ARIN policies regulate the transfer of IP addresses and Autonomous System Numbers (ASNs) issued by ARIN or its predecessors.
In order to buy or sell ARIN IP addresses, certain requirements must be met, including having an account, obtaining pre-approval from ARIN, and understanding the IPv4 transfer process within the ARIN region. Transfers of IP addresses and ASNs are allowed under specific circumstances, such as when an organization acquires assets or a network through a merger, acquisition, reorganization, or similar transaction.
Additionally, organizations can release unused IPv4 address space or ASNs to qualified recipients within or outside the ARIN region, depending on the recipient’s regional Internet registry’s policy. It’s important to note that ARIN facilitates the transfer of addresses but only accepts purchases for ARIN IP addresses, while other regional Internet registries have their own policies for transfers.
I need IPv4 address space and I’m looking for a source
Submit a Recipient request at Interlir.com
I need IPv4 address space and I already have a Source confirmed
Obtain IPv4 pre-approval
Find an IPv4 Source
Submit a recipient request at Interlir.com
I have IPv4 address space that I want to transfer and I’m looking for a Recipient
Verify that your registration information is accurate. Find an IPv4 recipient at Interlir.com
I have IPv4 address space that I want to transfer and I already have a Recipient confirmed
Verify your registration information is accurate. Submit a source request at Interlir.com
I need additional IPv4 addresses and haven’t yet fulfilled my 24-month pre-approval?
Go to: Find an IPv4 Source at Interlir.com
Buy IPv4from 38 europer IP | Sell IPv4from 38 europer IP | |
Background check |  | |
Inter-RIR transfer | | |
Escrow | | |
Consulting | | |
Detailed Blacklist Reporting | | |
Submitting a Transfer Request
1.Log in to ARIN Online.
2. Go to the Transfer Resources section in the navigation menu.
3. Follow the provided instructions for the transfer process.
4. Pay the required non-refundable processing fee, if applicable.
5. After approval, pay any additional fees that may be applicable.
6. Within 90 days, submit a signed Registration Services Agreement (RSA).
7. Once ARIN receives the signed RSA and all fees, the transfer of resources will be completed within two business days.
8. For status updates or any inquiries regarding the transfer request, contact ARIN Registration Services. For questions related to fees or the RSA, contact ARIN Financial Services.
Transfers due to Mergers, Acquisitions, and Reorganizations
If your organization has acquired assets from another organization through a merger, acquisition, or reorganization, and those assets utilize IP addresses and/or ASNs directly registered through ARIN, you can request a transfer of those resources. ARIN will process transfer requests even if the combined number of resources exceeds what can be justified under current ARIN policy. In such cases, ARIN will collaborate with the resource holder(s) to transfer the excess resources to other organizations or accept a voluntary return of the excess resources to ARIN.
Transfers to Specific Recipients within the ARIN Region
If your organization requires unused ARIN-issued IPv4 address space or an Autonomous System Number (ASN), or if your organization already holds such resources, you can request a Specified Recipient Transfer. Both the recipient and source organizations must submit separate transfer requests, which will be reviewed by ARIN staff and linked together.
Requirements for the Source Organization (Current Registrant)
The source organization must be the current registered holder of the resources. If the current registrant no longer exists, an Mergers, Acquisitions, and Reorganizations transfer may be required before the transfer. The source organization must not be involved in any dispute as to the status of the resources. The source organization must provide a signed and notarized Officer Acknowledgement Letter . The minimum transfer size is a /24. The source organization must not have received a transfer, allocation, or assignment of IPv4 number resources from ARIN within 12 months prior to the approval of the transfer. Address resources from a reserved pool are not eligible for transfer. The source entity will not be allowed to apply for IPv4 address space under ARIN Waitlist for a period of 36 months following the transfer of IPv4 address resources to another party.
Requirements for the Recipient Organization
The recipients must meet the transfer requirements as defined in NRPM Section 8.5. The resources transferred will be subject to current ARIN policies. If applicable the recipient will be removed from the ARIN Waitlist and will not be allowed to reapply ARIN Waitlist for a period of 90 days.
