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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 | 24,555 |
| 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 |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| ILSHEALTH-01 - ILS Health |
| 320 |
| — |
| 2 |
| AS32822US | TEAMUCC - C.O.P.S. Monitoring | 288 | — | 2 |
| AS395054US | CDPHP - CDPHP | 288 | — | 2 |
| AS7019US | NTTA-7019 - NTT America, Inc. | 288 | 2 | 4 |
| AS21639US | BCBSLA-ASN - Blue Cross Blue Shield Of Louisiana | 264 | — | 2 |
| AS401494US | FUTURECONNECTNETWORK - futureConect LLC | 264 | — | 2 |
| AS1407US | QUOTEMEDIA - Quotemedia | 264 | — | 2 |
| AS14452US | CMA-USA - CMA, Inc. | 256 | — | 1 |
| AS397959US | ADTELL-SHIP-01 - Adtell Integration | 256 | — | 1 |
| AS64250US | VOCALOGIC - DialPath | 256 | — | 1 |
| AS210676US | Appline_Group_LLC Appline Group LLC | 256 | — | 1 |
| AS397051US | 1500-MED-ASSOC-DBQ - Medical Associates Clinic, P.C. | 256 | — | 1 |
| AS33200US | JABIL-AS-SILU-PH - Jabil | 256 | — | 1 |
| AS14565US | RRTL-3719 - Red Rock Telecommunications, Inc. | 256 | — | 1 |
| AS30485US | NASCAR-CLT-PROD - NASCAR Holdings, LLC | 256 | — | 1 |
| AS16676US | BARCHARTCOM - Barchart.com, Inc. | 256 | — | 1 |
| AS402464US | CNET-PR-01 - Curetopia | 256 | — | 1 |
| AS53544US | LUMUGRACEFUL - LUMU GRACEFUL | 256 | — | 1 |
| AS32602US | CORP-HDQTRS - ROI Solutions, LLC | 256 | — | 1 |
| AS62678US | HORACEMANNSCHOOL - Horace Mann School | 256 | — | 1 |
| AS5276US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS396301US | YETI-COOLERS - YETI Coolers, LLC | 256 | — | 1 |
| AS402074US | SOFTIRON-ASN-RIC - SoftIron | 256 | 1 | 2 |
| AS33644US | OSUFCUASN - Oregon State Credit Union | 256 | — | 1 |
| AS19010US | HODC - FloWorks International LLC | 256 | — | 1 |
| AS63312US | BUTTERNUT-ASN - Community Financial System, Inc. | 256 | — | 1 |
| AS29821US | EFCU-INET - Elevations Credit Union | 256 | — | 1 |
| AS40798US | WALLACE-HARDWARE - Wallace Hardware Co., Inc. | 256 | — | 1 |
| AS395342US | EXETERHOSPITAL - Exeter Hospital | 256 | — | 1 |
| AS397620US | CITYMENLOPARK - City of Menlo Park | 256 | — | 1 |
| AS27019US | BALLNET - Ball Horticultural Company | 256 | — | 1 |
| AS27231US | CARILION-HEALTH-SYSTEM - CARILION HEALTH SYSTEM | 256 | — | 1 |
| AS393723US | GCLS-BGP-01 - Greenville County Library System | 256 | — | 1 |
| AS14175US | HAWORTH - HAWORTH | 256 | — | 1 |
| AS402851US | UTURN-ASN - UTurn | 256 | 256 | 2 |
| AS402473US | RURALNET - Ruralnet | 256 | — | 1 |
| AS399201US | CMPS-AS - Compass Christian Church | 256 | 2 | 3 |
| AS399451US | MSDLT-ASN-01 - METROPOLITAN SCHOOL DISTRICT OF LAWRENCE TOWNSHIP | 256 | — | 1 |
| AS396849US | KPRC - GRAHAM MEDIA GROUP, HOUSTON, INC. | 256 | — | 1 |
| AS396396US | PEARL-INSURANCE - Pearl and Associates, LTD | 256 | — | 1 |
| AS13785US | SMH - SHORE MEMORIAL HOSPITAL | 256 | — | 1 |
| AS46669US | AMERICAN-PACIFIC-MORTGAGE - American Pacific Mortgage Corp. | 256 | — | 1 |
| AS393541US | ESS-CORP - EXTRA SPACE STORAGE | 256 | — | 1 |
| AS394595US | SENSATA - Sensata Technologies, Inc. | 256 | — | 1 |
| AS400407US | TRONOX-LLC - TRONOX LLC | 256 | — | 1 |
| AS35930US | DCOD - Datacenter on demand LLC | 256 | 4.1K | 2 |
| AS22119US | LEE-EQ1 - Lee Equity Partners LLC | 256 | — | 1 |