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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 |
| 512 |
| — |
| 2 |
| AS400705US | JMRH-NET - Highland Networks, LLC | 512 | — | 1 |
| AS27434US | DG-FASTCHANNEL - DG | 512 | — | 2 |
| AS36217US | IRONPATH - NetActuate, Inc | 512 | 1 | 3 |
| AS396918US | APPLE-BANK-FOR-SAVINGS - Apple Bank for Savings | 512 | — | 2 |
| AS396358US | BUBGP1 - Bellarmine University | 512 | — | 2 |
| AS30706US | EAMONTREAL - Electronic Arts, Inc. | 512 | — | 1 |
| AS17281US | AS-15 - CONSORTIUM FOR WORKER EDUCATION | 512 | — | 2 |
| AS14459US | ENTERTAINMENTPARTNERS-AS-A - Entertainment Partners | 512 | — | 2 |
| AS394176US | I-NET-USA - I-NET USA, LLC | 512 | — | 1 |
| AS397975US | BRITEFISH-01 - Realnets | 512 | — | 2 |
| AS36568US | WDSU-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS23513US | WHALEY - AL WHALEY/SUNNY SIDE COMPUTING | 512 | — | 2 |
| AS27303US | TGNA-WMAZ - TEGNA Inc. | 512 | — | 2 |
| AS22048US | WHOLE-FOODS - Whole Foods Market, Inc. | 512 | — | 2 |
| AS401518US | OAI-01 - OpenAI OpCo, LLC | 512 | — | 1 |
| AS12163US | AMHERST-HOLDINGS - Amherst Holdings LLC | 512 | — | 2 |
| AS400470US | REMC10-ASN - Tuscola Intermediate School District | 512 | — | 2 |
| AS397365US | AS190901 - Blade Broadband | 512 | — | 1 |
| AS401500US | KARRIER-ONE-01 - Karrier One Inc. | 512 | — | 1 |
| AS16647US | PERIMETERWATCH - Perimeterwatch Technologies, INC | 512 | — | 2 |
| AS22066US | CITY-OF-EAU-CLAIRE - City of Eau Claire | 512 | — | 1 |
| AS36574US | WYFF-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS396296US | HORIZON-CREDIT-UNION-57 - Horizon Credit Union | 512 | — | 2 |
| AS14697US | SCS-AS - SUPERIOR CENTRAL STATION, INC. | 512 | 1 | 2 |
| AS15319US | CSLNA-NJ-ASN - COSCO Shipping Lines (North America) Inc. | 512 | — | 2 |
| AS927US | QUINTILLION - Quintillion Subsea Operations, LLC | 512 | — | 2 |
| AS29726US | VONAGE-02 - Vonage Holdings, Inc. | 512 | — | 2 |
| AS400592US | GRID-COMMUNICATIONS - Grid Communications, Inc. | 512 | — | 2 |
| AS13470US | NAVAJOCOUNTYAZ - NAVAJO COUNTY | 512 | — | 2 |
| AS40632US | FGLIFE-COLO1 - Fidelity & Guaranty Life | 512 | — | 2 |
| AS40659US | BMW-GDCA-AS - BMW of North America, LLC (Group Data Centers America) | 512 | 2 | 4 |
| AS62628US | ZOOX - Zoox Labs, Inc. | 512 | 3 | 5 |
| AS397430US | KANE-COUNTY-GOV - County of Kane | 512 | — | 1 |
| AS32352US | MGRC - MCGRATH RENTCORP | 512 | — | 2 |
| AS55161US | DIGI-201302 - Digipress Inc | 512 | — | 2 |
| AS29994US | MR-MAHLE - Mark Mahle, LLC | 512 | 17 | 4 |
| AS26454US | HENRYSCHEIN - Henry Schein Inc | 512 | — | 2 |
| AS11931US | NYC-EDC-165 - NYCEDC | 512 | — | 2 |
| AS36178US | STEPHENGOULD-CORP - Stephen Gould Corporation | 512 | — | 1 |
| AS395849US | OXIDE - Oxide Computer Company | 512 | 1 | 3 |
| AS14786US | ALLURETELECOM - Allure Telecom Inc | 512 | — | 2 |
| AS18746US | MIG-BGP - Merchants Insurance Group | 512 | — | 2 |
| AS395510US | HUB66 - Hub66, Inc | 512 | 65.5K | 3 |
| AS32284US | CORP-BASHAS-AS1 - Bashas' Inc. | 512 | — | 2 |
| AS32159US | GUNGHO-SAS - GUNG HO LLC | 512 | — | 2 |
| AS395126US | BECKS - Beck's Superior Hybrids, Inc. | 512 | — | 2 |