What should I do next?
Once both the source and recipient (if known) involved in the transfer meet the transfer requirements, the following steps will occur: The Admin or Tech POCs of both the source and the recipient organizations must submit a transfer request via ARIN Online. Both organizations are issued their own ticket number for their request. An ARIN Customer Service Resource Analyst links the two tickets after the source and recipient organizations are identified and confirmed. ARIN invoices the appropriate organization for the non-refundable processing fee. Upon receipt of the non-refundable transfer processing fee, an ARIN Customer Service Resource Analyst begins processing each request independently. ARIN respects the privacy and confidentiality of each organization and therefore, organizations should coordinate directly with each other to monitor progress on their respective requests. Upon approval of both transfer requests, an invoice for any other fees will be sent to the appropriate organization along with a Registration Services Agreement (RSA), if applicable. Upon receipt of all fees and a signed RSA, if applicable, ARIN will complete the transfer.
How should I do InterRiR transfers?
Inter-RIR Transfers (8.4 transfers) allow organizations within the ARIN region who hold unused IPv4 address space or Autonomous System Numbers (ASNs) to request transfers to a specific qualified recipient in another Regional Internet Registry (RIR) region. 8.4 transfers also allow organizations within another RIR’s region to transfer IPv4 addresses or ASNs to an organization within the ARIN region. In both cases, an 8.4 transfer can only be conducted between RIRs that share reciprocal, compatible, needs-based policy.
Requirements for Transfers from ARIN to Another RIR
The source organization must be the current registered holder of the IPv4 resources. If the current registrant no longer exists, an 8.2 Mergers, Acquisitions, and Reorganizations Transfer may be required before the 8.4 transfer. The source organization must not be involved in any dispute as to the status of the resources. The source organization must provide a signed and notarized Officer Acknowledgement Letter . The minimum transfer size is a /24. Source entities 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, unless either the source or recipient entity owns or controls the other, or both are under common ownership or control. Number resources received as the result of an 8.2 transfer are out of scope for the purposes of this restriction. Address resources from a reserved pool (including those designated in NRPM Section 4.4 and 4.10) are not eligible for transfer. The source entity will not be allowed to apply for IPv4 address space under Section 4.1.8. ARIN Waitlist for a period of 36 months following the transfer of IPv4 address resources to another party.
Recipient Requirements: The conditions on a recipient outside of the ARIN region will be defined by the policies of the receiving RIR. Upon completion, the network record will move to the other RIR and be removed from ARIN’s Whois service and a placeholder record pointing to the new RIR will be added.
What are requirements for Transfers from Another RIR to ARIN?
Source Requirement: Source organizations outside of the ARIN region must meet any requirements defined by the RIR where the source organization holds the registration.
Recipient Requirements: Recipients within the ARIN region will be subject to current ARIN policies. Specified recipients within the ARIN region must meet the transfer requirements as defined in NRPM 8.5. Recipients within the ARIN region must demonstrate the need for up to a 24-month supply of IPv4 addresses. The minimum transfer size is a /24. Recipients are required to have an updated and signed RSA and pay for any other applicable fees to complete the transfer. If applicable the recipient will be removed from the ARIN Waitlist and will not be allowed to reapply under section 4.1.8. ARIN Waitlist for a period of 90 days.
What are Transfer Requirements for Specified and Inter-RIR Transfer Recipients?
Minimum IPv4 transfer size is a /24. Recipient organizations without direct assignments/allocations qualify for an initial /24. Recipient organizations may qualify for a larger initial IPv4 address block by providing documentation which: Details 50 percent of the requested IPv4 addresses will be used within 24 months Demonstrates 50 percent of the sum of all previous IPv4 assignments and allocations is efficiently used Alternatively, recipient organizations with direct assignments/allocations who demonstrate 80 percent efficient utilization of the sum of all precious assignments/allocations may qualify for a transfer equal to the total size of their current IPv4 holdings (up to a /16). Organizations may only qualify under this policy once every six months.
