Specified Transfer Listing Service (STLS) Report

ARIN provides a STLS report to STLS participants. This report is in Microsoft Excel format and includes a list of:

  • Organizations with unused IPv4 address space unsure of the organization to whom they wish to transfer it (sources)
  • Organizations in need of IPv4 address space but unsure of where to get it (recipients)
  • Parties looking to facilitate a transfer between two organizations (facilitators)

Downloading the STLS Report Using ARIN Online

To download the report:

  1. Log in to ARIN Online.
  2. Choose Downloads & Services from the navigation menu. In the Specified Transfer Listing Service (STLS) section, the file is provided, along with a timestamp that shows the date and time that the file was last updated.

Downloading the STLS Report Using a RESTful HTTP Request

The STLS Report can be downloaded directly without logging into ARIN Online using a RESTful HTTP request containing your API key. (You can manage your API keys on the Settings page when logged into your ARIN Online account.)

Example of the RESTful command:


There are a variety of ways to automate the retrieval of this document. For example, on a Linux system, where your API key is API-1111-2222-3333-4444, you can use the following ‘curl’ command to download the report file:

curl https://accountws.arin.net/public/secure/downloads/stls?apikey=API-1111-2222-3333-4444 > stls.xls

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