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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. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| 1 |
| 3 |
| AS393542US | PLATEAU-GROUP - The Plateau Group, Inc. | 512 | — | 2 |
| AS394176US | I-NET-USA - I-NET USA, LLC | 512 | — | 1 |
| AS400211US | PORT80 - Port 80 | 512 | 65.5K | 3 |
| AS23257US | IBMCCH-DAL-EQU - IBM | 512 | — | 2 |
| AS13744US | THP-BGP - TYNDALE HOUSE PUBLISHERS | 512 | — | 2 |
| AS55295US | NEWDAYASN - New Day Broadband One LLC | 512 | — | 1 |
| AS16534US | HANWECK-ASSOCIATES-LLC - Cboe | 512 | — | 2 |
| AS53262US | MSC-AS - Mercy Medical Center | 512 | — | 2 |
| AS394450US | MCKINSEY-US-ADP - McKinsey & Company, Inc. | 512 | — | 2 |
| AS54128US | POKEMON-BELLEVUE - The Pokemon Company International, Inc. | 512 | — | 2 |
| AS20339US | RR-CENTRAL - Rosenthal & Rosenthal Inc. | 512 | — | 2 |
| AS26722US | MAIN-SEQUENCE-TECHNOLOGIES - Main Sequence Technology, Inc. | 512 | 3 | 5 |
| AS398002US | TGNA-WQAD - TEGNA Inc. | 512 | — | 2 |
| AS54554US | TIG-AS - Turner Industries Group, LLC. | 512 | — | 2 |
| AS32617US | STEAK-N-SHAKE - The STEAK N SHAKE Company | 512 | — | 2 |
| AS398758US | AVONDALE - CITY OF AVONDALE | 512 | — | 2 |
| AS36565US | COUNTY-OF-MONTGOMERY-PA - County of Montgomery | 512 | — | 2 |
| AS40117US | YEXT - Yext, Inc. | 512 | — | 2 |
| AS11020US | ANSI - RUSTIC RESOURCES, LLC | 512 | 16 | 3 |
| AS15349US | AS-NJ1-DIA - Guggenheim Services LLC | 512 | — | 2 |
| AS30706US | EAMONTREAL - Electronic Arts, Inc. | 512 | — | 1 |
| AS19663US | CASS-STL - CASS INFORMATION SYSTEMS | 512 | — | 2 |
| AS394301US | DEXCOM-INC - Dexcom, INC. | 512 | — | 2 |
| AS398207US | EAITECH-ASN-01 - EAI Technologies | 512 | — | 2 |
| AS30515US | USP - USP | 512 | — | 2 |
| AS33159US | NSPNET1 - Nature's Sunshine Products, Inc. | 512 | — | 1 |
| AS395980US | COMCAST-MES - Comcast Cable Communications, LLC | 512 | — | 2 |
| AS23310US | TASTYLIME - TASTY LIME | 512 | — | 2 |
| AS406US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 2 |
| AS3592US | TRINCOLL-AS - Trinity College | 512 | — | 2 |
| AS393658US | ATYPON - Atypon Systems, Inc. | 512 | 1 | 2 |
| AS53607US | SDCS-AS1 - Synergy Data Center & Services | 512 | — | 2 |
| AS63167US | TGNA-KING-KONG - TEGNA Inc. | 512 | — | 2 |
| AS209373US | SWISSNET-AS SWISSNET LLC | 512 | — | 2 |
| AS13997US | RD-CHI-AS - Rapid Displays, Inc | 512 | — | 2 |
| AS64257US | TXGL1 - trueEX LLC | 512 | — | 2 |
| AS46307US | CENTAURI - Centauri Solutions, LLC | 512 | 2 | 4 |
| AS46274US | UPHS - Penn Medicine | 512 | — | 2 |
| AS399458US | COMARCH-NET-US-1 - Comarch Inc | 512 | — | 2 |
| AS13732US | CELLNET - CellNet Communications | 512 | 1 | 3 |
| AS394697US | VSLR - Vivint Solar | 512 | — | 1 |
| AS396296US | HORIZON-CREDIT-UNION-57 - Horizon Credit Union | 512 | — | 2 |
| AS25924US | GCM - Graham Capital Management, L.P. | 512 | — | 2 |
| AS23218US | TMC - Texas Medical Center | 512 | — | 2 |
| AS397430US | KANE-COUNTY-GOV - County of Kane | 512 | — | 1 |
| AS62977US | PAPEGROUP - The Pape Group, Inc. | 512 | — | 2 |