Who may submit a transfer request?
An Admin or Tech Point of Contact (POC) for the appropriate organization will need to submit the transfer request. Mergers, Acquisitions, and Reorganizations transfer request must be submitted by the recipient organization. Both the recipient and source organizations must submit 8.3 Specified Recipient transfer requests separately. transfer requests must be submitted by a POC of the organization in the ARIN region, whether they are source or recipient.
What kind of documentation will you be asking for?
Not all transfers require the same documentation, but some examples include bills of sale, finalized and filed merger or amalgamation agreement certificates of merger or amalgamation, other finalized contracts, certified deeds, or finalized court orders. ARIN will work with you to determine the appropriate documentation based on your request details.
Do I have to send my entire Asset Purchase Agreement?
No, we will only ask you for five key items: the page(s) that list the parties involved the page(s) that list any excluded parties the page(s) that list the physical assets that were acquired the page(s) that list any excluded assets and the signature page(s)
Can I redact any monetary listings in my merger or acquisition contracts?
Yes, ARIN is not concerned with the associated costs of the merger or acquisition.
Our contracts are confidential and we do not feel comfortable sharing the sensitive data. Is there any other way to complete the transfer?
ARIN is willing to enter into a standard non-disclosure agreement (NDA) with you prior to your organization’s submission of sensitive or confidential data.
I need to transfer resources, but the merger/acquisition took place many years ago and I no longer have the legal documentation outlining the transaction. Is there anything that can be done?
Submit your request as normal and we will work with you to obtain as much relevant information, documentation, and evidence as possible. Often, older documents are available on the Secretary of State/State Corporation Commission sites of various states, the U.S. Securities and Exchange Commission site and other local, state, and federal government sites.
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 organization name. ARIN will need to confirm and vet the organization in order to effectuate such an update.
How does the transfer of direct allocations affect membership status?
A General membership reliant on a single direct allocation of IP address space from ARIN is terminated when the address space is transferred to another entity. On the day the transfer process is complete, membership and the accompanying voting rights are terminated for the source organization. The recipient organization, depending on several factors, may gain the ability to apply for General membership or will simply maintain an existing membership. If a Member organization transfers a direct allocation while retaining another direct allocation, the organization will maintain its Member eligibility.
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.
Does ARIN recommend any particular brokerage services such as those on the Registered Transfer Facilitator list?
ARIN does not make any recommendations for any brokerage services, STLS or otherwise. Parties to a transfer have the option of using the STLS to facilitate a Specified Recipient 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.
How does ARIN handle bankruptcy-related transfers?
Please see this article for a legal perspective on transfers within the ARIN region related to bankruptcy court proceedings.
I want to transfer Internet number resources to another party which are currently covered under an ARIN RPKI certificate. What do I need to do to prepare for this?
Upon completion of a transfer, any Internet number resources being transferred to another organization will be removed from the current ARIN RPKI certificate along with any ROAs associated with those resources. Any remaining Internet number resources will be automatically rerolled and their associated ROAs retained. However, if you are the Recipient of a transfer of Internet number resources, and you have an ARIN RPKI certificate issued by ARIN, you will need to submit an Ask ARIN ticket and let us know you’d like the newly transferred Internet number resources to be certified.
Alexei Krylov Nikiforov
Sales manager
Having a clear understanding of the different types and purposes of IP addresses
the rights to manage blocks of IP addresses are constantly faced with a dilemma.
In 2011, RIPE announced the depletion of IPv4 addresses. IPv4 addresses continue
addresses are trite. The allocation from the Primary IPv4 Registry, begun by John
unique identifier that points to each device on the internet and allows them to communicate
One of the possible ways to support the development of the IT sector is the effective
Even if you don’t plan to sell your IPv4 network, there are still ways to make
InterLIR GmbH is a marketplace solution that aims to solve network availability problems
l IPv4, where is possible only 4,3 billion combination of the numbers.
The increasing demand for IP blocks has driven up prices and transformed overused