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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 | 21,174 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| FORTANIX - Fortanix |
| 1.3K |
| — |
| 17 |
| AS54201US | WEWORK-MANAGEMENT-LLC - We Link Networks LLC | 1.3K | 31 | 37 |
| AS30714US | PHX-ASN - Axway Inc | 1.3K | 257 | 4 |
| AS14711US | BRKTOOLS - INGERSOLL CUTTING TOOL COMPANY | 1.3K | — | 4 |
| AS400255US | BITFIRE - BitFire Networks, LLC | 1.3K | — | 5 |
| AS18662US | AFLAC - Aflac | 1.3K | — | 4 |
| AS55280US | RACKBYTE - RackByte LLC | 1.3K | 2 | 7 |
| AS26144US | FISERV-EFT - Fiserv Solutions, LLC | 1.3K | — | 4 |
| AS19231US | NBCUNI - NBCUniversal | 1.3K | — | 5 |
| AS395911US | MDLIVE-1 - Maryland Live! Casino | 1.3K | — | 5 |
| AS14160US | PREMIUMTELECOM - Premium Hosting, Inc. | 1.3K | — | 5 |
| AS26272US | AMDS-COSMOS - AM Data Service, Inc. | 1.3K | — | 2 |
| AS32974US | ASN-GHC - Kaiser Foundation Health Plan, Inc. | 1.3K | — | 5 |
| AS40051US | DWS-HK - Disney Worldwide Services, Inc. | 1.3K | — | 5 |
| AS394169US | NASSAU-COMMUNITY-COLLEGE - Nassau Community College | 1.3K | 256 | 6 |
| AS19281US | QUAD9-AS-1 - Quad9 | 1.3K | 1 | 6 |
| AS46282US | AVIALL-SERVICES-INC - Boeing Distribution, Inc. | 1.3K | — | 5 |
| AS14312US | 1-800CONTACTS - 1-800 Contacts, Inc. | 1.3K | — | 5 |
| AS399290US | INFINILINK-TX - Infinilink Broadband | 1.3K | — | 4 |
| AS22330US | CATALINAMKT - Catalina Marketing Corporation | 1.3K | — | 5 |
| AS30229US | SE2-BGP-AS - SE2, Inc | 1.3K | — | 5 |
| AS396012US | COS-ASN01 - City of Scottsdale | 1.3K | — | 4 |
| AS397760US | OPTYM - Optym, Inc. | 1.3K | — | 2 |
| AS393446US | ALPHACORE-NETWORK - AlphaCore Network LLC | 1.3K | — | 5 |
| AS393669US | PRIME-HEALTHCARE-AS - Prime Healthcare Services, Inc. | 1.3K | — | 5 |
| AS54178US | USAI-NA-01 - Urban Science Applications, Inc. | 1.3K | — | 5 |
| AS400201US | AS-SFLSC - SFLSC, LLC | 1.3K | — | 2 |
| AS46461US | CRYPTICSTUDIOS - CRYPTIC STUDIOS, INC. | 1.3K | — | 4 |
| AS27448US | KAYENTA - Kayenta Technologies | 1.3K | 65.5K | 3 |
| AS36210US | SFCF - Moscone Center Joint Ventures | 1.3K | 1 | 3 |
| AS63405US | CANON-BUSINESS-PROCESS-SERVICES-UT - CANON BUSINESS PROCESS SERVICES, Inc. | 1.3K | — | 5 |
| AS992US | MODEST-LABS - Modest Labs LLC | 1.3K | 9 | 6 |
| AS36707US | SYSTEMADMIN - System Admin, LLC | 1.3K | — | 2 |
| AS19808US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.3K | — | 5 |
| AS399889US | NET-FRONT-001 - Qwscloud Dot Com | 1.3K | — | 2 |
| AS401678US | BISECT-HOSTING - BisectHosting | 1.3K | — | 3 |
| AS395777US | AUBFIBER - ATHENS UTILITIES BOARD | 1.3K | 65.5K | 3 |
| AS11582US | SMART-CITY-SLCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 2 |
| AS13458US | DKP-ASN - DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | 1.3K | — | 5 |
| AS10308US | NEIUNET - Northeastern Illinois University | 1.3K | — | 4 |
| AS25602US | TRAVELERSPCAS2 - Travelers Property Casualty Corp. | 1.3K | — | 5 |
| AS22890US | NCC-OMAHA - Nebraska Colocation Centers, LLC | 1.3K | — | 4 |
| AS62839US | FADV - First Advantage Corporation | 1.3K | — | 3 |
| AS398373US | SERVERDESTROYERS - Server Destroyers LLC | 1.3K | — | 2 |
| AS21726US | RGTS-JFK - Convergeone Unified Technology Solutions, Inc. | 1.3K | — | 5 |
| AS206070US | MROUTE Master Route LLC | 1.3K | — | 2 |
| AS399951US | ARCHOUS - Archous Networks Inc. | 1.3K | 256 | 6 |