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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 |
| 1.5K |
| — |
| 4 |
| AS55204US | TELESCAN - ClearPoint | 1.5K | — | 3 |
| AS36182US | ATG-36182 - Accretive Networks | 1.5K | — | 3 |
| AS62620US | IRVINECO - THE IRVINE COMPANY LLC | 1.5K | — | 3 |
| AS17309US | AS7260 - Roosevelt University | 1.5K | — | 6 |
| AS53498US | FORD-FOUNDATION - Ford Foundation | 1.5K | — | 3 |
| AS11756US | CHLA - Children's Hospital Los Angeles | 1.5K | — | 4 |
| AS12167US | LIGHTWAVE-DALLAS - LightWave Networks | 1.5K | 3 | 8 |
| AS13379US | BURBANK-SPN - Disney Worldwide Services, Inc. | 1.5K | — | 6 |
| AS399247US | FASTLINK-01 - Fastlink Communications LLC. | 1.5K | — | 2 |
| AS402436US | LV-NETWORKS - BEACON | 1.5K | — | 6 |
| AS35997US | UNITED-FINANCIAL-SERVICES - UFS LLC | 1.5K | — | 6 |
| AS19750US | AS-CRITEO - Criteo Corp. | 1.5K | 14 | 20 |
| AS13453US | DSRGLOBAL-COM - DIVERSIFIED SYSTEMS RESOURCES, LTD | 1.5K | — | 3 |
| AS393507US | GUSHISYS - Gush I Systems | 1.5K | 16 | 6 |
| AS31921US | MALONE-ASN - Malone University | 1.5K | 1 | 7 |
| AS53855US | RIPPLE-01 - Ripple | 1.5K | — | 6 |
| AS394671US | HCAS-1 - Hanson Communications, Inc. | 1.5K | — | 2 |
| AS25931US | SDXBF-DC-1 - Sodexo, Inc. | 1.5K | — | 6 |
| AS63123US | FAREWAY-NETWORK - Fareway Stores, Inc. | 1.5K | — | 3 |
| AS396526US | AS396526 - UNVIO, LLC | 1.5K | — | 6 |
| AS62671US | UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure | 1.5K | — | 3 |
| AS13352US | MTC-ASN - Mark G Thomas, Sole Proprietorship | 1.5K | 256 | 7 |
| AS15225US | PERSECO - Perseco | 1.5K | — | 6 |
| AS3474US | DNIC-AS-03474 - United States Department of Defense (DoD) | 1.5K | — | 6 |
| AS18995US | CLACKAMAS-ASN - Clackamas County | 1.5K | 256 | 3 |
| AS22600US | SFTC-MAIL-FAILOVER - San Francisco Superior Court | 1.5K | 4 | 7 |
| AS13698US | SHAWINDUSTRIES - Shaw Industries Group, Inc. | 1.5K | — | 6 |
| AS11227US | AS-DALLAS - Morningstar, Inc. | 1.5K | — | 4 |
| AS33089US | XACCELNETWORKS - Xaccel Networks LLC | 1.5K | 65.5K | 7 |
| AS32506US | ENL-17-AS - Experior Networks LLC | 1.5K | — | 6 |
| AS394002US | WONDERLINK-COMMUNICATIONS - Wonderlink Communications, LLC | 1.5K | — | 5 |
| AS22338US | ALLY-INVEST - Ally Financial Inc. | 1.5K | — | 4 |
| AS32062US | ARMSTRONGWORLD-01 - Armstrong World Industries, Inc. | 1.5K | — | 6 |
| AS40279US | FORESTRACKS - ForestRacks | 1.5K | 144 | 9 |
| AS23374US | FPUA - FPUAnet Communications | 1.5K | — | 2 |
| AS63154US | DCCC - Delaware County Community College | 1.5K | 512 | 8 |
| AS402139US | PEEKABO-ANYCAST - Peekabo Networks | 1.5K | — | 6 |
| AS396970US | COMMANDLINK - CommandLink, LLC | 1.5K | 4.1K | 8 |
| AS35953US | VIRTEL-16 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS398801US | NET-OPS-COMMUNICATIONS - Net Ops Communications, LLC | 1.5K | — | 3 |
| AS54963US | LUMENET - Lume Technologies Inc. | 1.5K | — | 4 |
| AS53254US | USSCO-AS - Essendant Co. | 1.5K | — | 4 |
| AS23023US | INTUITIVE - Intuitive Surgical, Inc. | 1.5K | — | 6 |
| AS9423US | SERVERKINGIOLLC-AS-AP - ServerKing.io, LLC | 1.5K | 4 | 9 |
| AS393582US | KHP-DLA-ASN-01 - VIDEO DIRECT SATELLITE & ENTERTAINMENT | 1.5K | 65.5K | 7 |
| AS395821US | PENNWISP - Penn Wisp, LLC | 1.5K | — | 2 |