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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 4.6K |
| 3 |
| 13 |
| AS16645US | EPIQSYSTEMS - EPIQ Systems, Inc | 4.6K | — | 11 |
| AS394867US | VC-ASN-01 - Velocity Communications, Inc. | 4.6K | — | 4 |
| AS54713US | CAMC - CAMC Health System, Inc. | 4.6K | — | 4 |
| AS16492US | DECHERT-LLP - Dechert LLP | 4.6K | — | 3 |
| AS29867US | FAIRFIELD-UNIVERSITY - Fairfield University | 4.6K | — | 3 |
| AS18795US | ULV-AS - University of La Verne | 4.6K | — | 3 |
| AS13443US | LINKEDIN - LinkedIn Corporation | 4.6K | 504 | 77 |
| AS26054US | THRYV - Thryv | 4.6K | — | 13 |
| AS33149US | FFASTFILL-INC - Ffastfill Inc. | 4.6K | — | 3 |
| AS398700US | CACTUS-INTERNATIONAL-INC - Cactus International, Inc. | 4.6K | 65.5K | 14 |
| AS401443US | WAP-AC - WAP.AC LLC | 4.6K | — | 16 |
| AS397325US | DATACANOPY - Data Canopy Colocation, LLC | 4.6K | — | 18 |
| AS32681US | BAM-AS-00 - Bay Area Mesh Inc. | 4.6K | 1 | 4 |
| AS21581US | M5HOSTING - M5 Computer Security | 4.6K | 65.6K | 22 |
| AS63010US | CITY-OF-LAGRANGE-GEORGA - City of LaGrange, Georgia | 4.6K | — | 18 |
| AS11170US | ROLLERNETWORK - Roller Network LLC | 4.6K | 65.5K | 9 |
| AS394170US | SUSQUEHANNA-UNIVERSITY - Susquehanna University | 4.6K | — | 3 |
| AS32135US | SAKURA-EYEBALL - SAKURA LTD. | 4.6K | — | 18 |
| AS27277US | SPACEX - Space Exploration Technologies Corporation | 4.6K | — | 15 |
| AS27011US | XSR-ASN - XM Satellite Radio | 4.6K | — | 17 |
| AS46193US | SKYWERX - Visionary Communications LLC | 4.6K | — | 15 |
| AS398232US | CONNECTANZA - Anza Electric Cooperative Inc | 4.6K | — | 7 |
| AS31783US | SKRC-SOUTH01 - SKYRIDER COMMUNICATIONS LLC | 4.6K | — | 13 |
| AS395357US | RIVIERA-CELLULAR-AND-TELECOMMUNICATIONS-INC - Riviera Telephone Company, Inc. | 4.6K | — | 11 |
| AS22604US | DSS-MT - Disney Streaming Services | 4.6K | 17 | 35 |
| AS54676US | MDC-AS01 - Metro Data Center LLC | 4.6K | — | 4 |
| AS33371US | WMA-BEVERLY-HILLS - WME | 4.4K | — | 17 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.4K | 109 | 121 |
| AS14369US | NMAX - Nmax | 4.4K | 65.5K | 18 |
| AS18555US | THE-ART-INST - The Art Institute of Chicago | 4.4K | — | 2 |
| AS20014US | WRCTC-NET-1 - West River Cooperative Telephone Company | 4.4K | — | 7 |
| AS19927US | NHMCCD - Lone Star College System District | 4.4K | — | 11 |
| AS399469US | RELIABLE-NETS - Reliable Nets LLC | 4.4K | — | 2 |
| AS22077US | RENAISSANCE-TECH - Renaissance Technologies Corp. | 4.4K | — | 11 |
| AS7810US | CMPC - CompuCom Systems, Inc. | 4.4K | — | 2 |
| AS40801US | LEWISU-ROMEOVILLE - Lewis University | 4.4K | — | 2 |
| AS46997US | NATOLAB - Black Mesa Corporation | 4.4K | 1.2K | 38 |
| AS18647US | ACCEL-AS - Accel Net, Inc. | 4.4K | — | 2 |
| AS4243US | WELLSFARGO-4243 - Wells Fargo Bank, N.A. | 4.4K | — | 14 |
| AS36231US | TEMPEST-HOSTING - Tempest Hosting, LLC | 4.4K | 65.6K | 44 |
| AS397394US | GCBB - Gold Coast Broadband | 4.4K | — | 17 |
| AS19600US | NCH-AS - Nationwide Children's Hospital | 4.4K | — | 2 |
| AS46479US | PREFERRED-NETWORKS - Pyramid.Net | 4.4K | — | 5 |
| AS394077US | LIFEBRIDGEHEALTH - Lifebridge Health, Inc. | 4.4K | — | 11 |
| AS5982US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 4.4K | — | 2 |
| AS6199US | COOPERUNION - Cooper Union | 4.4K | — | 2 |