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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 | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| 129.5K |
| 5.3M |
| 100 |
| AS16433US | NCTC-ISP - NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION | 129.3K | 65.5K | 156 |
| AS63911US | NETACTUATE-AS-AP - NetActuate, Inc | 128.5K | 103 | 264 |
| AS16399US | FIRSTCOMM-AS2 - First Communications LLC | 128.5K | 28.7K | 27 |
| AS10835US | VISIONARY - Visionary Communications LLC | 128.5K | 16.9M | 40 |
| AS1493US | DNIC-ASBLK-01492-01493 - Headquarters, USAISC | 128.3K | — | 32 |
| AS14537US | CL-1379-14537 - Continent 8 LLC | 127.7K | 196.6K | 192 |
| AS35847US | AS-EFTL - Ezee Fiber | 126.5K | 895 | 73 |
| AS13415US | FIRSTDIGITAL - FirstDigital Communications, LLC | 126.2K | 1.2M | 47 |
| AS36183US | AKAMAI-AS - Akamai Technologies, Inc. | 126K | 1.6K | 2,137 |
| AS395624US | GACORP - General Atomics | 126K | — | 10 |
| AS23314US | ORLANDOTELCO - Summit Broadband | 125.2K | 65.5K | 121 |
| AS19661US | SUSQ-BALA - Susquehanna International Group, LLP | 124.9K | 1 | 13 |
| AS46844US | SHARKTECH - Sharktech | 124.7K | 147.7K | 422 |
| AS10837US | WELLSFARGO-10837 - Wells Fargo Bank, N.A. | 124.2K | 32 | 86 |
| AS10343US | AS10343 - National Aeronautics and Space Administration | 124.2K | 1 | 7 |
| AS13789US | INTERNAP-BLK3 - Unitas Global | 123.6K | 131.1K | 91 |
| AS12041US | AS-AFILIAS1 - Afilias, Inc. | 123.4K | 225 | 452 |
| AS46562US | PERFORMIVE - Performive LLC | 123.1K | 26 | 276 |
| AS11696US | NBS11696 - Fusion, LLC | 123.1K | 65.7K | 201 |
| AS16904US | ARVIG-16904 - Arvig Enterprises Inc. | 123.1K | 1.1M | 33 |
| AS16481US | BABSON-GNET - Babson College | 122.9K | — | 77 |
| AS15081US | OMNI-FIBER - Omni Fiber | 122.6K | 65.5K | 56 |
| AS21704US | ASN-21704 - New York City Board of Education | 122.6K | — | 24 |
| AS1448US | UNITED-BROADBAND - United Cooperative Services | 121.9K | 65.5K | 13 |
| AS13576US | SDNW-13576 - SDN Communications | 121.9K | 73.7K | 71 |
| AS26577US | BAESYSTEMS - BAE Systems Inc. | 120.8K | — | 15 |
| AS25653US | FORTRESSITX - FortressITX | 120.6K | — | 87 |
| AS15227US | LUMOS - LUMOS Networks, Inc. | 120.6K | — | 14 |
| AS4196US | WELLSFARGO-4196 - Wells Fargo Bank, N.A. | 120.3K | 48 | 88 |
| AS209372US | WSTelecom_Customers WS Telecom Inc | 119.6K | 3.6M | 256 |
| AS6569US | NATIONWIDEASN - Nationwide Mutual Insurance Company | 119.3K | — | 15 |
| AS19679US | DROPBOX - Dropbox, Inc. | 119.3K | 344 | 69 |
| AS15164US | UPNLLC - Unite Private Networks LLC. | 119.3K | 71.9K | 168 |
| AS14235US | STATE-NM-US - State of New Mexico | 118.8K | 65.5K | 180 |
| AS906US | DMIT - DMIT Cloud Services | 118.8K | 11 | 244 |
| AS26818US | COL-PUB-SCHOOLS-OH - Columbus Public Schools | 118.8K | — | 12 |
| AS11509US | TIERZERO-AS11509 - Tierzero | 118.5K | 4.1K | 15 |
| AS36327US | VINAKOM - VINAKOM COMMUNICATIONS | 116.7K | 65.5K | 22 |
| AS400427US | IQ-FIBER - IQ Fiber | 116.7K | 73.7K | 34 |
| AS344US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 116.5K | 256 | 183 |
| AS12007US | RAYASN - Raytheon Company | 116.5K | — | 62 |
| AS11878US | TZULO - tzulo, inc. | 116K | 130.6K | 229 |
| AS25789US | LMU - Loyola Marymount University | 115.7K | — | 6 |
| AS26827US | EPBTELECOM - EPB Fiber Optics | 115.5K | 65.5K | 22 |
| AS160US | U-CHICAGO-AS - The University of Chicago | 115.2K | 2 | 8 |
| AS32133US | AS-TING-BACKBONE - Ting Fiber Inc. | 115.2K | 84K | 63 |