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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 | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,214 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 11K |
| 16.4K |
| 56 |
| AS21527US | DAYSTARR-NET - Daystarr Communications | 11K | 73.7K | 25 |
| AS40156US | THEOPT-HOU - The Optimal Link Corporation | 11K | 65.5K | 13 |
| AS30167US | XCNETWORKS-30167 - XC Networks, Ltd. | 11K | — | 12 |
| AS393524US | MISSOURICOM - New Florence Telephone Company | 11K | 3.1K | 10 |
| AS3931US | LOGICAL - Logical Net Corporation | 11K | — | 5 |
| AS14821US | VLAN24-INC - Vlan24 | 11K | 3 | 36 |
| AS22110US | LIGTEL-COMMUNICATIONS - Ligtel Communications, Inc. | 11K | 65.5K | 9 |
| AS10680US | IU-RESEARCH - Indiana University | 11K | 2 | 6 |
| AS18882US | FLEXTR-AS - Flextronics International USA, Inc. | 11K | — | 12 |
| AS40193US | AS-TRIT - Trit Networks, LLC | 11K | 65.6K | 11 |
| AS16491US | VIASAT - ViaSat, Inc. | 11.3K | 1 | 34 |
| AS393924US | RIGNET-ISP - RigNet Inc | 11.3K | 65.5K | 10 |
| AS393436US | SLVREC - San Luis Valley Rural Electric Cooperative, Inc. | 11.3K | — | 30 |
| AS393278US | FRANKLIN-KY-FIBERNET - Electric Plant Board of the city of Franklin Kentucky | 11.3K | 65.5K | 22 |
| AS16875US | AS16875 - AON Corporation | 11.3K | — | 29 |
| AS12189US | AS12189 - PhoenixNAP LLC | 11.3K | 4.9K | 32 |
| AS11971US | PFIZERNET-GROTON - Pfizer Inc. | 11.3K | — | 6 |
| AS125US | HI-NET-AS - Honeywell International, Inc. | 11.3K | — | 31 |
| AS54502US | DATA-STREAM - Data Stream | 11.3K | 65.5K | 5 |
| AS11357US | INFO-IQTINC - InfoQuest Technologies, Inc. | 11.3K | — | 5 |
| AS33234US | SJOBERGS-INC - Sjobergs Inc | 11.3K | 65.5K | 13 |
| AS399646US | DARTNODE - Snaju Development | 11.3K | 90.1K | 38 |
| AS399244US | BLOOM-HOST - AME Hosting LLC | 11.3K | 24 | 26 |
| AS395597US | APOG-ATLANTA - Apogee Telecom Inc. | 11.3K | — | 40 |
| AS63457US | EMPIRE-CONNECT - Liberty Connect | 11.3K | — | 22 |
| AS400404US | SCREMC - STEUBEN COUNTY RURAL ELECTRIC MEMBERSHIP CORPORATION | 11.3K | — | 18 |
| AS33635US | ARISTATA - Visionary Communications LLC | 11.3K | — | 19 |
| AS10668US | LEE-ASN - Lee Enterprises, Incorporated | 11.3K | — | 6 |
| AS394065US | ESSENSYSINC - essensys Inc. | 11.3K | — | 26 |
| AS40923US | FID-SYS-RTP - FMR LLC | 11.3K | — | 44 |
| AS53830US | VPDC-1 - Otava, LLC | 11.3K | — | 18 |
| AS396206US | FRANCISCANALLIANCE - Franciscan Alliance Inc | 11.3K | — | 18 |
| AS18552US | SPI-BGP-BDR - Sony Pictures Imageworks, Inc. | 11.3K | — | 5 |
| AS36067US | DCX-BGN-TI - DaimlerChrysler Corporation | 11.3K | — | 10 |
| AS18749US | PREMINC-INTER - Premier, Inc. | 11.3K | — | 11 |
| AS30530US | FMTCAS - Farmers Mutual Telephone Company | 11.3K | 65.5K | 20 |
| AS398779US | ACEHOST - Ace Host, LLC | 11.3K | 4.1K | 39 |
| AS46783US | EL-US - EASY LINK LLC | 11.3K | — | 35 |
| AS14140US | AUBURN-ESSENTIAL-SERVICES - Auburn Essential Services | 11.3K | 65.5K | 20 |
| AS13322US | FMR-AS3 - FMR LLC | 11.3K | — | 44 |
| AS212336US | BYTEVIRTLLC ByteVirt LLC | 11.3K | 18 | 53 |
| AS394195US | CLEARNETWORX - Clearnetworx | 11.5K | 65.5K | 40 |
| AS14978US | CSSBB - Consolidated Smart Systems LLC | 11.5K | 4.1K | 49 |
| AS21595US | BAXTER - Baxter Healthcare | 11.5K | — | 41 |
| AS11525US | HRTC - Hancock Rural Telephone Corp. | 11.5K | 1M | 8 |
| AS30175US | EPICOR - EPICOR | 11.5K | — | 32 |