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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS29880US | FFIL-ASN - FLEXIBLE FREEDOM INNOVATIONS LLC | — | — | 0 |
| AS29896US | INNOVATIVE-INTERFACES-INC-2 - Innovative Interfaces, Inc. | — | — | 0 |
| AS30125US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30186US | CLOUD-SYNCINC - Cloud Sync Inc | — | — | 0 |
| AS30246US | CYRUSONE-CIN2 - CyrusOne LLC | — | — | 0 |
| AS30261US | TREASURE-STATE-INTERNET - Treasure State Internet | — | — | 0 |
| AS30287US | IAAWG - IA American Warranty Corp | — | — | 0 |
| AS30353US | IMB-SBC - International Mission Board of the Southern Baptist Convention | — | — | 0 |
| AS30354US | NETRI-17 - Netrix LLC | — | — | 0 |
| AS30421US | PRC-PA - Placid Refining Company LLC | — | — | 0 |
| AS30441US | SOUTHPOINT-1114-6TH-AVE - Southpoint Capital Advisors, LP | — | — | 0 |
| AS30469US | VONAGE-03 - Vonage Holdings, Inc. | — | — | 0 |
| AS30473US | ETHANALLEN - Ethan Allen Global, Inc. | — | — | 0 |
| AS30504US | PROFITABILITY - Profitability.net | — | — | 0 |
| AS30527US | ASN-USMARCHON - Marchon Eyewear Inc. | — | — | 0 |
| AS30552US | SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta, Inc. | — | — | 0 |
| AS30566US | WOLP-ASN - Whippoorwill Operations, L.P. | — | — | 0 |
| AS30608US | UNIVERSITY-OF-PHOENIX-CX - Aptimus | — | — | 0 |
| AS30649US | PRINCIPALS - National Association of Secondary School Principals | — | — | 0 |
| AS30702US | AS-DYMIN-SYSTEMS - Dymin Systems, Inc. | — | — | 0 |
| AS31762US | KIOSWIRELESSLLC - KIOSK WIRELESS | — | — | 0 |
| AS31808US | ISCKY - Computer Mendtor LLC | — | — | 0 |
| AS31820US | ETC-ASN - ELECTRONIC THEATRE CONTROLS, INC. | — | — | 0 |
| AS31879US | PBM - EPLUS, Inc. | — | — | 0 |
| AS31932US | AFS-KC - Zayo Bandwidth | — | — | 0 |
| AS31946US | MEX-EXCHANGE - MEX Exchange Corp. | — | — | 0 |
| AS31982US | BRAHMAN-NY - Brahman Capital | — | — | 0 |
| AS32014US | FASTROOT - Steadfast | — | — | 0 |
| AS32074US | CPTSL-32074 - CrossLink Professional Tax Solutions, LLC | — | — | 0 |
| AS32120US | 1STUNITEDCU-ASN - 1st United Credit Union | — | — | 0 |
| AS32163US | BLIZZARD - BLIZZARD ENTERTAINMENT INC | — | — | 0 |
| AS32195US | ESI-EMR - Eisai Inc. | — | — | 0 |
| AS32390US | SARATOGA-TECHNOLOGY-ACCELERATOR - Saratoga Technology Accelerator, LLC | — | — | 0 |
| AS32401US | BP-47-32401 - Bright Packet, Inc. | — | — | 0 |
| AS32405US | SBEC-ADMIN-01 - S&B Administrative Services, Ltd. | — | — | 0 |
| AS32427US | AUNTMILLIES01 - Aunt Millie's Bakeries | — | — | 0 |
| AS32439US | ALTOVA-BOS - Altova, Inc. | — | — | 0 |
| AS32498US | NEFCU-ASN - New England Federal Credit Union | — | — | 0 |
| AS32515US | JBSNET007 - JBS, Inc. | — | — | 0 |
| AS32543US | CHARTER-32543-NA - Charter Communications LLC | — | — | 0 |
| AS32569US | PRESSGANEYASSOC - PRESS GANEY ASSOCIATES INC | — | — | 0 |
| AS32640US | ML-PRIMARY - MultiLynq LLC | — | — | 0 |
| AS32679US | HAT-CITY-01 - Connex Intl | — | — | 0 |
| AS32741US | HPINC - HP Inc. | — | — | 0 |
| AS32753US | GLOBEOP-FINANCIAL-SERVICES-NYC1 - GlobeOp Financial Services | — | — | 0 |
| AS32769US | MCFA - MITSUBISHI LOGISNEXT AMERICAS INC | — | — | 0 |