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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| APEXCOVANTAGE-192-74-136 - Apex CoVantage, LLC |
| 256 |
| — |
| 1 |
| AS397668US | IFC - Infocrest Systems LLC | 256 | — | 1 |
| AS40105US | PRV-GAF-US-SE - PriVerify Corp. | 256 | — | 1 |
| AS396957US | NDBH-ASNUMBER - New Directions Behavioral Health, LLC | 256 | — | 1 |
| AS13509US | AS-SNCH-1 - Mount Sinai South Nassau | 256 | — | 1 |
| AS22810US | BROOKS-AUTOMATION - Brooks Automation Inc. | 256 | — | 1 |
| AS14801US | HPU - Hawaii Pacific University | 256 | — | 1 |
| AS46965US | SHAKESPEARETHEATRE - Shakespeare Theatre Company | 256 | — | 1 |
| AS33228US | SOFTIRON-ASN-SJC - SoftIron | 256 | 1 | 2 |
| AS46116US | FIXNETIX-ARIN-BGP-ASN - Fixnetix Inc | 256 | — | 1 |
| AS394331US | NSX - NDIT Solutions | 256 | — | 1 |
| AS398389US | PIONEERFCU-01 - Pioneer FCU | 256 | — | 1 |
| AS1627US | TOWNEBANK - TowneBank | 256 | — | 1 |
| AS397963US | DSD2 - Dallas School District No. 2 | 256 | — | 1 |
| AS397537US | MARINERS-GW - The Baseball Club of Seattle, LLLP | 256 | — | 1 |
| AS30179US | DWS-01 - DWS | 256 | 512 | 6 |
| AS33534US | OTICONUS-COM - OTICON, INC. | 256 | — | 1 |
| AS26365US | IOT-PRIMARY - Image One Technologies | 256 | 1 | 2 |
| AS203436US | ScaleBit ScaleBit Technologies, L.L.C. | 256 | — | 1 |
| AS22259US | VITAMIX-001 - Vita-Mix Corporation | 256 | — | 1 |
| AS393557US | PCMC - Park City Municipal Corporation | 256 | — | 1 |
| AS21610US | SAP-SE-YVR - SAP America Inc. | 256 | — | 1 |
| AS40236US | NMTCDBAMATCOTOOLS - Matco Tools | 256 | — | 1 |
| AS27455US | WT-ASN - Williams Trading LLC | 256 | — | 1 |
| AS53640US | VNB-RIDGEFIELD - Valley National Bank | 256 | — | 1 |
| AS395727US | ASN-INTELLIC - Intellicom Computer Consulting, Inc. | 256 | — | 1 |
| AS46679US | AS-REDCOM-NET - REDCOM Laboratories, Incorporated | 256 | — | 1 |
| AS14816US | HKUASN - Metabo HPT | 256 | — | 1 |
| AS396272US | HOUSTON-TEXANS - Houston Texans | 256 | — | 1 |
| AS397737US | RLASD-ISP - Red Lion Area School District | 256 | — | 1 |
| AS401515US | BNY-INS-EME-HLW - The Bank of New York Mellon Corporation | 256 | — | 1 |
| AS25987US | WESTCHESTER-LIBRARY - Westchester Library System | 256 | — | 1 |
| AS394048US | GSE-LINK-01 - Global Satellite Engineering, Inc | 256 | 4.1K | 2 |
| AS396951US | TC-EQ-DA3 - TransCanada Pipelines Limited | 256 | — | 1 |
| AS399815US | LAER-AS-SYD1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS397284US | OCHS-01 - Oakland Catholic High School | 256 | — | 1 |
| AS22209US | RUDYS-AS - RUDYS INFLIGHT CATERING | 256 | — | 1 |
| AS396031US | ATLANTA-CS-1 - 1923327 ONTARIO INC | 256 | 1 | 2 |
| AS398151US | ASN-FOR-MULTIHOMING - LYLAB Technology Solutions, Inc. | 256 | — | 1 |
| AS398338US | DOLLAR DISCOUNT HOSTING - Dollar Discount Hosting LLC | 256 | 263 | 9 |
| AS401652US | FOREVER-BUCKET - FOREVER BUCKET, INC. | 256 | 257 | 3 |
| AS401509US | BAYHEALTH-MEDICAL-CENTER-INC - Bayhealth Medical Center, Inc. | 256 | — | 1 |
| AS40903US | KENNETWORK - Turbine Inc. | 256 | — | 1 |
| AS398344US | HGTECH - Higher Ground Technologies | 256 | — | 1 |
| AS46688US | LANDSCAPE-STRUCTURES - Landscape Structures, Inc. | 256 | — | 1 |
| AS401232US | ETECHGS-INDIA - Etech Texas, LLC | 256 | — | 1 |
| AS399919US | AS-ALOMERE-HEALTH - Alomere Health | 256 | — | 1 |