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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS396247US | AESHS125 - Adlai E. Stevenson High School | 512 | — | 2 |
| AS399358US | ANTHROPIC - Anthropic, PBC | 512 | 2 | 3 |
| AS46639US | HUGHES-TELEMATICS - Verizon Business | 512 | — | 2 |
| AS399983US | APOG-MILLERSVILLE - Apogee Telecom Inc. | 512 | — | 1 |
| AS32610US | GLOBAL-AS - Global Companies LLC | 512 | — | 2 |
| AS15020US | AS-BANDITO - Bandito Networks, Inc | 512 | 3 | 5 |
| AS22844US | TRADERJOE - TRADER JOE'S COMPANY | 512 | — | 2 |
| AS13472US | MATRIX-CCHN - Matrix Medical Network | 512 | — | 2 |
| AS394889US | RNDC-12-AS - REPUBLIC NATIONAL DISTRIBUTING COMPANY | 512 | — | 2 |
| AS395824US | BEPCOLP - Bepco, L.P. | 512 | — | 2 |
| AS54228US | INVTECHNOLOGIES - Invision Technologies, LLC | 512 | — | 2 |
| AS19656US | LOCAL-SECURE-DATA - Lehigh Secure Data LLC | 512 | 65.5K | 3 |
| AS32744US | MCCC - Montgomery County Community College | 512 | — | 2 |
| AS394612US | UPMC-PINNACLE - UPMC | 512 | — | 2 |
| AS47056US | AS-NFM-01 - Nebraska Furniture Mart, Inc. | 512 | — | 2 |
| AS395955US | INTERLINE-BRANDS-INC - Interline Brands, Inc. | 512 | — | 2 |
| AS35864US | APUS-5 - American Public University System | 512 | — | 2 |
| AS399712US | ENTEFY-ASN - Entefy Inc. | 512 | — | 2 |
| AS19733US | DCU-LCO1 - Digital Federal Credit Union | 512 | — | 2 |
| AS393853US | ICS - Digital Network Access Communications, INC | 512 | — | 1 |
| AS46460US | KARMAK-NET - Karmak, Inc. | 512 | — | 1 |
| AS12096US | AMPNET-ASN - AMP Telephones | 512 | — | 2 |
| AS54883US | CORVA - City of Richmond, Virginia | 512 | — | 2 |
| AS26649US | GDCLSD-AS - General Dynamics Land Systems | 512 | — | 2 |
| AS395633US | WSU-EVT-AS - Washington State University | 512 | — | 2 |
| AS399257US | INCOMM-NET4 - InComm | 512 | — | 2 |
| AS395324US | NETBLK-CBOCS-HO-NET - Cracker Barrel Old Country Store, Inc. | 512 | — | 2 |
| AS395464US | BEREAC - Berea College | 512 | — | 2 |
| AS36638US | JRCH-AS - Jackson Rancheria Band of Miwuk Indians | 512 | — | 2 |
| AS36766US | KETV-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS396077US | UDR-US - UDR | 512 | — | 2 |
| AS54469US | COV-ISP - City of Vacaville | 512 | — | 2 |
| AS394011US | NEORA-ASN-1 - Neora, LLC | 512 | — | 1 |
| AS393418US | LOGIX-HEALTH - LOGIXHEALTH, INC | 512 | — | 2 |
| AS400114US | APOG-RBC - Apogee Telecom Inc. | 512 | — | 2 |
| AS13570US | AS13570 - Angelo, Gordon & Co., L.P. | 512 | — | 2 |
| AS26304US | COBORNS-PUB - Coborn's Inc | 512 | — | 2 |
| AS26006US | EXODO - Exodo LLC | 512 | 272 | 4 |
| AS19364US | SEBAGO-FIBER - Sebago Fiber & Wifi, LLC | 512 | 4.1K | 3 |
| AS54365US | DIGITAL-INNOVATIONS-BY-RYAN - Digital Innovations by Ryan | 512 | 256 | 3 |
| AS23526US | HALFMOONINN-GUEST-INTERNET - Humphreys Half Moon Inn & Suites | 512 | — | 1 |
| AS12168US | DANAONMISSIONBAY-GUEST-INTERNET - The Dana On Mission Bay | 512 | — | 1 |
| AS397476US | BCSUSA-LO-ASN-01 - Biotronik Corporate Services U.S., Inc. | 512 | — | 2 |
| AS395523US | IGSENERGY - IGS Energy | 512 | — | 2 |
| AS394064US | AECI - Associated Electric Cooperative, Inc. | 512 | — | 2 |
| AS18539US | DAYTON-SUPERIOR-MIAMISBURG - DAYTON SUPERIOR CORPORATION | 512 | — | 2 |