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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 1K |
| — |
| 3 |
| AS5054US | REALNETWORKS - REALNETWORKS LLC | 1K | — | 1 |
| AS18827US | VGMFORBIN - Forbin | 1K | — | 1 |
| AS31829US | HRVAS - Heruvim, Inc | 1K | — | 3 |
| AS216174US | ASN-SNL Spearware Networks LLC | 1K | 273 | 7 |
| AS17294US | BI-631 - Build io, Inc. | 1K | — | 1 |
| AS29891US | NCCWO-ASN1-VZBLVL3CMCST - National Cable Communications LLC | 1K | — | 4 |
| AS3688US | HSS-1 - Hospital for Special Surgery | 1K | — | 3 |
| AS33672US | TITAN-LABS-AI-01 - Titan Labs USA, LLC | 1K | — | 1 |
| AS33062US | ALEXLEE-INC - ALEX LEE INC | 1K | — | 2 |
| AS53620US | PINTEREST - Pinterest, Inc. | 1K | 2 | 6 |
| AS53760US | XT-NEWORLEANS - Xenir, LLC | 1K | — | 2 |
| AS31951US | NASADSN-AS - NASA Deep Space Network (DSN) | 1K | — | 1 |
| AS214140US | Yaman-Hosting-LLC Yaman Hosting LLC | 1K | — | 4 |
| AS13471US | AS13471 - PFS Web | 1K | — | 4 |
| AS20441US | SL-2182-20441 - SAGILITY LLC | 1K | — | 1 |
| AS4867US | CBOE - Cboe | 1K | — | 4 |
| AS33627US | VISTEON - VISTEON CORPORATION | 1K | — | 4 |
| AS12134US | MTB - Manufacturers and Traders Trust Company | 1K | — | 4 |
| AS11339US | HAX-ASN-01 - Haxtun Telephone Company | 1K | — | 4 |
| AS33538US | MIMECAST-CA - Mimecast North America Inc | 1K | 2 | 4 |
| AS401254US | NETSOLV-NETSOLV-01 - NETSOLVE NETWORK TECHNOLOGY LIMITED | 1K | — | 4 |
| AS46471US | MCRESAS01 - Madison Commercial Real Estate Services, LLC | 1K | — | 1 |
| AS21968US | LAURINBURG - CITY OF LAURINBURG | 1K | — | 1 |
| AS402302US | HOSTMYAPPLE - HostMyApple Inc. | 1K | — | 1 |
| AS394832US | ALLCAREHEALTH - AllCare Management Services, LLC | 1K | — | 4 |
| AS3789US | ESSENTIAHEALTH-3789 - Essentia Health East | 1K | — | 4 |
| AS63472US | EINETWORK - eiNetwork | 1K | — | 1 |
| AS29840US | GRAM-NET2 - Grambling State University | 1K | — | 4 |
| AS31832US | ASN-MDT - Member Driven Technologies | 1K | — | 1 |
| AS399399US | LUXOTTICA-NA - Luxottica of America Inc. | 1K | — | 4 |
| AS13843US | PHOENIX-AMERICAN - Phoenix American Inc. | 1K | — | 1 |
| AS395451US | HOSTIT - HostIT Servers | 1K | — | 1 |
| AS36072US | 12COMMAS - 12 Commas LLC | 1K | 256 | 2 |
| AS23281US | CITY-OF-SACRAMENTO - City of Sacramento | 1K | — | 4 |
| AS396011US | NISOURCE-CORPORATE-SERVICES-COMPANY - NiSource Corporate Services Company | 1K | — | 4 |
| AS398223US | POMONA-01 - Pomona Consulting LLC | 1K | 6 | 10 |
| AS32258US | VELOCITY-FUSION - Velocity Fusion | 1K | — | 4 |
| AS393587US | ULTATG - Ulta, Inc. | 1K | — | 4 |
| AS14013US | EPSON-ROBOTS - EPSON America (Factory Automation/Robotics) | 1K | — | 1 |
| AS30001US | TECHEVOLUTION - Techevolution | 1K | — | 1 |
| AS53307US | YISG - Sedgwick Claims Management Services, Inc. | 1K | — | 3 |
| AS32484US | BOWTIE - Fontainebleau Las Vegas | 1K | 65.5K | 4 |
| AS22296US | VORSK - Vorsk LLC | 1K | 2 | 6 |
| AS40049US | ESC-2 - Education Service Center, Region 2 | 1K | — | 1 |
| AS54882US | CONNECTIVITY-IN-A-BOX - Connectivity In a Box, LLC | 1K | — | 4 |
| AS20197US | NCRC-KANNAPOLIS - Castle & Cooke North Carolina, LLC | 1K | — | 3 |