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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS46995US | JUMP-WIRELESS - Jump Wireless LLC | 256 | — | 1 |
| AS27214US | INSITU-AS - Insitu, Inc | 256 | — | 1 |
| AS33589US | CITYOFSOUTHLAKE - City of Southlake | 256 | — | 1 |
| AS62546US | FRISCOTXISD - Frisco Independent School District | 256 | — | 1 |
| AS22763US | BGP-DUCKS-INC - DUCKS UNLIMITED, INC. | 256 | — | 1 |
| AS35991US | PAULSON-CO - Paulson & CO. INC. | 256 | — | 1 |
| AS53331US | IMPERIAL-CAPITAL-GROUP-LLC - Imperial Capital Group LLC | 256 | — | 1 |
| AS63198US | JCSO-ASN - Jefferson County Sheriff's Office | 256 | — | 1 |
| AS30662US | VCU-01 - Veridian Credit Union | 256 | — | 1 |
| AS21566US | HOTAISLE - Hot Aisle Inc. | 256 | — | 1 |
| AS401828US | ARLINGTON-TV-COOPERATIVE - Arlington T-V Cooperative, Inc | 256 | — | 1 |
| AS399914US | N-LAB - N-LAB | 256 | 2 | 3 |
| AS210398US | Brander-Group-ASN Brander Group Inc. | 256 | — | 1 |
| AS394891US | SEAPORT-GLAN - Commonwealth Flats Development Hotel Corp. | 256 | — | 1 |
| AS402537US | YMISO - YMISO | 256 | 32 | 3 |
| AS14355US | IWI-TG-FW - Interstate Warehousing, Inc. | 256 | — | 1 |
| AS401718US | HAULERS-INSURANCE - Haulers Insurance Company Inc. | 256 | — | 1 |
| AS396916US | FLEETPRIDE - FleetPride, Inc. | 256 | — | 1 |
| AS397392US | BJWSA-AS - BJWSA | 256 | — | 1 |
| AS62629US | RESULTS - Results Physiotherapy | 256 | — | 1 |
| AS46921US | SMITHGROUP-ASN - SMITHGROUP Companies, Inc. | 256 | — | 1 |
| AS401748US | ASRINFOPRO-LLC - ASR INFOPRO LLC | 256 | — | 1 |
| AS14915US | FDBS-BCS - Financial Database Services | 256 | — | 1 |
| AS394254US | BLUESOFTWARE - BLUE SOFTWARE, LLC | 256 | — | 1 |
| AS402668US | ONE-FREE-COMPUTER-TRANSIT - One | 256 | 4.1K | 2 |
| AS54114US | NJ - 1010Data, Inc. | 256 | — | 1 |
| AS6531US | COFFEYCAN - Burlington USD #244 | 256 | — | 1 |
| AS394165US | COGNC - City of Greenville, NC | 256 | — | 1 |
| AS393325US | NMS-BGP - New Meadowlands Stadium Co., LLC | 256 | — | 1 |
| AS47061US | 5QCLOUDY - 5Q Cloud | 256 | — | 1 |
| AS22028US | TEXAS-LIFE-HOME-OFFICE - Texas Life Insurance Company | 256 | — | 1 |
| AS135004US | FY-AS-AP - fy, Inc. | 256 | — | 1 |
| AS26226US | LOYOL-1-ASN - Loyola High School of Los Angeles | 256 | — | 1 |
| AS916US | STALWART-ASN-01 - Stalwart Wireless | 256 | 256 | 2 |
| AS7850US | TN-ASN-CL - Tarakona Networks, LLC | 256 | — | 1 |
| AS219118US | MIA-AI MIA AI Holdings Inc | 256 | — | 1 |
| AS401510US | IMG-ACADEMY - IMG Academy, LLC | 256 | 256 | 2 |
| AS25854US | DT-CORP - Dealertrack, Inc. | 256 | — | 1 |
| AS56773US | mox Mox Networks, LLC | 256 | — | 1 |
| AS54879US | PUD-001 - Public Utility District No1 of Cowlitz County | 256 | — | 1 |
| AS395299US | SANJOSE-COSTARICA-01 - THE WESTERN UNION COMPANY | 256 | — | 1 |
| AS394186US | SE-BRANDS-01 - Self Esteem Brands, LLC | 256 | 4 | 2 |
| AS214691US | CubeData Timothy McDaniel | 256 | — | 1 |
| AS401385US | DURANTA-NET - Duranta Inc. | 256 | 3 | 4 |
| AS398205US | WSFARMS-LRO-01 - Sanderson Farms, Inc. | 256 | — | 1 |
| AS397309US | NTTDATA-TAG-FTC - Transaction Applications Group, Inc. | 256 | — | 1 |