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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 |
| 25.1K |
| 257 |
| 81 |
| AS13499US | CH-ENT-DC-IL - NEW CCH, LLC | 25.1K | — | 8 |
| AS400754US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 25.1K | — | 13 |
| AS8002US | STEALTH - Stealth Communications Services, LLC | 25.1K | 65.5K | 5 |
| AS396006US | SPITWSPOTS-HOM - SPITwSPOTS | 25.1K | — | 50 |
| AS401764US | PURDUE-NW - Purdue University | 25.1K | — | 4 |
| AS1265US | SAINT-MARYS-AS - Saint Mary's College | 25.1K | — | 4 |
| AS395461US | APOG-AUSTIN - Apogee Telecom Inc. | 25.1K | 2 | 36 |
| AS8018US | VEL-AS - Velocity Networks, Inc. | 25.1K | — | 22 |
| AS27611US | STARRY-NY - Starry, Inc. | 25.1K | — | 9 |
| AS394838US | PULSE - Pulse | 25.1K | 65.5K | 6 |
| AS26919US | ASN-CBCBH - Giggle Fiber | 25.1K | — | 28 |
| AS40410US | USFRCS-BGP - FRIT | 24.8K | — | 67 |
| AS21719US | CHL - CHL | 24.8K | — | 20 |
| AS395439US | JECNET - Jackson Electric Cooperative | 24.8K | 65.5K | 4 |
| AS36728US | EMERYTELCOM - Emery Telcom | 24.8K | 1M | 9 |
| AS26794US | DCN-AS - Dakota Carrier Network | 24.8K | 65.5K | 5 |
| AS4549US | ESPN-AS - ESPN, Inc. | 24.8K | — | 40 |
| AS393713US | ALL-POINTS-BROADBAND-5 - All Points Broadband | 24.8K | 139.3K | 24 |
| AS7268US | ATHENET - Athenet Internet Services | 24.6K | — | 3 |
| AS400439US | CONSOLIDATEDTELCOM-AS - Consolidated Telcom | 24.6K | — | 11 |
| AS397504US | ECOLINK-01 - ecoLINK | 24.6K | — | 4 |
| AS14671US | TACONIC - FairPoint Communications | 24.6K | — | 28 |
| AS394684US | AS-GOLD - GOLD DATA USA INC | 24.6K | 131.1K | 35 |
| AS7871US | SEIDATA - SEI Data, Inc. | 24.6K | 65.5K | 5 |
| AS13860US | LFG - Lincoln National Corporation | 24.6K | — | 26 |
| AS399268US | CVT - Coosa Valley Technologies Inc | 24.6K | — | 6 |
| AS397050US | VELOCITY-01 - The Butler Rural Electric Cooperative Assn., Inc. | 24.6K | — | 41 |
| AS36794US | META SOLUTIONS PIKETON - META Solutions | 24.6K | — | 26 |
| AS38481US | JPMORGAN-TRANSIT-AS-SG-AP - JPMORGAN Singapore | 24.6K | 36 | 9 |
| AS23265US | POCKETINET - Pocketinet Communications, Inc | 24.6K | — | 4 |
| AS54252US | SP-NYJ - Sprious LLC | 24.6K | — | 96 |
| AS12067US | SHAWNEELINK - ShawneeLink Corporation | 24.6K | 65.5K | 7 |
| AS17356US | VERMONT-TELE - Vermont Telephone Company, Inc. | 24.6K | 65.5K | 5 |
| AS21686US | SYSTEMMETRICS-1 - Hawaiian Telcom Services Company, Inc. | 24.6K | — | 4 |
| AS14038US | DRAKE-UNIVERSITY - Drake University | 24.6K | 1 | 36 |
| AS30376US | COLLEGE-OF-ST-SCHOLASTICA - College of St. Scholastica | 24.6K | — | 2 |
| AS18463US | MILLPOND-NET-01 - Mill Pond Networks LLC | 24.6K | 32 | 5 |
| AS36040US | YOUTUBE - Google LLC | 24.4K | 65.6K | 144 |
| AS19406US | TWRS-MA - Towerstream I, Inc. | 24.3K | — | 10 |
| AS10487US | SIMPLENET - Simple Network Communications, Inc | 24.3K | 8.2K | 8 |
| AS64200US | VIVIDHOSTING - VIVID-HOSTING LLC | 24.3K | — | 58 |
| AS6134US | XNNET - XNNET LLC | 24.3K | 69.6K | 107 |
| AS398210US | RIVERNET - Lynches River Communications Inc | 24.3K | — | 27 |
| AS32528US | ABBOTT-LABS-2 - ROSS PRODUCTS DIVISION | 24.3K | — | 32 |
| AS18624US | CITYOFWILSONNC - Greenlight | 24.3K | — | 25 |
| AS20134US | MBCL - Mediatti Broadband Communications, LLC | 24.3K | — | 9 |