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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| DC09 - DC09, LLC. |
| 256 |
| — |
| 1 |
| AS32295US | DESIGNCOLLECTIVE - Design Collective, Inc. | 256 | — | 1 |
| AS21800US | AIT-24PLN-ASN - Advanced Integration Technology, LP | 256 | — | 1 |
| AS19859US | FLAIR-DATA-SYSTEMS - Flair Data Systems | 256 | — | 1 |
| AS400020US | GRANTEP-ASN - Grant Supplies | 256 | — | 1 |
| AS62529US | AS-APEX - Apex Development Group LLC | 256 | 4.1K | 2 |
| AS402160US | AS-TCMSD-001 - Truth or Consequences Municipal Schools | 256 | 256 | 2 |
| AS40075US | RADIOLOGYLTD-ASN - Radiology LTD | 256 | — | 1 |
| AS32917US | RANDALLCOUNTY-01 - Randall County Texas | 256 | — | 1 |
| AS399627US | CITY-OF-MOUNTAIN-VIEW - City of Mountain View | 256 | — | 1 |
| AS18900US | CQG-INC - CQG, Inc. | 256 | — | 1 |
| AS26698US | PSA-INC - PARAMOUNT SOFTWARE ASSOCIATES, INC. | 256 | — | 1 |
| AS36740US | VCCC-2 - Volusia County Clerk of the Courts | 256 | — | 1 |
| AS21764US | CFCU-CORP - Clearview Federal Credit Union | 256 | — | 1 |
| AS46089US | AS2-NAVIS - Navis | 256 | — | 1 |
| AS401261US | AXOSBANK-AS - AXOS BANK | 256 | — | 1 |
| AS395435US | GAIA - Gaia | 256 | — | 1 |
| AS31813US | FREEDOMLINX-TECHNOLOGIES - FreedomLinx Technologies | 256 | — | 1 |
| AS399665US | ZOLL-BROOMFIELD - ZOLL Medical Corporation | 256 | — | 1 |
| AS6955US | DANDH - D&H Distributing Company | 256 | — | 1 |
| AS54089US | OPTECH - Operational Technologies Corporation | 256 | — | 1 |
| AS30479US | RLC-ASN-01 - Red Lion Controls, Inc. | 256 | — | 1 |
| AS395646US | NEUTRAL-NETWORKS - Neutral Networks | 256 | 65.5K | 2 |
| AS62961US | BISNET1 - Blueshift Information Systems Inc. | 256 | — | 1 |
| AS396161US | DSM-AIRPORT-AUTHORITY - Des Moines Airport Authority | 256 | — | 1 |
| AS19692US | EMH - Ephraim McDowell Health, Inc. | 256 | 256 | 2 |
| AS11823US | LORDABBETTCO - Lord, Abbett & Co. | 256 | — | 1 |
| AS394193US | CMNJ-ASN - County of Morris OIT | 256 | — | 1 |
| AS54297US | SRS-AS - Savannah River Site | 256 | 1 | 2 |
| AS22583US | CBOE - Cboe | 256 | — | 1 |
| AS397587US | DATAXPORT-ELP - DataXport.Net, LLC | 256 | — | 1 |
| AS19817US | MIU-IA - Maharishi International University | 256 | — | 1 |
| AS395027US | AGT-US-5800 - Ainsworth Game Technology, Inc. | 256 | — | 1 |
| AS32649US | FE-DC-BGP - FRANKLIN ELECTRIC CO., INC. | 256 | — | 1 |
| AS32456US | WALBRIDGE-ALDINGER-CO-DTW - Walbridge Aldinger Company | 256 | — | 1 |
| AS16655US | HARTWICK-01 - Hartwick College | 256 | — | 1 |
| AS53532US | CINNAMINSON-SCHOOLS - The Board of Education of the Township of Cinnaminson | 256 | — | 1 |
| AS48652US | V6Market Tnex Inc. | 256 | 65.5K | 2 |
| AS22973US | NORWEST-VENTURE - Norwest Venture Partners | 256 | — | 1 |
| AS395390US | ICSCVOICENET - ICS | 256 | — | 1 |
| AS29758US | SAMBATV-LAS - Samba TV, Inc. | 256 | 1 | 2 |
| AS397697US | WHE-ASN-01 - Wright-Hennepin Cooperative Electric Association | 256 | — | 1 |
| AS396221US | RADCC-ASN - Rainbow | 256 | — | 1 |
| AS16938US | EXCEL-NET-01 - Excelsior College | 256 | — | 1 |
| AS62732US | BCC-BGP - Boston Coach Corp. | 256 | — | 1 |
| AS36332US | ASN-NA-XIPE2 - Xipe | 256 | 1 | 2 |
| AS40569US | AS-HTR - Hosting Tornado LLC | 256 | 256 | 2 |