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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 |
| 1.8K |
| — |
| 7 |
| AS14137US | AICW - America Internet & Communications | 1.8K | — | 6 |
| AS22334US | FERGUSON - Ferguson Enterprises, LLC | 1.8K | — | 6 |
| AS40090US | RGC-WIRELESS - RGC Wireless | 1.8K | 65.5K | 5 |
| AS36062US | DOUBLE-VERIFY - DoubleVerify, Inc. | 1.8K | — | 6 |
| AS151980US | EAAPPL-AS-AP - Electronic Arts Inc. | 1.8K | — | 5 |
| AS14521US | PACIFIC-LIFE - Pacific Life Insurance Company | 1.8K | — | 7 |
| AS27401US | KLD-MN-US - KLDiscovery Ontrack, LLC | 1.8K | — | 7 |
| AS46191US | 5LINX-ASN - Globalinx | 1.8K | — | 5 |
| AS32647US | CRUCIALWEBHOST - Crucial Web Hosting, Ltd. | 1.8K | — | 5 |
| AS55236US | CBC - CBC | 1.8K | — | 4 |
| AS46155US | DEERFIELD-ACADEMY - Deerfield Academy | 1.8K | — | 7 |
| AS40799US | LOOMIS - Loomis Armored US, LLC | 1.8K | — | 6 |
| AS53985US | DODGE-AND-COX-FUNDS - DODGE & COX | 1.8K | — | 7 |
| AS13950US | DLS-INTERNET-SERVICES - DLS Internet Services, Inc | 1.8K | — | 7 |
| AS397847US | FLEX-SPF - Flextronics International USA, Inc. | 1.8K | — | 4 |
| AS395176US | ENCORE-TECHNOLOGIES - Encore Technologies | 1.8K | 768 | 10 |
| AS36464US | RABO-NA-BGP01 - Rabo Support Services, Inc. | 1.8K | — | 5 |
| AS27529US | AS27529 - General Dynamics Information Technology, Inc. | 1.8K | — | 7 |
| AS46935US | CITYWISPER-NOC - Citywisper LLC | 1.8K | — | 3 |
| AS399726US | XTREAM-INTERNET-01 - XtreamInternet | 1.8K | 65.5K | 5 |
| AS14590US | DESERTSCHOOLS-ASN-1 - Desert Schools Federal Credit Union | 1.8K | — | 7 |
| AS15209US | COMMVAULT - CommVault Systems | 1.8K | — | 4 |
| AS6286US | HEALTHWAYS - American Healthways Services, Inc. | 1.8K | — | 7 |
| AS39986US | GEORGE-FOX-UNIVERSITY - George Fox University | 1.8K | — | 7 |
| AS399449US | KYNDRYL-POP-ASN - Kyndryl | 1.8K | — | 7 |
| AS30283US | MOFO - Morrison & Foerster | 1.8K | — | 7 |
| AS11446US | LAKELAND-AS - Lakeland Community College | 1.8K | — | 4 |
| AS32927US | CLECO-CORP - Cleco Corporation | 1.8K | — | 7 |
| AS16641US | 16641 - ACBB-BITS, LLC | 1.8K | — | 7 |
| AS7334US | WALLSTREET - Markit On Demand, Inc. | 1.8K | — | 7 |
| AS62813US | AJ-MADISON - Star Creations Inc. | 1.8K | — | 5 |
| AS32552US | CLB-ASN - Helmsco, Inc. | 1.8K | — | 3 |
| AS397743US | PAYG - PAYG, LLC | 1.8K | — | 7 |
| AS400339US | TRINITY-CYBER-01 - Trinity Cyber | 1.8K | 82 | 14 |
| AS14414US | CROSSBRDG-ASN01 - Telit IoT Platforms, LLC | 1.8K | — | 7 |
| AS40126US | AS-MOLSONCOORS - Molson Coors Beverage Company | 1.8K | — | 4 |
| AS394855US | STRATUS-VIDEO - Stratus Video, LLC | 1.8K | 2 | 7 |
| AS18666US | NOKIA-ASN - Nokia of America Corporation | 1.8K | 8.3K | 8 |
| AS26478US | NOVARTIS-PHARMA - Novartis Pharmaceuticals | 1.8K | — | 6 |
| AS22474US | SAINT-LUKES-HEALTH-SYSTEM-AS - Saint Luke's Health System | 1.8K | — | 4 |
| AS55096US | CANYON - CANYON PARTNERS LLC | 1.8K | — | 7 |
| AS19142US | AAFES-NETBLK-ASN - Army & Air Force Exchange Service | 1.8K | — | 7 |
| AS22024US | SPLUNK-WEST - Splunk, Inc. | 1.8K | 1 | 8 |
| AS13378US | QINGYE-CLOUD - Qingye Cloud | 1.8K | 1 | 7 |
| AS30051US | SCCGOV - Santa Clara County | 1.8K | — | 6 |
| AS205157US | CIDNOC Daniel Cid | 1.8K | 5 | 12 |