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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS400993US | SSGAS-01 - Silver Stratus Global LLC | — | — | 0 |
| AS401015US | SCIENCE-DMZ-RESEARCH-NETWORK - Association for Computing Machinery, Inc. | — | — | 0 |
| AS401042US | PUBLIC-ASN-REQUEST - Summit Securities Group LLC | — | — | 0 |
| AS401050US | GLOBOTELIX - Highland Mark | — | — | 0 |
| AS401058US | ALZ - The Vanguard Group, Inc. | — | — | 0 |
| AS401094US | SW - SparkWave Technologies Limited | — | — | 0 |
| AS401105US | CATAPULT-DAL-01 - Catapult Health | — | — | 0 |
| AS401116US | NYBULA - Nybula LLC | — | — | 0 |
| AS401158US | SHOBAN-OWNED - SHOSHONE BANNOCK TRIBES | — | — | 0 |
| AS401171US | CRASTAR - Crastar LLC | — | — | 0 |
| AS401208US | EPHRON-INC - Ephron, Inc. | — | — | 0 |
| AS401268US | KRAMBU - Krambu, Inc. | — | — | 0 |
| AS401318US | AUTX-ATFCUAS-01 - Austin Telco Federal Credit Union | — | — | 0 |
| AS401368US | MINAKILABS-AS02-AS03 - MinakiLabs | — | — | 0 |
| AS401374US | DATACANOPY-DEN02 - Sidus Group, LLC | — | — | 0 |
| AS401426US | MHN - St. Mary's Medical Center, Inc. | — | — | 0 |
| AS401447US | KRIM-ENTERPRISES - Krim Enterprises | — | — | 0 |
| AS401488US | CLAIR - Clair Global | — | — | 0 |
| AS401584US | TOCU-01 - TEAM ONE CREDIT UNION | — | — | 0 |
| AS401681US | COIXIA LLC - Coixia LLC | — | — | 0 |
| AS401689US | APTNET-INTERIOR - Alaska Power & Telephone Company | — | — | 0 |
| AS401711US | BRYANLABS-US - Bryanlabs, LLC | — | — | 0 |
| AS401713US | LAMBDA-CLOUD-PRIVATE-01 - Lambda | — | — | 0 |
| AS401790US | IXWV - West Virginia Internet Exchange | — | — | 0 |
| AS401803US | PEOPRK25 - Peoria Park District | — | — | 0 |
| AS401897US | NCSMSIUS - NCS Managed Services USA LLC | — | — | 0 |
| AS401931US | DEX-OPERATIONS - DEX Imaging | — | — | 0 |
| AS401964US | OUTSCALE-INC - OUTSCALE INC | — | — | 0 |
| AS401969US | THE-BOOM-COMPANY-AS - The Boom Company | — | — | 0 |
| AS402013US | ASU-MIDSOUTH-AS - Arkansas State University | — | — | 0 |
| AS402015US | ASU-BEEBE-AS - Arkansas State University | — | — | 0 |
| AS402042US | ASN-FIBERFED-GEO2 - Trinity Network Solutions | — | — | 0 |
| AS402098US | LYNX-TRADING - Lynx Trading Technologies LLC | — | — | 0 |
| AS402105US | SPANSCALE - SPANSCALE Corporation | — | — | 0 |
| AS402233US | DEBUGGED - Debugged Inc. | — | — | 0 |
| AS402271US | TRAVERSE-CITY-LIGHT-AND-POWER - Traverse City Light and Power | — | — | 0 |
| AS402326US | LIMRUN-01 - Limrun, | — | — | 0 |
| AS402437US | AS-FIRM - FirmVPS | — | — | 0 |
| AS402543US | KCMOPD - Kansas | — | — | 0 |
| AS402546US | RACKBYTE - RackByte | — | — | 0 |
| AS402557US | AIRDRESS - Airdress | — | — | 0 |
| AS402569US | HFYM - HFYM | — | — | 0 |
| AS30US | SRI-AICNET - SRI International | — | — | 0 |
| AS75US | ANL-AS - Argonne National Laboratory | — | — | 0 |
| AS79US | DSPO-HC-AS - Los Alamos National Laboratory | — | — | 0 |
| AS114US | NTTA-114 - NTT America, Inc. | — | — | 0 |