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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| — |
| 0 |
| AS4070US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4099US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4056US | LASC-USAF - Lockheed Aeronautical Systems Company | — | — | 0 |
| AS402899US | PTLHL - Prestige | — | 524.3K | 1 |
| AS5273US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS6311US | OXNET-6311 - FirstLight Fiber, Inc. | — | — | 0 |
| AS6347US | CENTURYLINK-LEGACY-DIAMOND - CenturyLink Communications, LLC | — | — | 0 |
| AS6230US | GANET - Global Access Network | — | — | 0 |
| AS215188US | KALLSYMS Nicholas Gregory | — | 16 | 1 |
| AS399534US | CREATIVEWIRELESS-01 - Creative Wireless Technology Solutions, Inc. | — | — | 0 |
| AS5985US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5897US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS398811US | EQUINIX-EC-BO - Equinix, Inc. | — | — | 0 |
| AS399316US | SUNRISEFL-ASN-101 - City of Sunrise | — | — | 0 |
| AS5276US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS399236US | HYPER - Hypercom | — | — | 0 |
| AS35848US | GRIZZLINK - 20C, LLC | — | 16 | 1 |
| AS1285US | CMC-AS - Communication Machinery Corporation | — | — | 0 |
| AS398534US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS401278US | ZGOVPS - ZgoShop, Inc. | — | — | 0 |
| AS401154US | ASTRALSEC - Astral Security, Inc. | — | — | 0 |
| AS398514US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS400888US | AWS-DIRECT-ASN - Spy Fu, Inc. | — | — | 0 |
| AS400356US | TRITECH-WIRELESS-01 - Tritech Fiber | — | — | 0 |
| AS62900US | KERFUFFLE-62900 - Kerfuffle, LLC | — | 2 | 2 |
| AS7161US | CENTURYLINK-QC-MOE-WYOMING - CenturyLink Communications, LLC | — | — | 0 |
| AS6637US | INFOEX - Infoexchange/Sprint | — | — | 0 |
| AS402460US | UAMS-SCIENCE-DMZ - University | — | 1 | 1 |
| AS5689US | HOOSIERNET - HoosierNet, Inc. | — | — | 0 |
| AS6920US | TRADEMED-AS - Trade Media | — | — | 0 |
| AS6589US | ROZINT - Rozint | — | — | 0 |
| AS6576US | MCC-SUM - SUMMIT COMMUNICATIONS SYSTEM, INC. | — | — | 0 |
| AS8003US | LUNA-NETWORKS - Luna USA, LLC | — | — | 0 |
| AS7427US | MKTSYS - Market Systems International | — | — | 0 |
| AS7948US | GEOPLEX - AT&T | — | — | 0 |
| AS394082US | GOOGLE-PEER - rootcloud LLC | — | 2.6M | 5 |
| AS51856US | SRSP-4-51856 - Aubrey Rose | — | 16 | 1 |
| AS7405US | GENUITY-XATL - Genuity Inc. | — | — | 0 |
| AS7208US | MEGANET - MegaNet | — | — | 0 |
| AS7197US | SMS - Siemens Medical Services | — | — | 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5872US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5754US | PIXINET1 - Pacific Information Exchange, Inc. | — | — | 0 |
| AS401519US | SUNOAKI-NET-CCH - Sunoaki Network LLC | — | 2 | 2 |
| AS6096US | SYSNET-1 - Sysnet Corp | — | — | 0 |
| AS5634US | MILESTONE - Milestone Research and Development Labs Inc. | — | — | 0 |