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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS401756US | SWANROE - Swanroe Internet Cooperative LLC | 256 | 4.1K | 2 |
| AS396403US | AVMED - Avmed | 256 | — | 1 |
| AS394483US | DSS - Doyle Security Systems, Inc. | 256 | — | 1 |
| AS26987US | COAHOMACC - Coahoma Community College | 256 | — | 1 |
| AS395325US | TRIPLEBCORP - Triple B Corporation | 256 | — | 1 |
| AS395444US | MERIT-RICHMOND - Merit Medical Systems, Inc | 256 | — | 1 |
| AS393863US | DMA-IND-DC - DMA | 256 | — | 1 |
| AS40409US | MARMOT-LIBRARY-NETWORK - Marmot Library Network, Inc. | 256 | — | 1 |
| AS400985US | TRCAS - Three Rivers Casino and Resort | 256 | 2 | 3 |
| AS22396US | LANVERA - Lanvera Ltd | 256 | — | 1 |
| AS22590US | SKAGIT-COUNTY-PHD-2-WA - Island Health | 256 | — | 1 |
| AS394980US | VAKIFBANK-NY - Turkiye Vakiflar Bankasi T.A.O. | 256 | — | 1 |
| AS399505US | EBNHC-AS - East Boston Neighborhood Health Center | 256 | — | 1 |
| AS25725US | EINK - E INK CORPORATION | 256 | — | 1 |
| AS397871US | COD-PUBLIC-148 - City Of Detroit | 256 | — | 1 |
| AS395185US | ESCAMBIA-COUNTY-FL-BCC - Escambia County FL Board of County Commissioners | 256 | — | 1 |
| AS27535US | DEPLOYPORT - Deployport LLC | 256 | — | 1 |
| AS400038US | BEMIS-MANUFACTURING - BEMIS MANUFACTURING COMPANY | 256 | — | 1 |
| AS46319US | AAM-ASN1 - American Axle and Manufacturing, Inc. | 256 | — | 1 |
| AS53854US | AS53854 - Griffin Health Services Corp. | 256 | — | 1 |
| AS401119US | MARRINERTECH - Marriner Technology Solutions | 256 | 258 | 4 |
| AS29723US | GARVIN-GROUNDS-II - Garvin Grounds II, LLC | 256 | — | 1 |
| AS397314US | WPMALONE - Allcare Pharmacy | 256 | — | 1 |
| AS397692US | OXBOW-ASN-01 - OXBOW CARBON LLC | 256 | — | 1 |
| AS22831US | SCG-ARIN - THE SCIENTIFIC CONSULTING GROUP, INC | 256 | — | 1 |
| AS399148US | ZETALINK - Zetalink | 256 | — | 1 |
| AS393822US | POSDNET - Port of San Diego | 256 | — | 1 |
| AS397424US | WAM-ASN-01 - Weiss Asset Management LP | 256 | — | 1 |
| AS11860US | AEGIS-INSURANCE-SERVICES-INC - AEGIS Insurance Services, Inc. | 256 | — | 1 |
| AS29786US | ABRAMSCAPITALMANAGEMENTLLC - Abrams Capital Management, LLC | 256 | — | 1 |
| AS19455US | NORTH-KANSAS-CITY-SCHOOLS - North Kansas City Schools | 256 | — | 1 |
| AS393688US | INSULET600TECH - Insulet Corporation | 256 | — | 1 |
| AS16665US | JIBEI-FLUSHING - Joint Industry Board of the Electrical Industry | 256 | — | 1 |
| AS395001US | STATEOFMAINE-ASN1 - State of Maine | 256 | — | 1 |
| AS32790US | PACIOLAN-INC - Paciolan, LLC | 256 | — | 1 |
| AS27511US | PUNAHOU - Punahou School | 256 | — | 1 |
| AS32826US | TZPRINT - Three-Z Printing Co. | 256 | — | 1 |
| AS397406US | DCMH-DELTA-01 - Delta County Memorial Hospital | 256 | — | 1 |
| AS395051US | POWDR-CORP - POWDR CORP | 256 | — | 1 |
| AS394661US | MNA01 - Manning & Napier Advisors, LLC | 256 | — | 1 |
| AS49466US | AS-KLAYER Klayer LLC | 256 | — | 1 |
| AS11163US | PLINK-OSIDE - Promptlink Communications Inc. | 256 | 1 | 2 |
| AS398934US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS395909US | KAWAII-NETWORKS-CARRIER - Kawaii Networks LLC | 256 | 3 | 4 |
| AS396897US | DECOPAC - DecoPac, Inc. | 256 | — | 1 |
| AS14262US | CALUMET-ASN-01 - CALUMET COUNTY | 256 | — | 1 |