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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 2K |
| — |
| 5 |
| AS40790US | BCG-NETWORK - BCG Attorney Search | 2K | — | 2 |
| AS22480US | SOCOLO-AS - Beulahland Communications, LLC | 2K | — | 4 |
| AS26716US | NETCRACKER - NetCracker Technology, Corporation | 2K | 1 | 9 |
| AS393780US | HYPER-ASNET - Hyper Networks LLC | 2K | — | 6 |
| AS33189US | SOUTH-DAKOTA-RESEARCH-AND-EDUCATION-NETWORK - South Dakota Board of Regents | 2K | 65.5K | 6 |
| AS398981US | FSCJ - FSCJ | 2K | — | 5 |
| AS395349US | CLOUDSAFE-PROVIDER - Cloudsafe, Ltd. | 2K | 65.5K | 7 |
| AS27163US | INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp | 2K | — | 6 |
| AS14849US | SCSD-AS - Superior Court of California, County of San Diego | 2K | — | 5 |
| AS26216US | INVISALINKWIRELESSMI - Invisalink Wireless | 2K | 65.5K | 9 |
| AS25713US | AS-DTS - Dollar Tree | 2K | — | 5 |
| AS402289US | WEBGIST - Webgist LLC | 2K | — | 8 |
| AS397463US | WASHINGTON-ISLAND-ELECTRIC-COOP - Washington Island Electric Cooperative, Inc. | 2K | 69.6K | 4 |
| AS397886US | SUPERNET - SUPERNet | 2K | — | 5 |
| AS16939US | CARETECH-SOLUTIONS - CARETECH SOLUTIONS INC | 2K | — | 8 |
| AS15328US | DATAPRISE-INC - Dataprise, Inc. | 2K | — | 8 |
| AS401015US | SCIENCE-DMZ-RESEARCH-NETWORK - Association for Computing Machinery, Inc. | 2K | 1 | 2 |
| AS14524US | SERCO-NA - SERCO NA | 2K | — | 7 |
| AS11523US | AS-HLEEM - H. Lee Moffitt Cancer Center & Research Institute, Inc. | 2K | — | 5 |
| AS8046US | NAPANET - NapaNet | 2K | 1 | 2 |
| AS36339US | SMART-CITY-SACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2K | 16 | 5 |
| AS27240US | NETAS-STL - Netelligent Corporation | 2K | — | 8 |
| AS54396US | NUANCE-MOBILITY - Microsoft Corporation | 2K | — | 1 |
| AS14408US | AS-EMPIRECLS-SECAUCUS - Empire International, Ltd. | 2K | — | 8 |
| AS11973US | SECUREINDEPENDENCE - Secure Independence, Inc | 2K | — | 1 |
| AS16620US | ALCAZAR-EAST - Alcazar Networks, Inc | 2K | — | 1 |
| AS14134US | NAVISITE-WEST-2 - Navisite Opco LLC | 2K | — | 1 |
| AS33213US | BASIN-NET - BASIN 2 WAY RADIO | 2K | — | 8 |
| AS22441US | WHITWORTH-NET - Whitworth University | 2K | — | 5 |
| AS20333US | OPSUS-NET - Cloudwave | 2K | — | 8 |
| AS2621US | DNIC-AS-02621 - United States Department of Defense (DoD) | 2K | — | 2 |
| AS398996US | CALCAS-CSC - California Casualty Management Company | 2K | — | 2 |
| AS396284US | QSRGROUP - QSR GROUP LLC. | 2K | — | 8 |
| AS36741US | FRONTIER-AIRLINES-INC - FRONTIER AIRLINES INC | 2K | 258 | 8 |
| AS64281US | NET3-ISP - Ridgewood Holdings LLC | 2K | — | 6 |
| AS46536US | VIASAT-CARLSBAD - ViaSat, Inc. | 2K | — | 8 |
| AS10868US | DOWNCITY - DownCity LLC | 2K | — | 1 |
| AS11190US | SILCON - Silicon Connections, LLC. | 2K | — | 1 |
| AS26207US | WHDOT-LLC - WHDOT LLC | 2K | — | 7 |
| AS53324US | WILLARD-NET - LOCAL TV AND ELECTRONICS, INC. | 2K | — | 1 |
| AS397427US | BRADFORD-BROADBAND - Bradford Broadband, LLC | 2K | 69.6K | 12 |
| AS46399US | WAVELINC-1 - Wavelinc Communications LLC | 2K | — | 5 |
| AS19071US | MATCHCOM - Match Group, LLC | 2K | — | 6 |
| AS205958US | Global-Network-Point-LLC Global Network Point LLC | 2K | 524.3K | 5 |
| AS393819US | LACKAWANNA-COUNTY - Lackawanna County Government | 2K | 65.5K | 6 |
| AS16501US | I2C-ASN - i2c Incorporated | 2K | — | 8 |