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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 4,342 |
| 768 |
| — |
| 3 |
| AS23079US | ARVEST-AS1 - Arvest Bank Operations | 768 | — | 3 |
| AS54337US | BW-LYNVA - BWX Technologies, Inc. | 768 | — | 3 |
| AS204464US | NEXTSERV NextServ LLC | 768 | 404.3K | 25 |
| AS25821US | PRISEDA-NET - Priseda LLC | 768 | — | 3 |
| AS13662US | VRIS-AS-BLOCK - Verizon Business | 768 | — | 2 |
| AS33288US | DASH FT - Dash Financial Technologies LLC | 768 | — | 3 |
| AS13620US | EMBLEMHEALTH - EMBLEMHEALTH SERVICES COMPANY, LLC | 768 | — | 3 |
| AS14903US | PILOT-CATASTROPHE - Pilot Catastrophe Services, Inc. | 768 | — | 2 |
| AS26446US | AS-OSTRA - Ostra Cybersecurity, Inc. | 768 | — | 2 |
| AS16657US | CROWNCASTLE-AS16657 - Crown Castle Fiber LLC | 768 | — | 3 |
| AS33026US | SHAKLEE1 - SHAKLEE CORPORATION | 768 | — | 3 |
| AS400215US | SAMBANOVA - Sambanova Systems, Inc. | 768 | — | 3 |
| AS395972US | SCHREIBERFOODS - Schreiber Foods, Inc. | 768 | — | 3 |
| AS19771US | EMERGE-AS1 - Emerge Technologies LLC. | 768 | — | 3 |
| AS63314US | MSFT - Microsoft Corporation | 768 | — | 2 |
| AS14227US | BTX-01 - Brownsville Public Library System | 768 | — | 3 |
| AS19658US | BROWARDHEALTH-AS - North Broward Hospital District | 768 | — | 3 |
| AS397056US | AGWORKS - AgWorks, LLC | 768 | — | 3 |
| AS395823US | DOOF - doof.net | 768 | 4.1K | 6 |
| AS26151US | ARTHREXINC - Arthrex Inc. | 768 | — | 3 |
| AS32186US | FUJIFILM-HLUS - FUJIFILM Manufacturing USA, Inc | 768 | — | 2 |
| AS63454US | SHM-AS-63454 - Summit Health Management, LLC | 768 | — | 3 |
| AS46504US | IDIT - Bonds.com, LLC | 768 | — | 3 |
| AS10979US | ICWGROUP - INSURANCE COMPANY OF THE WEST | 768 | — | 3 |
| AS395975US | DENTONCOAS-1 - Denton County, Texas | 768 | — | 3 |
| AS19161US | APOG-UNCC-NORTH - Apogee Telecom Inc. | 768 | — | 2 |
| AS22674US | SOUTHERNWINE - Southern Wine & Spirits of America, Inc. | 768 | — | 3 |
| AS11247US | HONEYWELL-AEROSPACE - Honeywell International, Inc. | 768 | — | 3 |
| AS393251US | FRANCIS-MARION-UNIVERSITY - Francis Marion University | 768 | — | 2 |
| AS401605US | WEB-HOST-MOST-ASN-1 - Web Host Most, LLC | 768 | 3.1K | 6 |
| AS39966US | GBPHBUMC - General Board of Pensions and Health Benefits | 768 | — | 3 |
| AS35947US | THRIVE-CA1 - Thrive Operations, LLC | 768 | — | 3 |
| AS16785US | USANA-INC - USANA Inc | 768 | — | 2 |
| AS396285US | CBTS-AS-FGA - Cincinnati Bell Technology Solutions | 768 | — | 3 |
| AS54790US | SHARECARE - Sharecare, Inc. | 768 | — | 3 |
| AS23019US | BGP1-BOH - BANK OF HAWAII | 768 | — | 3 |
| AS54334US | SWIFTNODE-LLC - Swiftnode LLC | 768 | 3 | 6 |
| AS31883US | TIM-2300 - Thornburg Investment Management Inc. | 768 | — | 3 |
| AS11804US | AMVDM - All Mobile Video Inc | 768 | — | 3 |
| AS54099US | CITYOFSAVANNAH - City of Savannah | 768 | — | 3 |
| AS394046US | JWKFO - JELD WEN | 768 | — | 3 |
| AS64243US | MPTC - Moraine Park Technical College | 768 | — | 3 |
| AS40916US | EVALSE - Evalse, LLC | 768 | 3 | 6 |
| AS11363US | FUJITSU-NORTH-AMERICA-INC - Fujitsu North America, Inc. | 768 | — | 2 |
| AS400167US | NORTHERN-WIRELESS - Northern Wireless | 768 | 256 | 3 |
| AS63317US | GREENVILLECOUNTYSC - Greenville County | 768 | — | 3 |