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Transfers to Specified Recipients

In order for a specified transfer of IPv4 address space or an ASN to be processed by ARIN, both the receiving and transferring entities will be subject to vetting by ARIN's Registration Services Department. ARIN will require adequate documentation to ensure right to transfer by the transferring entity, including but not limited to an officer attestation in the absence of a current Registration Services Agreement (RSA) or Legacy Registration Services Agreement (LRSA). Entities will receive a transfer under an ARIN registration services agreement. In accordance with Section 2.2 of the Number Resource Policy Manual (NRPM), ARIN issues Internet number resources for use within its region.

Note: Additional information is provided below in the Frequently Asked Questions section.

Provider-assigned addresses are not transferable through ARIN.

Step 1: Requirements

Registrations of Internet number resources (IP address blocks and Autonomous System Numbers) issued by ARIN or its predecessors are not transferable or assignable to any other organization, unless ARIN has provided written approval. ARIN is responsible for making prudent decisions on whether to approve the transfer of all or part of an existing IP address space delegation. If a transfer request involves an organization's network that is located outside ARIN's geographic region, the requester must first contact the Regional Internet Registry (RIR) that has responsibility for the appropriate region to receive approval for the transfer.

Review ARIN's transfer policies to determine whether your organization meets the requirements to request the transfer of Internet number resources to another organization. The action of requesting a transfer of resources from ARIN indicates you have read and agree to abide by these policies.

To receive a transfer of number resources, the recipient organization must establish Point of Contact (POC)handles and an Organization Identifier (Org ID) with ARIN.

Step 2: Submit Request

The Admin or Tech Point of Contact from the current registrant should complete and submit the Transfer Request form. ARIN will then contact the current registrant's corporate officer, as listed on the transfer request form, to verify the request is authorized.

You will need to include an API key to authorize processing. To create an API key, log in to your ARIN Online account and click on the WEB ACCOUNT link in the left navigation bar. In the API Key Management section, click Create API Key. Your API key will be issued automatically.

On the request form, you must justify your organization's transfer request by meeting and documenting the following requirements.

Specified Transfer Request Requirements
Type of Resource Transfer Request Criteria for ARIN to Consider Transfer
Transfers of Released Number Resources to Specified Recipients
  • The authorized registrant of the ARIN resources must complete the Specified Transfers Request form and submit it to ARIN.  ARIN will issue a ticket number via email to confirm receipt.
  • In the event that the current registrant of the resources no longer exists, ARIN will require that requesting organization to complete a Merger and Acquisition Transfer (NRPM 8.2) before proceeding with the 8.3 request.  This is done in accordance with policy and provides a clear audit trail showing the chain of registration
  • ARIN will verify the submitter is the authorized registrant of the resources and has not received any IPv4 resources from ARIN either directly or via transfer within the past 12 months.
  • The recipient organization may receive blocks of IPv4 addresses or ASNs under an 8.3 transfer as long as they can demonstrate the need for the resource under a current ARIN policy (ISP initial/additional, end-user, multi-homed ISP/end-user, etc).
  • The recipient organization may be required to provide detailed utilization information to verify that they qualify for the number resource under an existing ARIN policy.
  • In the event that the current registrant of the resources no longer exists, ARIN will require the requesting organization to complete a Merger and Acquisition Transfer (NRPM 8.2) before proceeding with the 8.3 request. This is done in accordance with policy and provides a clear audit trail showing the chain of registration.
  • The source entity must not have received a transfer, allocation, or assignment of IPv4 number resources from ARIN for the 12 months prior to the approval of a transfer request. This restriction does not include M&A transfers.
  • The source entity will be ineligible to receive any further IPv4 address allocations or assignments from ARIN for a period of 12 months after a transfer approval, or until the exhaustion of ARIN's IPv4 space, whichever occurs first.

Step 3: Verification

We will verify receipt of your request upon successful submission.  We will issue you a ticket number via email.

Step 4: Review Process

We will respond to requests within two (2) business days. We may request additional information. For each question and response cycle, we will respond within two (2) days. If you do not reply within ninety (90) days, the ticket will be closed. A request for additional information does not imply a request denial.

For questions about pending requests, email or call ARIN's Registration Services Help Desk at +1.703.227.0660. When you call, have your ticket number and any requested documentation available, and have access to the ARIN website. For further follow-up, supply the name of the ARIN Resource Analyst who assisted you on your prior call. Click here for additional guidance on calling the Help Desk.

