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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS10590US | BOOKSTACKS - Book Stacks Unlimited | — | — | 0 |
| AS11629US | AVEPOINT-INC-AOS - AvePoint, Inc. | — | — | 0 |
| AS6962US | DTS-EUROPE - Diplomatic Telecommunications Services | — | — | 0 |
| AS6587US | AMICUS-ASN - Amicus Networks | — | — | 0 |
| AS6530US | XENSEI - The Xensei Corporation | — | — | 0 |
| AS7449US | TIOGA-NET - Tioga Communications | — | — | 0 |
| AS7827US | ABII-AS - American Business Information | — | — | 0 |
| AS7308US | SPRINT-PCS - Sprint PCS (Personal | — | — | 0 |
| AS7288US | PBI-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS15308US | B-A-C-S - Verizon Business | — | — | 0 |
| AS5004US | EAGLENET - Eaglenet, Inc. | — | — | 0 |
| AS10645US | APPLIEDINNOVATIONS - Applied Innovations, Inc. | — | — | 0 |
| AS18910US | BIG-SANDY-BROADBAND-INC - Shenandoah Cable Television LLC | — | — | 0 |
| AS5330US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5176US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5233US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5205US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5075US | ASN-ATTGMS - AT&T BMGS | — | — | 0 |
| AS5084US | COGENT-5084 - Cogent Communications, LLC | — | — | 0 |
| AS19027US | XO-ASN11 - Verizon Business | — | — | 0 |
| AS5914US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS27629US | NOAA-NCDC-ERC - National Oceanic and Atmospheric Administration | — | — | 0 |
| AS5833US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4191US | STORTEK-NAT - Oracle Corporation | — | — | 0 |
| AS4169US | ECHNET - Egleston Children's Hospital | — | — | 0 |
| AS3959US | ONEWORLD - One World Telecommunications, Inc. | — | — | 0 |
| AS4005US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS3908US | CENTURYLINK-ASIA-LEGACY-QWEST - CenturyLink Communications, LLC | — | — | 0 |
| AS21827US | CALIX-TX-DAL - Calix, Inc. | — | — | 0 |
| AS20158US | BOKU-00 - boku, inc. | — | — | 0 |
| AS21560US | INFINITE-CAMPUS-DC3 - Infinite Campus, Incorporated | — | — | 0 |
| AS19984US | PATTERSON-UTI - Patterson-UTI Management Services, LLC | — | — | 0 |
| AS19973US | WBS-JAN-1 - Verizon Business | — | — | 0 |
| AS22086US | AMERICAN-CENTRAL-GAS - American Central Gas Technologies, Inc | — | — | 0 |
| AS19484US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS22212US | INTERNAP-PEERING-NETWORK - Unitas Global | — | — | 0 |
| AS22202US | CONFIRMIT - Confirmit, Inc. | — | — | 0 |
| AS53744US | INTELLYS-TX1 - Intellys Corporation | — | — | 0 |
| AS21880US | ZENDESK-NETWORK-ASN - Zendesk, Inc. | — | — | 0 |
| AS21642US | BUFFALO-ATL - Buffalo Studios | — | — | 0 |
| AS21587US | SAI-AS - Salomon Analytics Inc | — | — | 0 |
| AS18680US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS16945US | CIMCO4 - First Communications LLC | — | — | 0 |
| AS16748US | COMCAST-TELECOMM-4 - Comcast Cable Communications, LLC | — | — | 0 |
| AS16690US | ANADARKO - Occidental Petroleum Corporation | — | — | 0 |
| AS19000US | CBSI-4 - CBS Interactive Inc. | — | — | 0 |