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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS395469US | FINDLAY-AUTOMOTIVE - Findlay | — | — | 0 |
| AS395106US | BPR-OF-TN-AS - Board of Professional Responsibility of the Supreme Court of Tennessee | — | — | 0 |
| AS219187US | Tangtech-Internet-Services Tangtech Internet Services LLC | — | 16 | 1 |
| AS396593US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS394847US | AFS-4 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS394585US | MITE-AS - MITE Corporation | — | — | 0 |
| AS394487US | LTDBROADBAND-WATERTOWN - LTD Broadband LLC | — | — | 0 |
| AS15047US | CRABEL-CAPITAL-MANAGEMENT-LLC - Crabel Capital Management, LLC | — | — | 0 |
| AS4384US | MULTI-NET - Husky Labs, Inc. | — | — | 0 |
| AS397758US | DATAROBOT-01 - DataRobot, Inc. | — | — | 0 |
| AS397541US | FINRA-CAT - FINRA | — | — | 0 |
| AS11944US | LTC-1 - LaValle Telephone Cooperative | — | 256 | 1 |
| AS15240US | INSIGHT2PROFIT - Insight2Profit | — | — | 0 |
| AS16634US | AM-EX2 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS16540US | BLUEROOSTER-ASN - Wave Broadband | — | — | 0 |
| AS16510US | IHSENERGY-FIELDDIRECT - IHS Global, Inc. | — | — | 0 |
| AS14910US | CENTURYLINK-LEGACY-EMBARQ-PLYMOUTH - CenturyLink Communications, LLC | — | — | 0 |
| AS398253US | KYOYA-HNLWS-MEZZANINE-01 - Sheraton Waikiki Beach Resort | — | — | 0 |
| AS14880US | TECHOPS-ASN-5 - Live Nation Entertainment, Inc. | — | — | 0 |
| AS211562US | andrewnet andrewnet llc | — | 262 | 7 |
| AS13321US | BROADWAY-BANDWIDTH2 - Technet International | — | — | 0 |
| AS18788US | WEC - WEC Business Services LLC | — | — | 0 |
| AS17332US | TAXACT2 - 2nd Story Software, Inc. | — | — | 0 |
| AS14629US | ASN-PFCS - PFCS Corporation | — | — | 0 |
| AS12197US | DRUGSTORE-COM - Drugstore.Com, Inc. | — | — | 0 |
| AS16936US | SYNACOR-TECHNORAT-IP-ALLOCATION - Synacor, Inc. | — | — | 0 |
| AS13425US | JUNO-DC-1 - Juno Online Services, Inc. | — | — | 0 |
| AS399624US | LECTRON - Lectron | — | — | 0 |
| AS398661US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS398595US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398591US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS400888US | AWS-DIRECT-ASN - Spy Fu, Inc. | — | — | 0 |
| AS398353US | USCIS-ASN-01 - USCIS | — | — | 0 |
| AS400714US | ABH-AS - AB Handshake Corporation | — | — | 0 |
| AS402004US | RS - Rui Sun, Sole Proprietorship | — | 2 | 2 |
| AS396767US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS399822US | FARWEST-STEEL-CORP - Farwest Steel Corporation | — | — | 0 |
| AS400148US | BULK-SOLUTIONS-01 - Bulk Solutions, LLC | — | 256 | 1 |
| AS399583US | OPM-AZURE - Office of Personnel Management | — | — | 0 |
| AS397064US | BAYFIELD-WIRELESS - Bayfield Wireless | — | — | 0 |
| AS54441US | RAVENNACREEK-AS-1 - RAVENNA CREEK, LLC | — | 16 | 1 |
| AS396825US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS402266US | SLDNET - Salad Technologies, Inc. | — | 108 | 108 |
| AS18969US | KLC-AS-1 - Knowledge Learning Corporation | — | — | 0 |
| AS396678US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS397615US | RTVI - RTVI | — | — | 0 |