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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS26864US | CSYSTEMS-1 - 4DVISION LLC | — | — | 0 |
| AS26572US | CAMDEN-ASSET-MANAGEMENT - Camden Asset Management | — | — | 0 |
| AS26565US | MDFDOR-ASN - City of Medford | — | — | 0 |
| AS27388US | WNCC-BGP - Western Nebraska Community College | — | — | 0 |
| AS29827US | BROCADE-NMS - Brocade Communications Systems, Inc. | — | — | 0 |
| AS27333US | EBRPD-AS - East Bay Regional Park District | — | — | 0 |
| AS26313US | DCSTORE - DIGITAL CREDS LLC | — | — | 0 |
| AS27612US | CORER-3 - Core-Route | — | — | 0 |
| AS23100US | CT-METROCAST-NET - Breezeline | — | — | 0 |
| AS22563US | COZEN-PHL - Cozen & O'Connor | — | — | 0 |
| AS22367US | JCOM-4 - J2 Cloud Services, LLC | — | — | 0 |
| AS26291US | TELEGO-NET - Tele Go, Inc | — | — | 0 |
| AS19484US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS10709US | NETUSA-AS - Net USA | — | — | 0 |
| AS10567US | TNA - Total Network Access | — | — | 0 |
| AS11524US | SEGN - FirstLight Fiber, Inc. | — | — | 0 |
| AS15186US | FUTUREGRID - Indiana University | — | — | 0 |
| AS11591US | CAPARIO - UnitedHealth Group Incorporated | — | — | 0 |
| AS11274US | ADHOST - TierPoint, LLC | — | — | 0 |
| AS11264US | LIQUIDNET-01 - LIQUIDNET HOLDINGS INC. | — | — | 0 |
| AS397525US | ALPHAONE-AS - Alpha1Servers, LLC | — | — | 0 |
| AS11886US | ALPHALINK - AlphaLink Technologies Inc | — | — | 0 |
| AS19072US | OD-DA - Office Depot, LLC | — | — | 0 |
| AS19020US | COF-EQX-WEST-O365 - Capital One Financial Corporation | — | — | 0 |
| AS21587US | SAI-AS - Salomon Analytics Inc | — | — | 0 |
| AS21762US | ONWARDTECH - Onward Technology, LLC | — | — | 0 |
| AS20358US | GG-SUGARSHACK - SUGAR SHACK, LLC | — | — | 0 |
| AS20192US | SIMWOOD-US - Simwood Inc. | — | — | 0 |
| AS16472US | AS16472 - Cisco Webex LLC | — | — | 0 |
| AS10792US | WEBNETWORLWIDE - WebNet Inc. | — | — | 0 |
| AS30488US | SPRINGS - Springs Industries, Inc. | — | — | 0 |
| AS31970US | LIVESTREAM-USA-1 - Livestream LLC | — | — | 0 |
| AS31792US | PHONEFACTOR-01 - Microsoft Corporation | — | — | 0 |
| AS30705US | FARGO-VOXTELESYS-01 - Voxtelesys LLC | — | — | 0 |
| AS13949US | SLIDE-INC - Google LLC | — | — | 0 |
| AS14229US | LNW-SWITCH-NAP-8 - Light & Wonder, Inc. | — | — | 0 |
| AS13766US | BRADFORD-REGIONAL-MC - Bradford Regional Medical Center | — | — | 0 |
| AS13653US | CIGA - California Insurance Guarantee Association | — | — | 0 |
| AS31796US | SNA-40 - NetOne, Inc | — | — | 0 |
| AS12030US | PACIFIC-ONLINE-PON - Pacific Online, Inc. | — | — | 0 |
| AS15009US | UNISYSASN15009 - Unisys Corporation | — | — | 0 |
| AS14998US | TSI-GC-NETBLK-01 - TSI, Incorporated | — | — | 0 |
| AS14322US | BIGCOMMAND-N01 - BigCommand LLC | — | — | 0 |
| AS14815US | JAXXNET-AS - Jaxx Aerospace & Defense Company | — | — | 0 |
| AS10870US | LINK-1 - Link-1, Inc. | — | — | 0 |
| AS10839US | CIN - Computerese Information Network, Inc. | — | — | 0 |