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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,094 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,709 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,423 |
| — |
| — |
| 0 |
| AS29908US | TECH-CLOUD-ASN - Tech Electronics, Inc. | — | — | 0 |
| AS29915US | STATEFARM-ISCE - State Farm Mutual Automobile Insurance Company | — | — | 0 |
| AS30015US | RISE-NE-MICROLNK-AS30015 - JAB Wireless, INC. | — | — | 0 |
| AS30142US | 24-7-AS-IDC-002 - 247.ai, Inc. | — | — | 0 |
| AS30145US | PCUC-AS - PostUp LLC | — | — | 0 |
| AS30191US | ALLUVION-GLEC - Alluvion Communications | — | — | 0 |
| AS30239US | TRAVELPORT - Travelport Operations, Inc. | — | — | 0 |
| AS30292US | SHRINE - AEG | — | — | 0 |
| AS30304US | LTD-ASN-01 - LTD COMMODITIES LLC | — | — | 0 |
| AS30380US | IPOWER-2 - Newfold Digital, Inc. | — | — | 0 |
| AS30391US | ISCINT - ISC INTERNATIONAL, LTD. | — | — | 0 |
| AS30439US | MEMPHIS-DAILY-NEWS - Memphis Daily News | — | — | 0 |
| AS30488US | SPRINGS - Springs Industries, Inc. | — | — | 0 |
| AS30694US | KLAS-5527 - Keystone Systems, Inc. | — | — | 0 |
| AS30696US | TETN-I2 - Texas Education Agency | — | — | 0 |
| AS30705US | FARGO-VOXTELESYS-01 - Voxtelesys LLC | — | — | 0 |
| AS31792US | PHONEFACTOR-01 - Microsoft Corporation | — | — | 0 |
| AS31802US | COSR - City of San Rafael | — | — | 0 |
| AS31805US | ENCINO - Answer Financial Inc. | — | — | 0 |
| AS31838US | OPNET - OPNET Technologies | — | — | 0 |
| AS31873US | CHARTER-31873-NA - Charter Communications LLC | — | — | 0 |
| AS31970US | LIVESTREAM-USA-1 - Livestream LLC | — | — | 0 |
| AS32015US | LUTRON-ELECTRONICS - LUTRON ELECTRONICS CO., INC. | — | — | 0 |
| AS32036US | CYBERARK - CYBER-ARK SOFTWARE | — | — | 0 |
| AS32054US | BAYRIA - Bayria.com | — | — | 0 |
| AS32079US | AUTONATION-ASP3 - Autonation, Inc | — | — | 0 |
| AS32238US | NAES-32238 - NAES Corp | — | — | 0 |
| AS32240US | CROWN-ASN-01 - Crown College | — | — | 0 |
| AS32254US | KYNEX-AS1 - Kynex Inc. | — | — | 0 |
| AS32317US | HFCC - Henry Ford College | — | — | 0 |
| AS32376US | PATIENT-FIRST - PATIENT FIRST CORPORATION | — | — | 0 |
| AS32462US | TMARZETTI - T. Marzetti Company | — | — | 0 |
| AS32676US | AS-TIERP-32676 - TierPoint, LLC | — | — | 0 |
| AS32690US | CAES SYSTEMS LLC - CAES Systems LLC | — | — | 0 |
| AS32731US | AS-CBTS - Code Blue Technology Solutions | — | — | 0 |
| AS32855US | CENTURYLINK-LEGACY-EMBARQ-TSDS-CRLSPA - CenturyLink Communications, LLC | — | — | 0 |
| AS32919US | ISP-PROMESA - Promesa Enterprises Inc. | — | — | 0 |
| AS32948US | LLS-HO-AS - LEUKEMIA & LYMPHOMA SOCIETY | — | — | 0 |
| AS32968US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS33021US | PBVUSD - Panama-Buena Vista Union School District | — | — | 0 |
| AS33076US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33106US | SEP-TECH-CONSULTING - SEP Technology Consulting, LLC | — | — | 0 |
| AS33126US | CADENT-LLC - Cadent, LLC | — | — | 0 |
| AS33220US | OB-AS-EU - Bloomberg Financial Markets Limited Partnership | — | — | 0 |
| AS33332US | CHARTER-33332-NA - Charter Communications LLC | — | — | 0 |
| AS33366US | STONE-HARBOR-INVESTMENT-PARTNERS - Stone Harbor Investment Partners, LP | — | — | 0 |