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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 | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,235 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 | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| — |
| — |
| 0 |
| AS393218US | ORACLE-OC39 - Oracle Corporation | — | — | 0 |
| AS393229US | OPORTUN - Oportun,Inc. | — | — | 0 |
| AS393234US | PROLEXIC-MGMT - Akamai Technologies, Inc. | — | — | 0 |
| AS393271US | LIVINGSTONHAVEN - Livingston and Haven, LLC | — | — | 0 |
| AS393335US | SAP-DC-CO2 - SAP America Inc. | — | — | 0 |
| AS393358US | BOSTON-ENV - ENV | — | — | 0 |
| AS393491US | AS-393491 - 617A Corporation | — | — | 0 |
| AS393545US | FCH - 1st Class Hosting, LLC | — | — | 0 |
| AS393921US | VASCOR-LIMITED - VASCOR Limited | — | — | 0 |
| AS394045US | TRACELINK - Tracelink | — | — | 0 |
| AS394047US | ARCOS-COL-ASN - Arcos LLC | — | — | 0 |
| AS394059US | DCNET - DC NET LLC | — | — | 0 |
| AS394091US | DHS54-ASN - Diversified Health Services, Inc. | — | — | 0 |
| AS394120US | TSDS-LOCATION3 - CenturyLink Communications, LLC | — | — | 0 |
| AS394141US | ROCKET-FIBER - Rocket Fiber | — | — | 0 |
| AS394148US | ATMEL-COM - ATMEL Corporation | — | — | 0 |
| AS394215US | ZENORADIO - ZenoRadio | — | — | 0 |
| AS394231US | AS-RTSD - Radnor Township School District | — | — | 0 |
| AS394346US | KPS-HORIZON-NET-1 - KNIGHT POINT SYSTEMS, LLC | — | — | 0 |
| AS394349US | VINYLINTERACTIVE - Vinyl Interactive, LLC | — | — | 0 |
| AS394383US | GMAC - Graduate Management Admission Council | — | — | 0 |
| AS394409US | POWERENG - Power Engineers, Inc. | — | — | 0 |
| AS394440US | COMCASTROUTE - Lebanon Valley College | — | — | 0 |
| AS394454US | WB-AS-US - Withers Bergman LLP | — | — | 0 |
| AS394458US | DATAMINR-1 - Dataminr | — | — | 0 |
| AS394641US | 724IT-BGP-COLO - AMA NETWORKS | — | — | 0 |
| AS394680US | ESSEXTEL - EssexTel, Inc. | — | — | 0 |
| AS394717US | SGO-BROADBAND - S-Go Video and Internet | — | — | 0 |
| AS394758US | PFE-HSP - Pfizer Inc. | — | — | 0 |
| AS394789US | WNMIAS - Western National Mutual Insurance Company | — | — | 0 |
| AS394822US | WGH-ASN-1 - Wabash General Hospital District | — | — | 0 |
| AS394842US | AFS-5 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS394931US | ROSWELL - PRIMERICA LIFE INSURANCE COMPANY | — | — | 0 |
| AS395012US | AURORA - Aurora Operations, Inc. | — | — | 0 |
| AS395077US | ORION-STELLAR - Stellar Technologies, LLC | — | — | 0 |
| AS395108US | FORWARDCORP-ASN - Forward Corporation | — | — | 0 |
| AS395121US | ATT-ESIN - AT&T Services, Inc. | — | — | 0 |
| AS395621US | CONAIR-EW - Conair Corporation | — | — | 0 |
| AS395632US | VMW-ATLANTA - Avago Technologies U.S. Inc. | — | — | 0 |
| AS395749US | KELSER-CORP - Kelser Corporation | — | — | 0 |
| AS395796US | PEAK-INTERNET-BACKUP - Peak Internet | — | — | 0 |
| AS396030US | G2WS - G2 Web Services LLC | — | — | 0 |
| AS396124US | ETHERIC-SOCAL - Etheric Networks, Inc. | — | — | 0 |
| AS396166US | WKBL-1 - World Knowledge Bank LLC | — | — | 0 |
| AS396201US | CCCAS1 - Contra Costa County | — | — | 0 |
| AS396551US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |