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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. | 211.2M | 21,253 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,249 |
| 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 | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,964 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,301 |
| DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS1607US | CAROLINA-DIGITAL-AS1607 - Carolina Digital Phone, Inc. | — | — | 0 |
| AS1608US | ITG - ITG INC | — | — | 0 |
| AS1660US | ANS-CORP-NY - Verizon Business | — | — | 0 |
| AS1664US | AOL-CORP - Yahoo Holdings Inc. | — | — | 0 |
| AS1749US | AS1749 - National Aeronautics and Space Administration | — | — | 0 |
| AS1753US | OBT-ESCOM - Ohio Bell Telephone Co. | — | — | 0 |
| AS1758US | AFMPCGW1-AS - Air Force Systems Networking | — | — | 0 |
| AS1789US | COGENT-1789 - Cogent Communications, LLC | — | — | 0 |
| AS1822US | PHXAS - Virtual Radiologic Corporation | — | — | 0 |
| AS1873US | HPINC - HP Inc. | — | — | 0 |
| AS1957US | ANSCIX-AS - Verizon Business | — | — | 0 |
| AS1984US | DNIC-AS-01984 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2139US | DOW1-AS - Houston Dow Center | — | — | 0 |
| AS2161US | HPINC - HP Inc. | — | — | 0 |
| AS2162US | HPINC - HP Inc. | — | — | 0 |
| AS2170US | HPINC - HP Inc. | — | — | 0 |
| AS2171US | HPINC - HP Inc. | — | — | 0 |
| AS2545US | STRATHOST - Air Force Systems Networking | — | — | 0 |
| AS2565US | QUANTUM-LOOPHOLE - Quantum Loophole, Inc. | — | — | 0 |
| AS2619US | DNIC-ASBLK-02616-02620 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2625US | DNIC-RAS-02625 - United States Department of Defense (DoD) | — | — | 0 |
| AS2627US | DNIC-AS-02627 - United States Department of Defense (DoD) | — | — | 0 |
| AS2696US | IREN-AS - Iowa Research and Education Network | — | — | 0 |
| AS2702US | INTERSERVE - Novx Systems, Inc | — | — | 0 |
| AS2743US | AFIWC01 - Air Force Systems Networking | — | — | 0 |
| AS2753US | LARSECOM - Larse Corporation | — | — | 0 |
| AS2771US | TRW-HSV - TRW Huntsville Operations | — | — | 0 |
| AS2826US | GDC4S-PACIFIC - General Dynamics Mission Systems, Inc. | — | — | 0 |
| AS2930US | NASCA-AS - Nat'l Academy of Sciences & Engineering | — | — | 0 |
| AS2948US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2956US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2958US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2975US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2981US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2982US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3002US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3015US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3036US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3063US | AS3063 - Parsons Corporation | — | — | 0 |
| AS3077US | CITI11 - Citigroup Inc. | — | — | 0 |
| AS3133US | HHS-PSC-ITIO - U.S. Dept. of Health and Human Services | — | — | 0 |
| AS3386US | USNET-AS - US Net Incorporated | — | — | 0 |
| AS3421US | ATTIS-ASN3421 - AT&T Enterprises, LLC | — | — | 0 |
| AS3436US | ESNET-AS - ESnet | — | — | 0 |
| AS3444US | ESNET-AS - ESnet | — | — | 0 |
| AS3457US | ORACLE-4 - Oracle Corporation | — | — | 0 |