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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 |
| 9.7K |
| 1 |
| 5 |
| AS26734US | PWR-NET - Shelby Electric Cooperative | 9.7K | — | 20 |
| AS26967US | DCSL-6-26967 - Sangoma US Inc. | 9.7K | 2 | 18 |
| AS35950US | VITNA-GSO - Volvo Group North America, Inc. | 9.7K | — | 30 |
| AS393796US | GBTA-ASN - Golden Belt Telephone | 9.7K | 65.5K | 16 |
| AS26395US | JOHNSON-CONTROLS - Johnson Controls Inc | 9.7K | — | 35 |
| AS19738US | ASSURANT-ATL01INET - Assurant, Inc. | 9.7K | 2 | 25 |
| AS15116US | PITT-STATE - Pittsburg State University | 9.7K | 64 | 5 |
| AS26167US | ASN-MARKLEY - Markley Boston LLC | 9.7K | 1 | 29 |
| AS395973US | GOOGLE-2 - Google LLC | 9.7K | 20 | 57 |
| AS30088US | GC-852-30088 - GTHost | 9.7K | — | 38 |
| AS121US | DNIC-AS-00121 - United States Department of Defense (DoD) | 9.7K | — | 6 |
| AS15139US | PANASONIC - Panasonic Corporation of North America | 9.7K | — | 14 |
| AS17088US | CURRENEX - Currenex, Inc. | 9.7K | — | 37 |
| AS917US | MISAKA - Misaka Network, Inc. | 9.7K | 13.6K | 41 |
| AS32308US | 8X8-AS - 8x8, Inc. | 9.7K | — | 23 |
| AS12052US | VFC - VF Services, Inc. Information Technology Services | 9.7K | — | 24 |
| AS33099US | DTSFIBER - DTS Fiber | 9.7K | 17 | 38 |
| AS13806US | NCRCORP - NCR Voyix Corporation | 9.7K | — | 38 |
| AS46853US | SWTEXAS - Southwest Texas Communications | 9.7K | — | 15 |
| AS14929US | IQNT-VIT - Inteliquent, inc. | 9.7K | — | 31 |
| AS1848US | AS1848 - National Aeronautics and Space Administration | 9.7K | 1 | 26 |
| AS393262US | TODYL-CLOUD - Todyl, Inc. | 9.7K | — | 38 |
| AS15293US | ASN-ISS-ATL - IBM | 9.7K | — | 4 |
| AS10506US | EVERGREENPS - Evergreen Public Schools | 9.7K | — | 5 |
| AS394868US | GLN-LOOP - Greenlight Networks, LLC | 9.7K | 65.5K | 29 |
| AS16826US | JCCC - Johnson County Community College | 9.7K | — | 8 |
| AS4917US | AMDOCS-AS - AMDOCS Inc. | 9.7K | — | 21 |
| AS13654US | KC-WEB-LLC - KC Web, Inc. | 9.5K | — | 34 |
| AS7256US | VIACOM-AS - Viacom Inc. | 9.5K | — | 18 |
| AS23126US | CENTURYLINK-CLEC-VARIOUS-SHARED-USE-AND-LOCATIONS - CenturyLink Communications, LLC | 9.5K | — | 18 |
| AS11996US | LOBOIS - Lobo Internet Services, Ltd | 9.5K | 65.5K | 5 |
| AS46342US | AJGCO - Arthur J. Gallagher & Co. | 9.5K | — | 21 |
| AS53991US | ACRONIS-53991 - Acronis | 9.5K | 9 | 38 |
| AS11708US | LINKCITY - City of North Kansas City, MO | 9.5K | 65.5K | 6 |
| AS36758US | TRUIST-ASN-36758 - Truist Financial Corporation | 9.5K | — | 35 |
| AS32307US | VIAERO-WIRELESS-GPRS - NE COLORADO CELLULAR INC | 9.5K | 512 | 17 |
| AS55083US | NUMEREX - Numerex Corp | 9.5K | 66K | 8 |
| AS1415US | CHNETWORK - Christus Health | 9.5K | — | 22 |
| AS53586US | WITTE-1 - Wittenberg Telephone Company | 9.5K | — | 23 |
| AS15042US | URBN - Urban Communications, Inc. | 9.5K | — | 5 |
| AS22753US | REDHAT-0 - Red Hat, Inc. | 9.5K | 1 | 8 |
| AS26311US | RANCH-WIFI - Ranch WiFi LLC | 9.5K | — | 27 |
| AS63111US | ACE-US - ACE INA HOLDINGS INC. | 9.5K | — | 29 |
| AS14554US | FIRSTHOP - FirstHop | 9.5K | — | 30 |
| AS30452US | FIRST-NATIONAL-TECHNOLOGY-SOLUTONS - First National Technology Solutions, Inc. | 9.5K | — | 6 |
| AS12094US | SISTERLAKESCABLE - Sister Lakes Cable | 9.5K | — | 5 |