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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. | 218M | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 2.8K |
| 65.5K |
| 6 |
| AS56443US | IWL-44-56443 - IP WAY LLC | 2.8K | — | 11 |
| AS15205US | NCPDAS - Nassau County Police Department | 2.8K | — | 4 |
| AS17089US | CINCCHILDRENS - Cincinnati Children's Hospital Medical Center | 2.8K | — | 7 |
| AS393460US | CNSP-ASN - NMSURF | 2.8K | — | 5 |
| AS26989US | HR-WORLD-HEADQUARTERS - H&R Block | 2.8K | — | 8 |
| AS63407US | TERRA-MULTI-HOMED - Terracon Consultants, Inc. | 2.8K | — | 10 |
| AS35995US | TWITTER - Twitter Inc. | 2.8K | — | 6 |
| AS393347US | IFNCO - TollFreeForwarding.com | 2.8K | — | 11 |
| AS149513US | VCL-147-149513 - Vertex Connectivity LLC | 2.8K | 1.3K | 18 |
| AS25905US | FIRESERVE - FireServe, LLC | 2.8K | 65.8K | 6 |
| AS19477US | FLYINGJ - F J Management Inc. | 2.8K | — | 11 |
| AS6553US | HTCNET-ORG - HTCNET.ORG | 2.8K | — | 6 |
| AS20034US | FIRST-NATIONAL-TECHNOLOGY-SOLUTONS - First National Technology Solutions, Inc. | 2.8K | — | 5 |
| AS400513US | IPIPE-INC - IPIPE International, Corp. | 2.8K | 256 | 9 |
| AS22317US | F5-NETWORKS - F5, Inc. | 2.8K | 13 | 24 |
| AS63252US | HCDL-PHOENIX-DATA-CENTER - H5 Data Centers | 2.8K | 8.2K | 6 |
| AS394749US | EQUINIX-SOLUTION-VALIDATION-CENTER - Equinix, Inc. | 2.8K | 5 | 16 |
| AS399111US | CAMELLIA-FIBER - CAMELLIA FIBER | 2.8K | 65.5K | 6 |
| AS10340US | TELE-TECH - TELE-TECH CO. INC. | 2.8K | — | 5 |
| AS1086US | GET-REAL-CABLE-ASN - Get LLC | 2.8K | — | 8 |
| AS15071US | BAX-BGP - BAX GLOBAL | 2.8K | — | 5 |
| AS395535US | WEISS-INTERNET - Weiss Internet | 2.8K | — | 11 |
| AS54523US | WSTC - WSTC | 2.8K | — | 5 |
| AS36373US | COMMUNITY-HEALTH-NETWORK - Community Hospitals, Indianapolis | 2.8K | — | 11 |
| AS18715US | NYPA - New York Power Authority | 2.8K | — | 11 |
| AS397780US | ALMA-COMMUNICATIONS - Alma Telephone Company | 2.8K | — | 4 |
| AS25673US | RMSSLB - Cellnet Innovations, Inc. | 2.8K | — | 6 |
| AS54201US | WEWORK-MANAGEMENT-LLC - We Link Networks LLC | 2.6K | 30 | 41 |
| AS63104US | MOHAWK-NETWORKS - Mohawk Networks LLC | 2.6K | — | 3 |
| AS40828US | THE-RMR-GROUP - The RMR Group LLC | 2.6K | — | 3 |
| AS397370US | ACADIANA-WIRELESS - ACADIANA WIRELESS LLC | 2.6K | — | 6 |
| AS36201US | B2X-ONLINE-WISP-ASN - B2X Online Inc | 2.6K | — | 10 |
| AS393258US | SAFETYNET1 - Safety NetAccess, Inc. | 2.6K | — | 2 |
| AS3061US | PDNPVD-1 - ProvDotNet LLC | 2.6K | — | 3 |
| AS20231US | TWC-20231-NE-KS-C3 - Charter Communications Inc | 2.6K | 288 | 4 |
| AS29967US | ARAMARK-NS - Aramark Services, Inc. | 2.6K | — | 10 |
| AS393526US | NTS-BORGER-01 - Vexus Fiber | 2.6K | — | 6 |
| AS11990US | UNLIMITEDNET - Unlimited Net, LLC | 2.6K | 4.2K | 5 |
| AS397790US | IMU - Indianola Municipal Utilities | 2.6K | 65.5K | 5 |
| AS6312US | TRIOTELASN - TrioTel Communications, Inc. | 2.6K | — | 10 |
| AS20279US | ESC-REGION12 - Education Service Center Region 12 | 2.6K | — | 3 |
| AS393240US | BTWI-WIRELESS-INTERNET - BTWI Wireless Internet LLC | 2.6K | — | 3 |
| AS22181US | IVNET - IV NET, LLP | 2.6K | — | 4 |
| AS22687US | L3NET - L3 NETWORKS INC | 2.6K | — | 10 |
| AS46851US | TURNITIN - Turnitin LLC | 2.6K | — | 3 |
| AS19606US | NLSNMEDIA - THE NIELSEN COMPANY (US), LLC | 2.6K | — | 9 |