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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 512 |
| — |
| 2 |
| AS32894US | MCWANE - McWane, Inc. | 512 | — | 2 |
| AS22179US | LTS-CO01 - Links Technology Solutions, Inc. | 512 | — | 2 |
| AS395230US | ABM-IND-DR - ABM Industries | 512 | — | 2 |
| AS40668US | FENWAL-INCORPORATED - Fenwal, Inc. | 512 | — | 2 |
| AS8135US | TROY-UNIVERSITY - Troy University | 512 | — | 2 |
| AS30152US | PALA-BAND-OF-MISSION-INDIANS - Pala Band Of Mission Indians | 512 | — | 1 |
| AS396933US | TELWARE-EAST01 - TelWare Corporation | 512 | — | 2 |
| AS399562US | IZT-CLOUD-UNIVERSAL - IZT Cloud | 512 | — | 2 |
| AS30450US | CITY-OF-LATHROP - City of Lathrop | 512 | — | 2 |
| AS11294US | SHUTTERFLY-LLC - Shutterfly, LLC | 512 | — | 1 |
| AS11958US | USABLE - USAble Life | 512 | — | 2 |
| AS47036US | HCPS-AS - Halifax County Public Schools | 512 | — | 2 |
| AS31894US | STARCOMWI - Star Communications LLC | 512 | — | 2 |
| AS397311US | WTV1951 - Zito Media | 512 | — | 2 |
| AS397445US | 1314-DOUGLAS-01 - NATIONAL INDEMNITY COMPANY | 512 | — | 1 |
| AS6462US | NATGEOGRAPH-AS - National Geographic Society | 512 | — | 1 |
| AS394679US | GENERAC - Generac Power Systems, Inc. | 512 | — | 2 |
| AS398195US | BARSTOOL-SPORTS - Barstool Sports, Inc. | 512 | — | 2 |
| AS62021US | LATISYS-DENVER Zayo Group, LLC | 512 | — | 2 |
| AS396135US | AS-WOODMENLIFE-1 - Woodmen of the World Life Insurance Society | 512 | — | 2 |
| AS53878US | EMC-AS - Dell, Inc. | 512 | — | 2 |
| AS17338US | UNITAS-AOS - Unitas Global | 512 | — | 2 |
| AS19839US | SANDSBETHLEHEM - Wind Creek Bethlehem LLC | 512 | — | 2 |
| AS18937US | NMC - National Monitoring Center | 512 | — | 2 |
| AS14700US | NEXURE-AS14700 - Nexure Solutions LLP | 512 | — | 2 |
| AS3788US | TEXAS-DOT - Texas Department of Transportation | 512 | — | 2 |
| AS12205US | SCSD - Sachem Central School District | 512 | — | 2 |
| AS46843US | TGNA-KTVB - TEGNA Inc. | 512 | — | 2 |
| AS27520US | TECHOGS - Techogs llc | 512 | 256 | 3 |
| AS1219US | NCUBE-OREGON-AS - Oracle Corporation | 512 | 1 | 3 |
| AS202540US | CDSTEPHENS Christopher Stephens | 512 | 6 | 7 |
| AS396492US | DBISP - dbISP, LLC | 512 | — | 2 |
| AS27636US | SHERATONLJ-GUEST-INTERNET - Sheraton La Jolla Hotel | 512 | — | 1 |
| AS12053US | TRUMARK-FINANCIAL - TruMark Financial Credit Union | 512 | — | 2 |
| AS54018US | EG-USWEST - EXPEDIA, INC | 512 | — | 2 |
| AS30018US | RED-GAP-COMMUNICATIONS-INC - Red Gap Communications, Inc. | 512 | — | 2 |
| AS199783US | PTTECH-AS PassThru Technologies LLC | 512 | — | 2 |
| AS10469US | RFGNET - The Ridgefield Group, Inc. | 512 | — | 1 |
| AS210031US | wavely AXON Networks Inc. | 512 | — | 2 |
| AS16534US | HANWECK-ASSOCIATES-LLC - Cboe | 512 | — | 2 |
| AS12184US | FORRESTER-RESEARCH - Forrester Research | 512 | — | 2 |
| AS394813US | KRRBI - Karuk Tribe | 512 | — | 1 |
| AS11121US | FIRSTDATACORP-DB - Fiserv Solutions, LLC | 512 | — | 2 |
| AS62756US | DOTBLOCK-2 - HostRocket.com, Inc. | 512 | 256 | 2 |
| AS54649US | ADC-ATLANTA - AutomationDirect.com, Inc. | 512 | — | 1 |
| AS14914US | JBPCO - J.B. Poindexter & Co., Inc. | 512 | — | 1 |