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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 68.2M |
| 345 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,107 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,573 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| 128.5K |
| 16.9M |
| 40 |
| AS16399US | FIRSTCOMM-AS2 - First Communications LLC | 128.5K | 28.7K | 27 |
| AS53813US | ZSCALER-INC - ZSCALER, INC. | 128.5K | 5.9K | 364 |
| AS14537US | CL-1379-14537 - Continent 8 LLC | 128K | 196.6K | 191 |
| AS63911US | NETACTUATE-AS-AP - NetActuate, Inc | 127.5K | 91 | 248 |
| AS46562US | PERFORMIVE - Performive LLC | 127K | 31 | 295 |
| AS36183US | AKAMAI-AS - Akamai Technologies, Inc. | 126.7K | 1.6K | 2,142 |
| AS209372US | WSTelecom_Customers WS Telecom Inc | 126.5K | 3.2M | 304 |
| AS1493US | DNIC-ASBLK-01492-01493 - Headquarters, USAISC | 126.5K | — | 32 |
| AS13415US | FIRSTDIGITAL - FirstDigital Communications, LLC | 126.2K | 1.2M | 47 |
| AS395624US | GACORP - General Atomics | 126K | — | 10 |
| AS399077US | TERAEXCH - Tcloudnet | 126K | 518 | 498 |
| 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 | 123.9K | 1 | 6 |
| AS16904US | ARVIG-16904 - Arvig Enterprises Inc. | 123.4K | 1.1M | 34 |
| AS203US | CENTURYLINK-LEGACY-LVLT-203 - Level 3 Parent, LLC | 123.3K | — | 171 |
| AS54103US | MODMC-54103-AS - MOD Mission Critical, LLC | 123.1K | 7 | 464 |
| AS11696US | NBS11696 - Fusion, LLC | 122.6K | 65.7K | 199 |
| AS16481US | BABSON-GNET - Babson College | 122.6K | — | 76 |
| AS35847US | AS-EFTL - Ezee Fiber | 122.4K | 879 | 71 |
| AS1448US | UNITED-BROADBAND - United Cooperative Services | 121.9K | 65.5K | 13 |
| AS398113US | GATEWAY-FIBER - Gateway Fiber LLC | 121.3K | 5 | 79 |
| AS15227US | LUMOS - LUMOS Networks, Inc. | 120.6K | — | 14 |
| AS4196US | WELLSFARGO-4196 - Wells Fargo Bank, N.A. | 120.3K | 48 | 88 |
| AS19679US | DROPBOX - Dropbox, Inc. | 119.6K | 346 | 72 |
| AS6569US | NATIONWIDEASN - Nationwide Mutual Insurance Company | 118.8K | — | 13 |
| AS26818US | COL-PUB-SCHOOLS-OH - Columbus Public Schools | 118.8K | — | 12 |
| AS11509US | TIERZERO-AS11509 - Tierzero | 118.5K | 4.1K | 15 |
| AS344US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 117K | 256 | 185 |
| AS36327US | VINAKOM - VINAKOM COMMUNICATIONS | 116.7K | 65.5K | 22 |
| AS2648US | NOAA-BOULDER - National Oceanic and Atmospheric Administration | 116.7K | 261 | 21 |
| AS15164US | UPNLLC - Unite Private Networks LLC. | 116.7K | 71.7K | 162 |
| AS12007US | RAYASN - Raytheon Company | 116.5K | — | 62 |
| AS26827US | EPBTELECOM - EPB Fiber Optics | 115.7K | 65.5K | 23 |
| AS25789US | LMU - Loyola Marymount University | 115.7K | — | 6 |
| AS11878US | TZULO - tzulo, inc. | 115.5K | 130.3K | 226 |
| AS46512US | UT-MEDICAL-CENTER - University of Tennessee Medical Center | 115.2K | — | 10 |
| AS160US | U-CHICAGO-AS - The University of Chicago | 115.2K | 2 | 8 |
| AS5760US | BIDDEFORD1 - Biddeford Internet Corp | 115.2K | 65.5K | 21 |
| AS36368US | OBERLIN-COLLEGE - Oberlin College | 114.9K | — | 4 |
| AS19070US | EIUNET - Eastern Illinois University | 114.7K | — | 3 |
| AS40102US | AS-MONTGOMERY-COLLEGE-AS1 - Montgomery College | 114.7K | — | 4 |
| AS393442US | UNITED-FIBER - United Electric Cooperative | 114.4K | — | 99 |
| AS400427US | IQ-FIBER - IQ Fiber | 114.2K | 73.7K | 31 |
| AS3762US | INSTINET-AS - Instinet | 113.7K | — | 69 |