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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 5.4K |
| — |
| 6 |
| AS11589US | STOWE-COMMUNICATIONS - Stowe Communications LLC | 5.4K | — | 7 |
| AS36372US | VENYU-3 - REV | 5.4K | 65.5K | 4 |
| AS30548US | ARUBA - ARUBA NETWORKS, INC. | 5.4K | 90 | 13 |
| AS25868US | ACE-002 - Ace Data Centers II, L.L.C. | 5.4K | — | 3 |
| AS393938US | SSL-AS - SPACE SYSTEMS/LORAL, INC. | 5.4K | — | 6 |
| AS401560US | ONECABLE - OneCable Network LLC | 5.4K | 32 | 23 |
| AS26243US | INTELSAT-S - Intelsat | 5.4K | — | 13 |
| AS394611US | SOUTHCENTRALPOWER - South Central Power Company | 5.4K | 65.9K | 7 |
| AS400190US | FREEPORT-MCMORAN-INC - Freeport-McMoRan Inc. | 5.4K | 4.1K | 11 |
| AS32287US | SOLANA-CITIPLEX - Citigroup Inc. | 5.4K | — | 21 |
| AS140952US | STL-AS-AP - Strong Technology, LLC | 5.4K | 1.3K | 20 |
| AS5655US | DECADE-DOM - Decade Communications, Inc. | 5.4K | — | 20 |
| AS4557US | SOUTHEAST-TEXAS-GIGAPOP - Rice University | 5.4K | 259 | 10 |
| AS62516US | ABB-ASN - Alamo Broadband Inc. | 5.4K | 65.5K | 7 |
| AS40311US | VIASAT-3 - ViaSat,Inc. | 5.4K | — | 11 |
| AS397270US | NETINF-TRANSIT-AS - NetInformatik Inc. | 5.4K | 1.5K | 18 |
| AS1416US | CHICAGO-PUBLIC-SCHOOLS - Chicago Public Schools | 5.4K | — | 10 |
| AS4977US | VENCORESS - Vencore Services and Solutions, Inc. | 5.4K | — | 7 |
| AS25687US | KVH02842 - KVH INDUSTRIES,INC. | 5.4K | 1 | 12 |
| AS21504US | BESSEMER-GROUP-INCORPORATED - The Bessemer Group, Inc. | 5.4K | — | 20 |
| AS33717US | CHT-GLOBAL - Chunghwa Telecom Global, INC | 5.4K | — | 21 |
| AS30513US | DYNAMIC-INTERNET - DYNAMIC INTERNET | 5.4K | 65.5K | 9 |
| AS14653US | PULSAR360 - Pulsar360 | 5.4K | — | 11 |
| AS62811US | MTG - Mercury Technology Group, Inc. | 5.4K | — | 8 |
| AS40850US | AS-UPIX-40850 - UPIX NETWORKS INTERNATIONAL LLC | 5.4K | 82.2K | 17 |
| AS26244US | BGMU - Bowling Green Municipal Utilities | 5.4K | — | 8 |
| AS62763US | ABBVIE - AbbVie, Inc. | 5.4K | — | 14 |
| AS7838US | USAA - United Services Automobile Association | 5.4K | — | 21 |
| AS393319US | ANDURIL-1 - Anduril Industries, Inc. | 5.4K | — | 21 |
| AS3465US | JBHUNT - J. B. Hunt Transport Inc. | 5.4K | — | 8 |
| AS33321US | ZAYO-33321 - Zayo Bandwidth | 5.4K | — | 6 |
| AS395344US | IVANTI-BD - Ivanti, Inc. | 5.4K | — | 12 |
| AS62802US | MST-JCMAIN - Macy's Systems and Technology, Inc. | 5.4K | — | 15 |
| AS32255US | PPLNET-AS - PPL Corporation | 5.4K | — | 14 |
| AS16654US | VERO-NETWORKS-AS16654 - Vero Broadband | 5.4K | — | 7 |
| AS63117US | CDI - Churchill Downs Incorporated | 5.4K | — | 8 |
| AS25845US | VIRGINIA-MASON - Virginia Mason Medical Center | 5.4K | — | 3 |
| AS31942US | HYPERFIBER-01 - HyperFiber | 5.4K | 4.6K | 41 |
| AS7306US | ASIANDEVBANK - Asian Development Bank | 5.4K | — | 6 |
| AS3930US | FERC-FED-US - Federal Energy Regulatory Commission | 5.4K | — | 6 |
| AS26057US | MEDIAOCEAN - Mediaocean LLC | 5.4K | 9 | 25 |
| AS394326US | GOLDEN-VALLEY-CABLE - Route 66 Broadband LLC | 5.4K | — | 13 |
| AS394073US | BUNGIE-INC - Bungie Inc. | 5.4K | — | 14 |
| AS393698US | SW-USA-LLC - SW USA LLC | 5.4K | — | 10 |
| AS55112US | TALLGRASSENERGYLP - Tallgrass Operations, LLC | 5.4K | — | 11 |
| AS393657US | COLORADOMESAUNIVERSITY - Colorado Mesa University | 5.4K | 16 | 19 |