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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS22461US | MERCEDESISD - Mercedes Independent School District | — | — | 0 |
| AS22490US | SIERRABRAVOCORP - The Nerdery, LLC | — | — | 0 |
| AS22499US | AIG-AMG-WILTON - AIG FINANCIAL PRODUCTS CORP. | — | — | 0 |
| AS22518US | PANDORA-CORP - Pandora Media, LLC | — | — | 0 |
| AS22528US | CDS-PHX-ATL - M/A/R/C INC | — | — | 0 |
| AS22550US | EXP-TOR2007A - Experian | — | — | 0 |
| AS22565US | YAHOO-NUQ - Yahoo Holdings Inc. | — | — | 0 |
| AS22642US | GXCLARKE-BCP - StoneX Group Inc. | — | — | 0 |
| AS22654US | NOV-NET-01 - Novani, LLC | — | — | 0 |
| AS22720US | RACKSPACE-AUS - Rackspace Hosting | — | — | 0 |
| AS22793US | PTSDCS - PTS Data Center Solutions, Inc | — | — | 0 |
| AS22795US | ABOUT-COM - ABOUT, INC. | — | — | 0 |
| AS22811US | WSGR - Wilson, Sonsini, Goodrich & Rosati, Professional Corporation | — | — | 0 |
| AS22896US | RPFUNDING4420 - R P Funding, Inc. | — | — | 0 |
| AS22932US | CCL-224-AS - Cobridge Communications LLC | — | — | 0 |
| AS23133US | ARETI-US-AS - Areti Internet LLC | — | — | 0 |
| AS23183US | SWIFTSYSTEMS - SWIFT SYSTEMS, INC. | — | — | 0 |
| AS23203US | XS MEDIA - Online Northwest | — | — | 0 |
| AS23244US | CALPOP2 - AirlineReservations.Com, Inc. | — | — | 0 |
| AS23258US | PARAMO - Paramount Pictures | — | — | 0 |
| AS23285US | GES-NATIONAL-LV - Global Experience Specialists, LLC | — | — | 0 |
| AS23315US | USUT-SLC - Firstsource Solutions USA, Inc | — | — | 0 |
| AS23361US | WVUF - West Virginia University Foundation, Inc. | — | — | 0 |
| AS23396US | NUTRISYSTEM - Nutrisystem, Inc | — | — | 0 |
| AS23451US | ST-OLAF-COLLEGE-TELEPHONE-OFFICE - St. Olaf College | — | — | 0 |
| AS24300US | KYNDRYLINC-AS-AP - Kyndryl INC | — | — | 0 |
| AS25610US | MCC-PTV - Metro Communications Company | — | — | 0 |
| AS25681US | MERCHANT-SOLUTIONS-25681 - Worldpay, LLC | — | — | 0 |
| AS25682US | FORKSYSTEMS - FORK SYSTEMS | — | — | 0 |
| AS25719US | XMT3-001-CPR - Clear Voice Telecom Inc. | — | — | 0 |
| AS25722US | GATEWAY-OPERATIONS - Payment Processing Inc. | — | — | 0 |
| AS25803US | AECE - Cboe | — | — | 0 |
| AS25804US | LLNW-IL-TLV - Limelight Networks, Inc. | — | — | 0 |
| AS25847US | LEASEWEB - Leaseweb USA, Inc. | — | — | 0 |
| AS25884US | WIZARDS - Wizards of the Coast | — | — | 0 |
| AS25887US | SLIAC - St Louis Internet2 Access Consortium LLC | — | — | 0 |
| AS25902US | MOXIE-FREEDOM-01 - Moxie Freedom LLC | — | — | 0 |
| AS25981US | FTIS-QSI - Franklin Resources, Inc. | — | — | 0 |
| AS26044US | CHARTER-26044-NA - Charter Communications LLC | — | — | 0 |
| AS26056US | INSIGHT-AS - Insight Direct USA, Inc. | — | — | 0 |
| AS26113US | TNS-ASN - Triware Networld Systems | — | — | 0 |
| AS26175US | SACRAMENTO-IX-ROUTE-SERVERS - Ninja-IX Corporation | — | — | 0 |
| AS26245US | ROBERT-H - Robert Half International | — | — | 0 |
| AS26256US | RSQ-ASN-2002 - RingSquared | — | — | 0 |
| AS26279US | ANCC - Advanced Networking and Communication Corporation | — | — | 0 |
| AS26301US | HOUSTON-IX-ROUTE-SERVERS - Ninja-IX Corporation | — | — | 0 |