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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| AS-OCF-01 - ORANGE COUNTY FIBER LLC |
| — |
| — |
| 0 |
| AS397912US | SYNGENTA-01 - Syngenta Crop Protection, LLC | — | — | 0 |
| AS398083US | YALE-AS - Yale University | — | — | 0 |
| AS398102US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398128US | SDN-01 - SDN Premium Networks LLC | — | — | 0 |
| AS398175US | LARKSUITE - LARK ENTERPRISE APPLICATIONS INC. | — | — | 0 |
| AS398431US | ATLANTICMETRO-EZE - Atlantic Metro Communications II, Inc. | — | — | 0 |
| AS398520US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398523US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398569US | JECEMC - JEFFERSON ENERGY COOPERATIVE, AN ELECTRIC MEMBERSHIP CORPORATION | — | — | 0 |
| AS398599US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398614US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398621US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398634US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398716US | ONTRAPORT-IPS-5 - ONTRAPORT, INC. | — | — | 0 |
| AS398768US | TRUMID-PUBLIC-ASNS - Trumid Financial LLC | — | — | 0 |
| AS398799US | ZH-ASN-01 - ZebraHost, LLC | — | — | 0 |
| AS398857US | NUAGE-ASN-01 - Nuage Logic, Inc. | — | — | 0 |
| AS398896US | PRIVACY-01 - Magnusson Institute | — | — | 0 |
| AS398904US | SHIVE-HATTERY - Shive-Hattery, Inc. | — | — | 0 |
| AS398912US | OMEGA-1-COMMUNICATIONS-OKC - Chisholm Broadband LLC | — | — | 0 |
| AS398939US | SEMBRACARE-01 - SembraCare, Inc | — | — | 0 |
| AS398968US | GROUP-IID-01 - INTERCONTINENTAL INTERNET DATA CORP | — | — | 0 |
| AS399023US | CAEC - CENTRAL ALABAMA ELECTRIC COOPERATIVE | — | — | 0 |
| AS399040US | CTIT-ASN-01 - CTITINC | — | — | 0 |
| AS399113US | GM7-TYLER-07 - Group M7, Inc. | — | — | 0 |
| AS399302US | GREENFROG-NETWORKS - GREENFROG NETWORKS, LLC | — | — | 0 |
| AS399322US | TRANSRE-064US - TransRe | — | — | 0 |
| AS399343US | ATIGL-399343 - Nextlink Broadband | — | — | 0 |
| AS399391US | SCOA-ASN-01 - St Cloud Orthopedics | — | — | 0 |
| AS399479US | NMGASCO-01 - NEW MEXICO GAS COMPANY, INC. | — | — | 0 |
| AS399543US | BAKER-ROYALOAK - Baker College | — | — | 0 |
| AS399590US | TECHPIPE - TechPipe Consulting, LLC | — | — | 0 |
| AS399735US | LAKELAND-BL-01 - LakeLand Internet LLC | — | — | 0 |
| AS399738US | TNS-TSYS-01 - Transaction Network Services, Inc. | — | — | 0 |
| AS399767US | CSAT - CSAT Solutions | — | — | 0 |
| AS399916US | PACKETSTREAM-NAM - PACKETSTREAM LLC | — | — | 0 |
| AS399958US | ENTRYPOINT-LLC - ENTRYPOINT, LLC | — | — | 0 |
| AS400003US | OXFORD-GLOBAL-RESOURCES - Oxford Global Resources | — | — | 0 |
| AS400076US | SWLSC-INTERNAL - State of Washington Legislative Service Center | — | — | 0 |
| AS400112US | TECH555 - Tech 555 Inc | — | — | 0 |
| AS400184US | ZOOMHASH-NET - Zoomhash | — | — | 0 |
| AS400230US | FHLBCIN - Federal Home Loan Bank of Cincinnati | — | — | 0 |
| AS400237US | NUTLEY - Eisai Inc. | — | — | 0 |
| AS400248US | PACWAVE2 - Cetra Group Inc. | — | — | 0 |
| AS400388US | MIDCO-CORPORATE - Midcontinent Communications | — | — | 0 |
| AS400389US | HOMEMAKERS-HP-764 - Homemakers Plaza, Inc | — | — | 0 |