Step 5: Officer Attestation

Prior to approval, ARIN will send an email with all data received on the request to an officer of the company receiving the resources for certification. The officer must reply and verify that the data submitted is accurate.

If you have any questions regarding officer attestation, contact for further explanation.

Step 6: Request Approval

ARIN notifies the submitter of request approval, via email. The approval is good for ninety (90) days. If your organization does not follow up on the approval within that time, you will need to resubmit your  request.

If a request is rejected and you feel proper justifications were met, contact ARIN at for further explanation.

Approval is contingent on receipt and review of all requested documentation and that organizations involved have no outstanding invoices, payable to ARIN, ninety (90) days beyond the invoice due date. You must also agree to the same conditions the original organization agreed to when the resources were issued or that are currently in effect.

Step 7: Fees & Registration Services Agreement

Please review the ARIN Fee Schedule to learn more about how fees are determined.

Upon approval and within one business day, you will receive a detailed message that will include: how to update or designate the Billing POC, an invoice, ARIN W-9, and instructions to download the Registration Services Agreement (RSA).  

There are two ways to submit online payments to ARIN:

  • Log into ARIN Online and select BILLING INFO from the left-hand side,
  • Or click here.
    • You will need to provide the appropriate Org ID, Invoice number, and the exact amount due on the invoice.

For payments by check, send to:

American Registry for Internet Numbers
P.O. Box 79010
Baltimore, Maryland 21279-0010

For payment by wire transfer:

  • Email a request to, include the invoice number, the organization name, and Org ID.

Payment information is not accepted by phone. We do not accept purchase orders as the equivalent of payment. The approval request can be dependent on the billing status of the Org ID in question. Outstanding fees due to ARIN must be paid before additional resources are issued or transferred.

Submission of Signed Registration Services Agreement (RSA)

All applicants requesting resources from ARIN are required to sign the Registration Services Agreement (RSA). The RSA must be signed and returned in its entirety for validation before ARIN issues or transfers resources. The language of the agreement cannot be altered or modified. The entire document is required with information to be inserted on page 1 and completing page 9, all applicable fields. The Billing Contact is optional if duplicate of Authorized Officer. *Please ensure the contract is signed by an Authorized Officer of the Company.

Need Help with the ARIN Agreement: 703-227-9886, reply to your ARIN Online ticket, or Ask ARIN.

Remit the completed ARIN agreement by one of the following methods:

  • Reply to your ARIN Online ticket, attaching the signed RSA,as a PDF
  • Fax:  703-227-0671
  • Post:
    • ARIN
      Attention: Financial Services Department
      3635 Concorde Parkway, Suite 200
      Chantilly, VA 20151

ARIN will counter-sign and return a copy for your records after the payment has been confirmed.

Step 8: Transfer Completion

ARIN completes the transfer of resources within two (2) business days of ARIN's receipt of all applicable fees and a signed RSA. ARIN membership, associated with the Org ID holding an allocation of IP address space, is terminated when the address space is transferred to another entity or returned to ARIN. On the day the transfer process is complete, membership and the accompanying voting rights are transferred to the entity acquiring the address space.

Managing Transferred Resources

Responsibility to Maintain Records

The receipt of transferred resources by an organization is accompanied by the responsibility to properly maintain its records with ARIN. This includes the Org ID and POC information mentioned above, and includes any responsibilities relevant to the transferred resources in question. For example, organizations that have received the transfer of a direct allocation of IP address space from ARIN must follow all requirements for reassigning that space, reporting reassignment information, maintaining IN-ADDRs, and any other requirements listed in ARIN's policies, resource instructions, or the Registration Services Agreement.

Annual Renewal and Maintenance Fees

Maintenance Fees

ARIN assesses a single consolidated annual maintenance fee to each Org ID for certain resources registered with it. This single fee covers all ASNs, end-user assignments, and transfers registered with ARIN per Org ID. This fee is due on the anniversary date of the organization's first resource registration associated with their Org ID.

ISPs that are current ARIN subscription holders will not be charged the annual maintenance fee.

