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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| 256 |
| — |
| 1 |
| AS13359US | LEARN-CACHING-PEERING - LEARN | 256 | 1 | 2 |
| AS19909US | DAYLIGHT - Daylight Transport, LLC | 256 | — | 1 |
| AS33202US | MOORE-VAN-ALLEN - Moore & Van Allen PLCC | 256 | — | 1 |
| AS1387US | ANSBB-ASNNET-2 - Verizon Business | 256 | 1 | 2 |
| AS398986US | SECUREDGG - Gameserverkings | 256 | — | 1 |
| AS19575US | ISPNET - ISPNET Communications LLC | 256 | 65.5K | 2 |
| AS401978US | INTREPID-NETWORK-GROUP - Intrepid Network Group | 256 | 4.1K | 2 |
| AS398316US | SCTDC - SC TECHNOLOGY SERVICES LLC | 256 | — | 1 |
| AS55136US | CF-ASN - CARLTON FIELDS, P.A. | 256 | — | 1 |
| AS393332US | MCALLENISD-TX - McAllen Independent School District | 256 | — | 1 |
| AS398736US | IRIDIUM-SATELLITE-ENT - IRIDIUM SATELLITE,LLC | 256 | 3 | 4 |
| AS19617US | SAA - SOUTHERN AUTO AUCTION | 256 | — | 1 |
| AS32598US | BLACK-HILLS-BROADBAND-NET-1 - Opzix | 256 | — | 1 |
| AS30478US | AVT - Affinity VoIP Telecom, Inc. | 256 | — | 1 |
| AS46767US | SMLWIRELESS - SMLW, Inc. | 256 | 16.4K | 2 |
| AS11730US | PROGFIN - Progressive Finance | 256 | — | 1 |
| AS398438US | MGCCC - Mississippi Gulf Coast Community College | 256 | — | 1 |
| AS11974US | DOS-GPADN-01 - US Department of State | 256 | — | 1 |
| AS401472US | PACKETFEED - Packetfeed | 256 | 256 | 2 |
| AS23196US | SYSTEMS-APPL-ENG - Systems Application Enterprises, Inc. | 256 | — | 1 |
| AS398027US | ASN-BELL2 - Bell Bank | 256 | — | 1 |
| AS40494US | VW-01 - VITALITY WORKS, INC. | 256 | — | 1 |
| AS17286US | PCRMC-ROLLA - Phelps County Regional Medical Center | 256 | — | 1 |
| AS401749US | GALPERSOL - Galactic Performance Solutions, LLC | 256 | — | 1 |
| AS14344US | AHEAD - AHEAD | 256 | — | 1 |
| AS39115US | NTTGN-NET-VFRPAR1 NTT Global Networks Incorporated | 256 | — | 1 |
| AS401802US | KANTIME-01 - KanTime | 256 | — | 1 |
| AS396512US | MM-AS1 - Movement Mortgage | 256 | — | 1 |
| AS35965US | EDNPC-ORG-1 - Electrical District No.3 of Pinal County | 256 | — | 1 |
| AS36293US | NHVAS - North Hunterdon-Voorhees Regional High School District | 256 | — | 1 |
| AS46374US | ICNET - Ideal Concepts, Inc. | 256 | — | 1 |
| AS11438US | LEMANS-1 - LeMans Corporation | 256 | — | 1 |
| AS19456US | WATERS-CORPORATION - Waters Technologies Corporation | 256 | — | 1 |
| AS16994US | VISTA-01 - Vista Bank | 256 | — | 1 |
| AS55115US | APXINC-DAL - APX, Inc. | 256 | — | 1 |
| AS3635US | BEA - U.S. Department of Commerce, Bureau of Economic Analysis | 256 | 16 | 2 |
| AS397158US | RCS-CO-LO-BGP - Resurgent Capital Services LP | 256 | — | 1 |
| AS13817US | CCML-ASN - Cantillon Capital Management, LLC | 256 | — | 1 |
| AS27328US | DUQUESNE-CAPITAL-MANAGEMENT-LLC-PA - DUQUESNE CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS14871US | DKM11-ARIN - The Reynolds and Reynolds Company | 256 | — | 1 |
| AS396235US | TODFL - Town of Davie | 256 | — | 1 |
| AS393633US | PRMC-ASN1 - Pratt Regional Medical Center | 256 | — | 1 |
| AS46794US | PENDER COUNTY SCHOOLS - Pender County Schools | 256 | — | 1 |
| AS62493US | COBNET-ASN-2 - City of Bryan, Texas | 256 | — | 1 |
| AS397878US | DDI-HQ-ASN - DEVELOPMENT DIMENSIONS INTERNATIONAL INC | 256 | — | 1 |
| AS14064US | NRECA - NRECA | 256 | — | 1 |