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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1K |
| — |
| 4 |
| AS40069US | AISNET - ASSURED INFORMATION SECURITY, INC. | 1K | 17 | 5 |
| AS23414US | AUTORIDAD - Autoridad del Canal de Panama | 1K | — | 4 |
| AS62473US | ATC-INTERNET - The Adirondack Trust Company | 1K | — | 4 |
| AS5026US | LVVWD - Las Vegas Valley Water District | 1K | — | 4 |
| AS394908US | LAZBOYASN - La-Z-Boy Incorporated | 1K | — | 4 |
| AS30366US | AS-RHYTHMIC-NY - Rhythmic Technologies, Inc. | 1K | — | 3 |
| AS54800US | LAREDOISD - Laredo ISD | 1K | — | 4 |
| AS25971US | MILWAUKEE-PS - Milwaukee Public Schools | 1K | — | 4 |
| AS398123US | IRACING-CORPORATE - IRACING.COM MOTORSPORT SIMULATIONS, LLC | 1K | 4 | 6 |
| AS23235US | BOSMED-88-ENEWTON - Boston Medical Center | 1K | — | 4 |
| AS1614US | ISLLC-AS-01 - IOWA STUDENT LOAN LIQUIDITY CORP. | 1K | — | 4 |
| AS206219US | widevoice-fra WideVoice, LLC | 1K | — | 3 |
| AS11999US | REJISCOMM-NET - REJIS Commission | 1K | — | 4 |
| AS53627US | TELECOM1-01 - Telecom 1 LLC | 1K | 4.1K | 2 |
| AS401181US | CORDIAL-01 - Cordial | 1K | — | 1 |
| AS26671US | WRL-12 - Wynn Resorts Limited | 1K | — | 3 |
| AS12198US | JSMSR-LLC - JSMSR Network | 1K | 35 | 24 |
| AS400338US | GIGABEAM-INTERNET - Gigabeam Internet | 1K | 65.5K | 3 |
| AS14753US | UNIVE-80 - Universal Consulting | 1K | — | 4 |
| AS32715US | ICCNET - ILLINOIS CENTRAL COLLEGE | 1K | — | 3 |
| AS21821US | MMAHS-01 - Montefiore Medical Center | 1K | — | 4 |
| AS400064US | QUESTAVOLTA - Questa Volta | 1K | — | 3 |
| AS29970US | DEVONCORP - Devon Energy Corporation | 1K | — | 4 |
| AS395994US | VECC911 - VECC | 1K | — | 2 |
| AS207020US | ProMarketingCentral Pro Marketing Central LLC | 1K | 524.3K | 3 |
| AS12073US | CCSINET-1 - Contemporary Computer Services Inc. | 1K | — | 4 |
| AS19198US | DRW-HOLDINGS - DRW Holdings, LLC | 1K | — | 4 |
| AS396289US | WASHCORP-AS2 - Washington Corporations | 1K | — | 3 |
| AS54491US | BP-47-54491 - Bright Packet, Inc. | 1K | — | 1 |
| AS395688US | BMWL-ESP-VLY-0 - Black Mesa Wireless, LLC. | 1K | — | 2 |
| AS400496US | AMERICANFIBERNET - American Fiber Network, Inc. | 1K | 69.6K | 6 |
| AS399549US | AMS-MULTIHOME-01 - Access Management Services, LLC | 1K | — | 3 |
| AS29934US | NETACOM - Netadyne Networks, Inc. | 1K | — | 3 |
| AS399871US | HFL-NETWORKS - HFL Networks LLC | 1K | 65.5K | 2 |
| AS12204US | SCN-NET - SCN Research, Inc. | 1K | — | 3 |
| AS32319US | AS-MARQETA - Marqeta, Inc. | 1K | — | 4 |
| AS40268US | ICON-INTERNET - ICON Internet, LLC | 1K | 12.3K | 7 |
| AS54282US | JJINTEROP - Johnson & Johnson | 1K | — | 3 |
| AS401461US | ACCELERATE - Accelerate Networks LLC | 1K | 256 | 2 |
| AS62714US | PHILLIPSDATA - Phillips Data, Inc. | 1K | 5 | 9 |
| AS11144US | ADVENT-SOFTWARE - Advent Software | 1K | — | 4 |
| AS400678US | IPV4 - LIDL US OPERATIONS, LLC | 1K | — | 3 |
| AS4886US | OPINIONRESEARCHERS - Opinion Researchers, L.L.C. | 1K | — | 3 |
| AS25864US | ZAYO-CLOUD-TOR01 - Latisys-Irvine, LLC | 1K | 2 | 6 |
| AS15110US | HILLS-CCC-INET - Hillsborough County - Clerk of Circuit Court | 1K | — | 4 |
| AS36195US | COINFARM-NEURALRACK-01 - NeuralRack AI | 1K | — | 4 |