Annual Renewal for Transferred Allocations

ISPs receiving transferred IP address allocations will be charged an annual subscription renewal fee. ISPs currently paying a subscription renewal fee based on prior IP address allocations from ARIN will continue to be invoiced on the same anniversary date and may be assessed a larger fee based on the number of addresses transferred. ISPs not currently paying a subscription renewal fee will be assessed an annual subscription fee. When an existing subscription account is transferred in full, the ISPs anniversary date will be based on the previous registrant's anniversary date. The organization's size classification will be based on the previous registrant's size classification (in the event an existing subscription account is transferred in full) or on the number of IP addresses transferred.

An organization may submit payment by credit card using ARIN's ISP Anniversary Payment Form and entering its invoice number, organization name, name of its Billing Point of Contact, and the total size of its allocations from ARIN.

Additional information about ARIN's fees is available on the Fee Schedule.

Frequently Asked Questions

How do I begin the process of transferring Internet number resources to a specified recipient?

In order to begin the process, you must first submit a transfer request to ARIN which is more specifically outlined in the content above.

Please be advised that all transfers of Internet number resources must be in compliance with ARIN’s community developed policies as found in the ARIN Number Resource Policy Manual (“NRPM”).

How long can I expect it to take for a transfer to be processed by ARIN?

There is no way to predict how long it will take to process a Transfer request. Transfers are complex and require ARIN to collect and vet a great deal of information before we can even begin the process of executing a Registration Services Agreement. While ARIN processes these requests as quickly as possible, transfers do have a longer processing time than other requests, simply due to the level of efforts required for both the transferring organizations and ARIN.

Does the transfer request have to be submitted by the current point of contact (POC) on record with ARIN?

When a transfer is due to a merger, acquisition or reorganization (otherwise known as a NRPM 8.2 transfer), the transfer request may be submitted by either the current POC or another party. While the current POC is preferable, ARIN will review and evaluate such a transfer request regardless of whether the current POC or another party submits the request.   Please be aware that before the transfer is effectuated, ARIN must receive acknowledgement from the current POC if the current registrant remains a viable entity. 

For transfers under ARIN’s “Transfers to Specified Recipients” policy, the transfer must be submitted by the current POC on record. A different set of policies, reviews and acceptance is in place for such transfers. 

NOTE: An ARIN Online account and an API Key are needed to submit a Transfer Request form.

The organization name listed on the records was never our legal name. What kind of documentation will ARIN need so we can update the records?

ARIN needs to see documentation showing the original registration was in error. For example, if the organization name was listed as a fictitious name or doing business as (D/B/A) name instead of the legal name, ARIN may ask you to provide a copy of the official business name document which was filed with a local or state government that shows the D/B/A name has always been registered to the actual legal entity name.  ARIN will need to confirm and vet the organization in order to effectuate such an update.

How is legacy space treated in an 8.3 transfer?

ARIN does not differentiate between ARIN-issued and legacy address space when processing a transfer. All of the IP address space that ARIN administers, including legacy space, is subject to ARIN policy.

Are there any constraints when transferring address blocks using a third-party brokerage service outside of ARIN?

The negotiations and terms of a transfer of an address block between two parties is a matter for resolution between those parties. The details of such an arrangement and/or the financial terms may be negotiated between the parties directly or through a third party facilitator. However, all transfers must be made in accordance with current ARIN policies as defined in the NRPM, and only transfer requests in compliance with ARIN policy may be processed. We recommend that parties contemplating a transfer work with ARIN early on in the process to ensure that such a transfer request would be valid under ARIN policy.

We know that ARIN has a Specified Transfer Listing Service (STLS) on the website. Is the STLS  "active"? Have there been any transactions to date via the STLS?

Yes, ARIN’s STLS is active and several parties have registered for the program. ARIN cannot comment on the details of any particular transactions; however, the program is in its early stages and we will likely release statistics regarding STLS to the public periodically as they become available. You can see the sizes of the blocks listed on the Public STLS Summary Report page.

Does ARIN recommend using the STLS instead of other brokerage services that are not affiliated with ARIN? If so, why? Does ARIN have any legal rights to enforce that?

ARIN does not make any recommendations or have a preference for any brokerage services, STLS or otherwise. Parties to a transfer have the option of using the STLS to facilitate a NRPM section 8.3 transfer; but they are not required to do so. ARIN provides the STLS for the benefit of the Internet community in response to the demand for transfer services.  Parties are free to use the STLS to facilitate their transfers, or they may choose to work outside of STLS and make a transfer request independent of STLS.  ARIN's transfer policies apply whether a company uses the STLS or not, and in either case, the transfer request must meet with ARIN policy to be processed.