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Waiting List for Unmet Requests


When an organization's justified request for IPv4 address space cannot be filled from ARIN's available IPv4 free pool, the organization may choose to join the waiting list for unmet requests or close their ticket. ARIN's free pool depleted on 24 September 2015.

The process begins with the submission of an IPv4 request and, if the request meets justification requirements, ARIN will ask if the organization would like the request to go on the Waiting List for Unmet Requests. Requests on the waiting list can only be filled when ARIN adds IPv4 address space to its available IPv4 inventory.

ARIN will ask the organization to specify the smallest acceptable block size and place the request on the waiting list for a range that includes your approved size through the minimum size you designated. This procedure is in accordance with Section 4.1.8 of the Number Resource Policy Manual (NRPM).

How the Waiting List for Unmet Requests Works

Requests on the waiting list may be filled when IPv4 addresses are returned to ARIN by a registrant, revoked by ARIN (i.e. for non-payment of annual fees), distributed to ARIN by the Internet Assigned Numbers Authority (IANA), or otherwise made available to be re-issued.

When an IPv4 block becomes available, the oldest waiting list request that has specified a minimum acceptable block size equal to or less than the available block will be filled and the request will be removed from the waiting list. ARIN will re-verify the organization's justified need to make sure nothing with regard to the organization's justification for resources has materially changed since the original request was approved.

For example: if the oldest waiting list request has been approved for a /20, the requester has specified the minimum acceptable block size is a /24, and a /20 becomes available; then ARIN will fill that request with a /20, provided the organization still has a justified need for a /20. Upon fulfillment of an organization's waiting list request, that organization will be ineligible to obtain additional IPv4 addresses from the ARIN IPv4 free pool for three (3) months.

Note: Per NRPM, "any requests met through a transfer will be considered fulfilled and removed from the Waiting List."

Fulfillment of Waiting List Requests

ARIN will contact your organization when we have space available that fulfills your request, and you will have thirty (30) days from the offer date to confirm that you will accept the block of IPv4 addresses. ARIN will complete re-verification of your organization's justified need if you accept the offered block of IPv4 addresses.

If your organization owes any applicable fees and/or must execute an updated Registration Services Agreement (RSA), ARIN will send an invoice (if applicable) and other instructions to complete your transaction. All payments due and an executed RSA must be received within sixty (60) days of the date ARIN issues your approval for the block of IPv4 addresses.  If you fail to provide any applicable payment and/or an executed RSA within this time period, your request will be canceled and the available block of IPv4 addresses will be offered to the next qualifying organization on the waiting list.

If there are no applicable fees due and no requirement for an updated RSA, the IPv4 addresses will be issued to your organization upon receipt of written confirmation of acceptance and, if applicable, successful completion of ARIN's re-verification of your organization's justified need.

Note: An organization with outstanding (past due) invoices or an invalid Registration Services Agreement (RSA) is ineligible to receive resources via the Waiting List. Failure to submit timely payment and/or an updated RSA for the resources currently held by your organization will result in the cancellation of your Waiting List for Unmet Needs request. The available block of IPv4 addresses may be offered to the next qualifying organization on the waiting list.

Obtaining IPv4 Addresses via the Transfer Market

Qualified organizations have the option to decline placement on the Waiting List for Unmet Requests in favor of seeking IPv4 addresses via the Transfer market. IPv4 transfers allow organizations with unused IPv4 addresses to release them to another qualifying organization under applicable policy. For more information, see the Transfer Resources page.

Waiting List Status Report

The table below represents the current state of the Waiting List for Unmet Requests. This list is updated every 24 hours, and is provided in chronological order beginning with the oldest waiting list request. The wait listed date column represents the date and time that the request was placed on the waiting list.

Note: This table is not indicative of the order in which requests will be filled. That order depends entirely upon the order, size, and quantity of IPv4 address blocks that ARIN receives and places back into its IPv4 inventory. For some example scenarios, visit the How Waiting List Requests Work page.

Status Report for the IPv4 Waiting List
Request's Position on Waiting List Date and Time Added to Waiting List Maximum Approved Prefix Size Minimum Acceptable Prefix Size
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