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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 |
| 22.8K |
| — |
| 7 |
| AS25844US | SKADDEN1 - Skadden, Arps, Slate, Meagher & Flom LLP | 22.8K | — | 11 |
| AS396026US | DEASIL-NETWORKS - Deasil Networks | 22.8K | 768 | 36 |
| AS14174US | NCKCN - North Central Kansas Community Network Co. | 22.8K | 65.5K | 12 |
| AS214036US | ULTAHOST-AS Ultahost, Inc. | 22.8K | 1 | 90 |
| AS63399US | DIALPAD - Dialpad, Inc. | 22.5K | 527.6K | 49 |
| AS46957US | MPTELCO-1 - Medicine Park Telephone Company | 22.5K | — | 31 |
| AS1421US | WANSEC - WANSecurity, Inc. | 22.5K | 12.3K | 41 |
| AS53848US | MRTC-WLBTKY - Mountain Telephone | 22.5K | 65.5K | 9 |
| AS6185US | APPLE-AUSTIN - Apple Inc. | 22.5K | 51 | 100 |
| AS15290US | ZAYO-CAN-15290 - Zayo Bandwidth | 22.5K | 65.6K | 104 |
| AS29770US | THE-INTERNET-SUBWAY - The Internet Subway | 22.5K | 256 | 30 |
| AS16559US | REALCONNECT-01 - RealConnect, Inc | 22.5K | 65.5K | 22 |
| AS23481US | HCTC-LINK1 - Hill Country Telephone Cooperative, Inc. | 22.5K | — | 25 |
| AS21981US | GOEASTON - Easton Utilities Commission | 22.5K | 65.5K | 8 |
| AS21921US | NEW-HOPE-TELEPHONE-COOPERATIVE - New Hope Telephone Cooperative | 22.3K | 65.5K | 24 |
| AS22952US | CHCCW - Chaparral CableVision | 22.3K | — | 43 |
| AS31972US | EMGINECONCEPT-01 - Emagine Concept, Inc. | 22.3K | — | 53 |
| AS402506US | ZENIX - Zenixcloud | 22.3K | — | 44 |
| AS7086US | MISSISSIPPI-STATE-GOVERNMENT - Mississippi, Department of Information Technology Services (ITS) | 22.3K | — | 9 |
| AS27283US | RJF-INTERNET - Raymond James Financial, Inc. | 22.3K | — | 49 |
| AS3933US | OPEN - Oregon Public Education Network | 22.3K | — | 9 |
| AS32298US | CNSQ-AS32298 - Centersquare | 22.3K | 655.4K | 67 |
| AS399195US | PEG-KR - PEG TECH INC | 22K | — | 16 |
| AS16564US | ADAMS-WELLS-INTERNET - Adamswells Internet | 22K | — | 28 |
| AS14669US | RGTS-NY - Convergeone Unified Technology Solutions, Inc. | 22K | — | 8 |
| AS20231US | TWC-20231-NE-KS-C3 - Charter Communications Inc | 22K | 288 | 9 |
| AS3580US | PLANET - Planet Networks | 22K | 16.8M | 12 |
| AS16724US | WOW-DATACENTER-NET - WideOpenWest Finance LLC | 22K | 65.5K | 43 |
| AS40443US | CDK-GLOBAL - CDK Global, LLC | 22K | — | 20 |
| AS15054US | OMEGA-TX - Northeast Texas Broadband, LLC | 22K | 65.5K | 7 |
| AS32415US | C3-LLC - C3 | 22K | — | 54 |
| AS33302US | D102-COS-1 - Data102 | 22K | 65.5K | 12 |
| AS16880US | AS2-TRENDMICRO-COM - TREND MICRO INCORPORATED | 22K | 2 | 16 |
| AS10381US | SWCP-AS - Southwest Cyberport, Inc. | 22K | 65.5K | 11 |
| AS32354US | UNWIRED - Unwired | 22K | 65.5K | 40 |
| AS7762US | OPENTEXT - Micro Focus | 22K | — | 7 |
| AS17133US | T-FIBER - T-Mobile USA, Inc. | 22K | — | 21 |
| AS19635US | SANDHILL-AS - Sandhill Telephone Cooperative, Inc. | 21.8K | — | 85 |
| AS26380US | MASTER-7-AS - MasterCard Technologies LLC | 21.8K | 6 | 72 |
| AS21557US | CYB-BLK-1 - Cybernet Communications, Inc. | 21.8K | 66.3K | 39 |
| AS7961US | RBC - Raw Bandwidth Communications, Inc. | 21.8K | — | 6 |
| AS27609US | USC-UNIVERSITY-HOSPITAL - USC-University Hospital | 21.8K | — | 45 |
| AS397048US | NU-107-ASN - Newport Utilities | 21.8K | — | 13 |
| AS46841US | FORKNETWORKING - Fork Networking, LLC | 21.8K | 65.5K | 16 |
| AS394417US | AS-SONJ - NJOIT | 21.8K | — | 85 |
| AS8067US | WSCNET-AS - Westfield State University | 21.8K | — | 6 |