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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 |
| 30K |
| — |
| 38 |
| AS17252US | AS2-COLOAM - Colocation America Corporation | 30K | 65.5K | 14 |
| AS26666US | INTERSERVER-LAX - Interserver, Inc | 30K | 987.1K | 64 |
| AS13984US | SD-DATA-CENTER - SD Data Center | 30K | 205.3K | 35 |
| AS19844US | SBA-EDGE-JAX - SBA Edge, LLC | 29.7K | 139.3K | 44 |
| AS399065US | DEFASTLINK - Dixie EPA | 29.7K | 8.2K | 17 |
| AS11643US | EBAY - eBay, Inc | 29.7K | — | 15 |
| AS33152US | KCEC-ASN - Kit Carson Electric Cooperative, Inc | 29.7K | 65.5K | 5 |
| AS3379US | KAISER-NCAL - Kaiser Foundation Health Plan, Inc. | 29.7K | 65.5K | 38 |
| AS3925US | ICO-SV - ICOnetworks | 29.4K | — | 20 |
| AS17385US | ORBITEL - Orbitel Communications, LLC | 29.4K | — | 55 |
| AS132892US | CLOUDFLARE - Cloudflare, Inc. | 29.4K | 287 | 52 |
| AS22593US | BCBSNC-AS - Blue Cross and Blue Shield of North Carolina | 29.4K | — | 6 |
| AS13778US | JOHNSON-AND-JOHNSON - Johnson & Johnson | 29.4K | 1.3M | 28 |
| AS54607US | APOG-DFW - Apogee Telecom Inc. | 29.4K | — | 41 |
| AS11961US | MIDRIVERS - Mid-Rivers Telephone Cooperative | 29.2K | 65.5K | 8 |
| AS26724US | NEPTEL-AS - The North-Eastern Pennsylvania Telephone Company | 29.2K | — | 16 |
| AS15129US | GENESEO-IL - Geneseo Telephone Company | 29.2K | 65.5K | 15 |
| AS35928US | BECKMAN-COULTER-ASN - BECKMAN COULTER, INC. | 29.2K | — | 90 |
| AS393581US | WAYNENET - Wayne County Regional Educational Service Agency | 29.2K | — | 12 |
| AS218930US | NEXDC NEXDC INC | 29.2K | — | 19 |
| AS401678US | BISECT-HOSTING - BisectHosting | 28.9K | — | 63 |
| AS15221US | STRATUSIQ - StratusIQ | 28.9K | 65.5K | 17 |
| AS32400US | HWSERVICES-32400 - Ntirety, Inc. | 28.9K | — | 6 |
| AS53959US | PSDATA - Public Service Data, Inc. | 28.9K | 65.5K | 57 |
| AS393886US | LEASEWEB-USA-MIA - Leaseweb USA, Inc. | 28.9K | 5.3M | 47 |
| AS14928US | ADAMS-CATV - PenTeleData Inc. | 28.9K | 65.5K | 9 |
| AS20394US | MASHELL-TELECOM - Rainier Connect | 28.9K | 131.1K | 8 |
| AS31841US | NKTC - NEW KNOXVILLE TELEPHONE COMPANY | 28.9K | 65.5K | 10 |
| AS395437US | HIGHLANDTEL - Highland Communications LLC | 28.9K | — | 103 |
| AS19021US | BTC-BROADBAND - BTC Broadband Inc. | 28.9K | — | 15 |
| AS399673US | TRI-COGO - Tri-CoGo | 28.7K | — | 30 |
| AS10843US | AITNET - Advanced Internet Technologies | 28.7K | 1 | 4 |
| AS19830US | RTC-RINGGOLD-GA - The Ringgold Telephone Company | 28.7K | 65.5K | 6 |
| AS26760US | SKTC-NET - Southern Kansas Telephone Co., Inc. | 28.7K | — | 43 |
| AS396168US | THINKBIGNETWORKS-KC - ThinkBig Networks, LLC | 28.7K | — | 50 |
| AS46595US | PVTN - Penasco Valley Telecommunications | 28.7K | 1.1M | 48 |
| AS7819US | GLOBAL-IP-NETWORKS - Global IP Networks INC | 28.7K | 24.6K | 27 |
| AS36295US | FLORIDA-HIGH-SPEED-INTERNET - Florida High Speed Internet | 28.7K | 131.1K | 66 |
| AS396073US | MAJESTIC-HOSTING-01 - Majestic Hosting Solutions, LLC | 28.7K | 260 | 68 |
| AS13588US | PAYCHEX - Paychex Inc. | 28.7K | — | 34 |
| AS18454US | AUGSBURG - Augsburg University | 28.7K | — | 3 |
| AS399252US | CVECFIBER-01 - CVECFIBER | 28.7K | 55.3K | 36 |
| AS6256US | CELLCO-PART - Verizon Business | 28.7K | — | 97 |
| AS393398US | ASN-DIS - 1515 ROUNDTABLE DR PROPERTY, LLC | 28.4K | 65.5K | 47 |
| AS33734US | MPW-MACHLINK-NET - Muscatine Power and Water | 28.4K | — | 49 |
| AS54501US | SVEC-1 - Sequachee Valley Electric Cooperative | 28.4K | 98.3K | 36 |