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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 |
| VRSN-AC50-340 - VeriSign Global Registry Services |
| — |
| — |
| 0 |
| AS396701US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396719US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396733US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396772US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396797US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396838US | HADV - Hudson Advisors L.P. | — | — | 0 |
| AS396845US | DV-PRIMARY-ASN1 - Delivra, Inc. | — | — | 0 |
| AS397009US | REEDTECH-AS-01 - Reed Technologies LLC | — | — | 0 |
| AS397090US | HYPERION - Hyperion Materials & Technologies | — | — | 0 |
| AS397104US | ASLIN-778 - webdaa LLC | — | — | 0 |
| AS397124US | JCHLV - Virgin Hotels Las Vegas | — | — | 0 |
| AS397160US | SWLAW-ASN-01 - Southwestern Law School | — | — | 0 |
| AS397219US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397243US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397390US | LIVESTREAM-EXPRESS - WTA Tour INC | — | — | 0 |
| AS397431US | PMCWEB - Parrish Medical Center | — | — | 0 |
| AS397466US | MSFT-CCND - Microsoft Corporation | — | — | 0 |
| AS397481US | PPD-AS1 - Park Place Dealerships, LLC | — | — | 0 |
| AS397521US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS397671US | AAACENTRALPENN - AAA Central Penn | — | — | 0 |
| AS397677US | SIXPACKETS - SixPackets | — | — | 0 |
| AS397685US | REASNOR - Reasnor Telephone Company | — | — | 0 |
| AS397716US | BRENHAM-ISD-19 - Brenham Independent School District | — | — | 0 |
| AS397750US | ARGUS-AS397750 - Argus Business Solutions Group | — | — | 0 |
| AS397759US | LYNK-AS - Lynk | — | — | 0 |
| AS397783US | CITY-OF-PENSACOLA-1 - City of Pensacola | — | — | 0 |
| AS397816US | MISIGNAL - Surf Air Wireless, LLC | — | — | 0 |
| AS397899US | SYSTEM-SEVEN-01 - SYSTEMseven Services, LLC | — | — | 0 |
| AS398049US | HESKACORP-01 - Heska Corporation | — | — | 0 |
| AS398197US | REMOTE-SUB-SERVICES-01 - EpicUp Holdings Inc | — | — | 0 |
| AS398248US | NPC-V1 - The Northern Trust Company | — | — | 0 |
| AS398302US | Y12NSC - Y-12 National Security Complex | — | — | 0 |
| AS398445US | CYE-TECH-REM-01 - Cyemptive Technologies, Inc. | — | — | 0 |
| AS398508US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398512US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398527US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398594US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398604US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398612US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398631US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398633US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398674US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398676US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398678US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398690US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398691US | NXP-BUILD - Willis Towers Watson | — | — | 0 |