Waiting List for Unmet Requests
When ARIN receives a justified request for IPv4 address space that cannot be filled by a single block from ARIN's available IPv4 free pool, the requestor will have three options:
- Accept the largest available block in the ARIN IPv4 free pool that is equal to or less than your approved size. ARIN will fill the request per ARIN policy and the requestor will then be ineligible to receive IPv4 addresses from the ARIN IPv4 free pool for the next three months.
- Elect not to accept an available block from the ARIN IPv4 free pool and request to be put on the Waiting List for Unmet Requests. ARIN will ask you to specify the smallest block size you are willing to accept and will place your 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 ARIN's Number Resource Policy Manual (NRPM) Section 4.1.8.
- Elect not to accept an available block from the ARIN IPv4 free pool and close out the request.
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 18.104.22.168, "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 reverification 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 cancelled 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 reverification 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.