trading and Connectivity Solutions Inc. | 768 | — | 3 |
| AS14306US | GLAXOSMITHKLINE - GlaxoSmithKline | 768 | — | 3 |
| AS40527US | CU-CR-AS - CONSUMERS UNION OF UNITED STATES, INC. | 768 | — | 3 |
| AS396462US | LKQ-CORP - LKQ Corporation | 768 | — | 3 |
| AS53499US | MCLEOD-HEALTH - McLeod Health | 768 | — | 3 |
| AS398388US | ELAUWIT-CONNECTION - Elauwit Connection Inc. | 768 | — | 3 |
| AS40956US | NORTHWOOD-UNIVERSITY - Northwood University | 768 | — | 3 |
| AS21711US | MAXTEL-USA-01 - Maxtel USA Corp | 768 | — | 3 |
| AS30312US | NETGATE - Netgate | 768 | 17 | 5 |
| AS62735US | LA-CARE-ASN - L.A. CARE COMMUNITY HEALTH | 768 | — | 3 |
| AS396209US | AS-EP-01-PHL - Enclara Pharmacia, Inc. | 768 | — | 3 |
| AS55217US | TRIWEST-HA-DC1 - TRIWEST HEALTHCARE ALLIANCE | 768 | — | 2 |
| AS22157US | AS1-A2W - mGage | 768 | — | 3 |
| AS394643US | AS-PHOENIXNAP-AUS1 - PhoenixNAP LLC | 768 | 257 | 4 |