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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 |
| — |
| 3 |
| AS25889US | BXS-NET-AS - BancorpSouth, Inc. | 1K | — | 2 |
| AS4393US | TIME-INC - Meredith Corp. | 1K | — | 4 |
| AS36533US | 698ALEX - Computer Solutions | 1K | — | 1 |
| AS219425US | SKYLINE-APP Skyline App LLC | 1K | 339 | 28 |
| AS201573US | KANDYKSF Skyvera LLC | 1K | — | 4 |
| AS54671US | WPCASN - WALSWORTH PUBLISHING COMPANY | 1K | — | 4 |
| AS219502US | STORMCLOUD-AS Storm Industries LLC | 1K | — | 4 |
| AS393968US | GOLDKEY-CORPORATION - GoldKey Corporation | 1K | — | 4 |
| AS36655US | THORN-36655 - Thornton Township High Schools District 205 | 1K | — | 1 |
| AS10908US | CLOUDFLOORAS-0 - CloudfloorDNS | 1K | 4 | 8 |
| AS3789US | ESSENTIAHEALTH-3789 - Essentia Health East | 1K | — | 4 |
| AS21519US | SBG-AS2 - Sinclair Broadcast Group, Inc. | 1K | — | 1 |
| AS46424US | NJTA - New Jersey Turnpike Authority | 1K | — | 4 |
| AS30525US | GLS-CLT1-01 - Global Linking Solutions | 1K | 257 | 6 |
| AS396121US | BAYER-BERKELEY - Bayer Corporation | 1K | — | 3 |
| AS31874US | LPS-4 - Black Knight IP Holding Company, LLC | 1K | — | 3 |
| AS21989US | SPECTRUM-BRANDS - Spectrum Brands, Inc. | 1K | — | 3 |
| AS29986US | GOLDLASSO-AS - Gold Lasso, Inc. | 1K | — | 3 |
| AS395594US | CONSUMERSENERGYCO-ASN - Consumers Energy Company | 1K | — | 2 |
| AS16538US | PDC - Pacific Disaster Center | 1K | — | 1 |
| AS13349US | TCU-NET - TEACHERS CREDIT UNION | 1K | — | 3 |
| AS394945US | EXPD-ASN - Expeditors International of Wa Inc. | 1K | — | 4 |
| AS20197US | NCRC-KANNAPOLIS - Castle & Cooke North Carolina, LLC | 1K | — | 3 |
| AS3688US | HSS-1 - Hospital for Special Surgery | 1K | — | 3 |
| AS40335US | WBTSNY-AS - Watchtower Bible and Tract Society of New York, Inc. | 1K | 65.5K | 2 |
| AS53617US | ECSFI - ECS Financial Services, Inc. | 1K | — | 2 |
| AS20441US | SL-2182-20441 - SAGILITY LLC | 1K | — | 1 |
| AS54748US | HUDSONBAY - Hudson Bay Capital Management LP | 1K | — | 4 |
| AS394620US | VCSVCS - VCSVCS Inc | 1K | — | 4 |
| AS206819US | markahost-llc Markahost LLC | 1K | — | 1 |
| AS402302US | HOSTMYAPPLE - HostMyApple Inc. | 1K | — | 1 |
| AS12018US | OOCL-SJC - OOCL (USA), Inc. | 1K | — | 4 |
| AS17026US | SHRSS-ASN-01 - Seminole Hard Rock Support Services,LLC | 1K | — | 3 |
| AS63415US | GREAT-HEALTHWORKS-4150-BUILDING - Great Healthworks, Inc | 1K | 1 | 5 |
| AS395802US | TBC-TL754 - TBConsulting LLC | 1K | — | 1 |
| AS26303US | LSUAGCENTER - LSU AgCenter | 1K | — | 4 |
| AS394832US | ALLCAREHEALTH - AllCare Management Services, LLC | 1K | — | 4 |
| AS10580US | ARRIS-TECHNOLOGY-SD-NOC - ARRIS Technology, Inc. | 1K | — | 1 |
| AS14013US | EPSON-ROBOTS - EPSON America (Factory Automation/Robotics) | 1K | — | 1 |
| AS23281US | CITY-OF-SACRAMENTO - City of Sacramento | 1K | — | 4 |
| AS400911US | FAO-PHIRE - PhireLink | 1K | — | 1 |
| AS17285US | VIAMEDIA-LEX-KY - Viamedia, Inc. | 1K | — | 1 |
| AS33586US | RLPOLK-US - R. L. Polk & Company | 1K | — | 4 |
| AS32520US | DN-OH1 - Diebold Nixdorf, Incorporated | 1K | — | 4 |
| AS26023US | SCHWANS-SHARED-SERVICES - Schwan's Shared Services, LLC. | 1K | — | 4 |
| AS46522US | COH - City of Henderson, Nevada | 1K | — | 1 |