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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 |
| — |
| — |
| 0 |
| AS7825US | IMAGINENET-AS1 - imagine.com | — | — | 0 |
| AS7831US | WEBWARP - WebWarp Technologies | — | — | 0 |
| AS7846US | RIGHTLINE - Rightline, Inc. | — | — | 0 |
| AS7857US | EMPIRE2-ASN - Empire Communications, Inc. | — | — | 0 |
| AS7866US | BTI - Business Telecom, Inc. | — | — | 0 |
| AS7880US | NEURAL-AS - Neural Applications | — | — | 0 |
| AS7946US | MET-NET - Metropolitan Government of Nashville and Davidson County Tennessee | — | — | 0 |
| AS7955US | CWL-30-ASN - COMMNET WIRELESS LLC | — | — | 0 |
| AS7983US | WAYNECO - Wayne D. Correia | — | — | 0 |
| AS8146US | GNAC - Global Networking and Computing, Inc. | — | — | 0 |
| AS8156US | INTI - Integrated Network Technologies, Inc. | — | — | 0 |
| AS10246US | AGT - Applied Graphics Technologies | — | — | 0 |
| AS10268US | ASN-USS - USS.NET | — | — | 0 |
| AS10315US | EZNETWORK - ez network systems | — | — | 0 |
| AS10324US | WAZOO-AS - Wazoo's Computers | — | — | 0 |
| AS10344US | GRAMTEL002 - CyrusOne LLC | — | — | 0 |
| AS10422US | NETEXPLORER - Net Explorer, Inc. | — | — | 0 |
| AS10442US | ED-GOV - U.S. Department of Education | — | — | 0 |
| AS10465US | DOCKNET-1 - Aerioconnect | — | — | 0 |
| AS10500US | RISE-IA-4 - JAB Wireless, INC. | — | — | 0 |
| AS10519US | ANS97 - ANS Communications, Inc. | — | — | 0 |
| AS10552US | CATAPULTNET - Catapult Integrated Systems | — | — | 0 |
| AS10579US | HIGHWAY1-AS - Highway 1 | — | — | 0 |
| AS10593US | AOL-DTC2 - Yahoo Holdings Inc. | — | — | 0 |
| AS10607US | ETHERN - Global Communications INTERNETworking Corp. | — | — | 0 |
| AS10682US | VISION21ASN - Vision Twenty-One | — | — | 0 |
| AS10698US | WR-TECH - Wood River Technologies | — | — | 0 |
| AS10711US | RCONNECT - Windstream Communications LLC | — | — | 0 |
| AS10713US | GIGAN-3 - Insync Internet Services, Inc. | — | — | 0 |
| AS10719US | VRIS-10719-10720 - Verizon Business | — | — | 0 |
| AS10760US | THEBEAM - CS Wireless Systems, Inc. | — | — | 0 |
| AS10777US | ZEONET - Buzzeo, Inc | — | — | 0 |
| AS10800US | INTERNETARENA-GW - Internet Arena | — | — | 0 |
| AS10842US | ESCA-AS - Cegelec ESCA Corporation | — | — | 0 |
| AS10848US | NTTDATA - NTT DATA Services, LLC | — | — | 0 |
| AS10893US | NYT-EWR1 - The New York Times Company | — | — | 0 |
| AS10902US | INFILINK-CORPORATION - BISYS Creative Solutions | — | — | 0 |
| AS10931US | W4B - Wire4Biz LLC | — | — | 0 |
| AS10957US | REALMED - REALMED CORPORATION | — | — | 0 |
| AS10977US | JIANYUELAB-AS - JianyueLab | — | — | 0 |
| AS11002US | BAC-MLAMRS - Bank of America, National Association | — | — | 0 |
| AS11060US | TWC-11060-NA - Charter Communications Inc | — | — | 0 |
| AS11151US | NAVE-AS-11151 - Navisite Opco LLC | — | — | 0 |
| AS11156US | SIGMA-CRM - SIGMA CORPORATION | — | — | 0 |
| AS11165US | DPI - Toppan Photomasks, Inc. | — | — | 0 |
| AS11213US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |