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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 4.4K |
| — |
| 9 |
| AS53684US | CWAS02 - Centre WISP Venture Company | 4.4K | — | 4 |
| AS397347US | NORTH-AS1 - NorthfieldWiFi LLC | 4.4K | — | 5 |
| AS399469US | RELIABLE-NETS - Reliable Nets LLC | 4.4K | — | 2 |
| AS30673US | NTHRIVE-ASN01 - Finthrive, Inc. | 4.4K | — | 10 |
| AS19927US | NHMCCD - Lone Star College System District | 4.4K | — | 11 |
| AS402681US | AYIT-INTERNET - AYIT | 4.4K | 8.2K | 10 |
| AS21833US | TRINITY-HEALTH - Trinity Health Corporation | 4.4K | — | 3 |
| AS14274US | TENNESSEE-WIRELESS-LLC - TENNESSEE WIRELESS LLC | 4.4K | — | 2 |
| AS55274US | CAESARS-ENTERTAINMENT - Caesars Entertainment Operating Company, Inc. | 4.4K | — | 2 |
| AS394077US | LIFEBRIDGEHEALTH - Lifebridge Health, Inc. | 4.4K | — | 11 |
| AS32626US | HOUSTON-AREA-LIBRARY-AUTOMATED-NETWORK-HALAN - Houston Public Library | 4.4K | — | 2 |
| AS46997US | NATOLAB - Black Mesa Corporation | 4.4K | 1.2K | 38 |
| AS20014US | WRCTC-NET-1 - West River Cooperative Telephone Company | 4.4K | — | 7 |
| AS13726US | APS-AS - Atlanta Public Schools | 4.4K | — | 2 |
| AS19368US | THRIVE-SNS-COLO - Thrive Operations, LLC | 4.4K | — | 4 |
| AS13798US | LOREAL-USA - L'Oreal USA | 4.4K | — | 7 |
| AS23102US | RMU-EDU - Robert Morris University | 4.4K | — | 2 |
| AS1406US | MOTOROLA-MOBILITY - Motorola Inc | 4.4K | — | 11 |
| AS23280US | VENN - Venn Technology Corp | 4.4K | — | 17 |
| AS11910US | LAKENET-LLC - LakeNet LLC | 4.4K | — | 17 |
| AS22324US | XTEL - XTEL Communications | 4.4K | — | 5 |
| AS46479US | PREFERRED-NETWORKS - Pyramid.Net | 4.4K | — | 5 |
| AS40801US | LEWISU-ROMEOVILLE - Lewis University | 4.4K | — | 2 |
| AS22604US | DSS-MT - Disney Streaming Services | 4.4K | 16 | 33 |
| AS5982US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 4.4K | — | 2 |
| AS54696US | FOOTHILLS-BROADBAND - Foothills Broadband, LLC | 4.4K | 4.1K | 13 |
| AS17242US | UNIPAC - UNIPAC Service Corporation | 4.4K | 256 | 18 |
| AS32331US | FIVEPOINT NETWORKS - FivePoint Networks, LLC | 4.4K | — | 5 |
| AS39941US | PACIFIC-WAVE - Pacific Wave | 4.4K | 1 | 3 |
| AS394396US | LISTRAK-AS1 - Listrak | 4.4K | — | 2 |
| AS22077US | RENAISSANCE-TECH - Renaissance Technologies Corp. | 4.4K | — | 11 |
| AS19600US | NCH-AS - Nationwide Children's Hospital | 4.4K | — | 2 |
| AS397394US | GCBB - Gold Coast Broadband | 4.4K | — | 17 |
| AS21660US | BAXALTA - Baxalta Incorporated | 4.4K | — | 11 |
| AS7810US | CMPC - CompuCom Systems, Inc. | 4.4K | — | 2 |
| AS399597US | BOLD-WJC - Apogee Telecom Inc. | 4.4K | 1 | 3 |
| AS40885US | E2OPEN-1 - E2open LLC | 4.4K | 3 | 14 |
| AS18555US | THE-ART-INST - The Art Institute of Chicago | 4.4K | — | 2 |
| AS14926US | KYN-GTS - Kyndryl | 4.4K | — | 2 |
| AS22295US | ADVIN - Advin Services LLC | 4.4K | 4.1K | 22 |
| AS23349US | FARMERS-NETWORK-WEST - Farmers Group, Inc. | 4.4K | — | 17 |
| AS396948US | CLOUDWEBMANAGE-SC - Kamatera, Inc. | 4.4K | 2 | 19 |
| AS4243US | WELLSFARGO-4243 - Wells Fargo Bank, N.A. | 4.4K | — | 14 |
| AS11990US | UNLIMITEDNET - Unlimited Net, LLC | 4.4K | 4.1K | 9 |
| AS13917US | CORPWEST - Corporate West Computer Systems, Inc. | 4.4K | 65.5K | 3 |
| AS18647US | ACCEL-AS - Accel Net, Inc. | 4.4K | — | 2 |