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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 |
| 10.8K |
| 65.8K |
| 8 |
| AS399725US | BUZZ-BROADBAND - Buzz BroadBand | 10.8K | — | 7 |
| AS396141US | BARC-CONNECTS - BARC Connects | 10.5K | 65.5K | 5 |
| AS53949US | BCT-AS1 - Benton Cooperative Telephone Company | 10.5K | — | 5 |
| AS22200US | BLOOMINGDALE-COMMUNICATIONS - Bloomingdale Communications Inc. | 10.5K | — | 8 |
| AS29914US | MIDATL-3 - Economic Computer Systems Inc. dba Mid Atlantic Broadband | 10.5K | — | 21 |
| AS62509US | WISD-AS - Waxahachie Independent School District | 10.5K | — | 19 |
| AS26034US | ASN-DELTA-OUT - Delta Technology | 10.5K | — | 36 |
| AS31919US | BRMEMC - Blue Ridge Mountain Electric Membership Corporation - BRM EMC | 10.5K | 32.8K | 6 |
| AS19112US | NEW-LISBON-BROADBAND-AND-COMMUNICATIONS - New Lisbon Telephone Co., INC | 10.5K | — | 13 |
| AS22787US | ARRIS - CommScope Technologies LLC. | 10.5K | 7 | 27 |
| AS396305US | CLARKSVILLECONNECTED - Clarksville Connected Utilities | 10.5K | — | 5 |
| AS7725US | COMCAST-7725 - Comcast Cable Communications, LLC | 10.5K | 112 | 144 |
| AS21788US | HIPOINT-US - HIPOINT TECHNOLOGY SERVICES, INC. | 10.5K | 2 | 24 |
| AS40459US | SADDL-COMM - Saddleback Communications | 10.5K | — | 27 |
| AS22775US | MOORECAP - Moore Capital Management | 10.5K | — | 10 |
| AS54579US | CVALLEY - Chariton Valley Telephone Corporation | 10.5K | 65.5K | 6 |
| AS7345US | LUCENTTECH - Nokia of America Corporation | 10.5K | 1 | 36 |
| AS16746US | RELIANTENERGY - CenterPoint Energy, Inc. | 10.5K | — | 24 |
| AS19739US | COUNTY-SANBERNARDINO - County of San Bernardino | 10.5K | — | 27 |
| AS395555US | ELEVATE - ELEVATE | 10.5K | 65.5K | 11 |
| AS8068US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 10.5K | 31 | 72 |
| AS25923US | LEXISNEXIS-RISK-ASSETS - ChoicePoint, Inc. | 10.5K | 6 | 5 |
| AS11096US | FLORIDANET - FloridaNet | 10.3K | 65.5K | 44 |
| AS53256US | MULBERRY - Mulberry Telecommunications | 10.2K | — | 5 |
| AS19631US | TRAVELPORT - Travelport Operations, Inc. | 10.2K | — | 7 |
| AS10958US | ROYELLCOMMUNICATIONSINC - Royell Communications, Inc. | 10.2K | 1M | 11 |
| AS397451US | ZEROBOUNCE - ZeroBounce | 10.2K | 1 | 8 |
| AS23369US | SCOE - Sonoma County Office of Education | 10.2K | — | 6 |
| AS14640US | QWIRELESSBB - Q-Wireless, LLC | 10.2K | — | 3 |
| AS393640US | ONLINE-TECH-LLC-IN1 - Otava, LLC | 10.2K | — | 6 |
| AS399091US | INTERDATALINK-INC - Inter Data Link Inc | 10.2K | 65.5K | 13 |
| AS1088US | FASTBRIDGE-FIBER-RDNG-PA-01 - FastBridge Fiber | 10.2K | 65.5K | 9 |
| AS30220US | SWWC-SERVICE-COOPERATIVE - SWWC Service Cooperatives | 10.2K | — | 9 |
| AS22598US | ALENCO - ALENCO COMMUNICATIONS, INC | 10.2K | — | 40 |
| AS6528US | SOUTH-TELEP - SOUTH ARKANSAS TELEPHONE COMPANY | 10.2K | 32.8K | 43 |
| AS53818US | MDUPRO - MDU Pro LLC | 10.2K | — | 3 |
| AS10249US | REDZONE - RedZone Wireless, LLC | 10.2K | — | 3 |
| AS9193US | ConXionEU NAVISITE OPCO LLC | 10.2K | — | 19 |
| AS23117US | ICOE-NETWORK - Imperial County Office of Education | 10.2K | — | 12 |
| AS62955US | EBAYMTBB - eBay, Inc | 10.2K | 1 | 5 |
| AS398242US | PCEPA - Prentiss County Electric Power Association | 10.2K | — | 3 |
| AS394727US | NODISTO - Nodisto IT, LLC | 10.2K | 2 | 42 |
| AS14634US | SPINNNET - SpinnNet | 10.2K | — | 10 |
| AS20058US | CCTC-LINK1 - Totelcom Communications, LLC | 10.2K | — | 25 |
| AS46516US | GLOBEIX - HostRoyale LLC | 10.2K | 524.3K | 10 |
| AS8134US | UP-NET - Baraga Telephone Company | 10.2K | 65.5K | 4 |