Your First IPv6 Request

Are you ready to deploy IPv6, but you’re not sure where to begin? Whether you are an end user or an Internet Service Provider (ISP), ARIN can help you determine how much IPv6 address space is appropriate for your organization and tell you how to request space.

I already have IPv4 from ARIN (or its predecessor). I need IPv6!

If you have an IPv4 allocation or assignment from ARIN, obtaining IPv6 couldn’t be easier.

  1. Log in to ARIN Online.
  2. Select IP Addresses from the navigation menu.
  3. Select Request.
  4. The subsequent windows guide you through your request.

ARIN will follow up with you within two business days to process your request.

If you obtained IPv4 from ARIN (or its predecessor) but do not have an ARIN Online account, you must first create one and link it to a Point of Contact record (POC) and an Organization Identifier (Org ID) using these instructions.

I do NOT have IPv4 from ARIN (or its predecessor) and I need IPv6 for:

  • My organization (I am an end user): If your organization operates networks, but does not provide Internet access to customers, you are an end user. End users that are not ISPs but do provide Internet connectivity to users (for example, universities) may apply either as end users or as ISPs. Visit Requesting Space as an End User.
  • My organization and its customers (I am an ISP): You are an ISP if your organization provides traditional Internet access (cable, fiber, wireless, etc.) or is a hosting provider that operates services which provide Internet access (colocation, dedicated servers, virtual private servers, etc.). Visit Requesting Space as an ISP.

Requesting Space as an End User

Follow these steps:

Step 1: Verify You Qualify

If you meet any of the criteria below, you qualify to receive IPv6 address space:

  • Have an IPv4 assignment from ARIN or one of its predecessors
  • Intend to immediately be IPv6 multi-homed
  • Have 13 end sites (offices, data centers, etc.) within one year
  • Use 2,000 IPv6 addresses within one year
  • Use 200 /64 subnets within one year

Step 2: Determine Your Block Size

IPv6 block size is based on the number of end sites in your network, not on the number of IP addresses you anticipate using. End sites are physical locations such as offices and data centers.

Each end site will generally be assigned one /48 subnet. You can determine the block size you qualify for based on the total number of end sites in your network (refer to the following table). This should include all existing end sites as well as any new end sites that will be deployed within one year.

Number of End Sites Block Size
1 site /48
2-12 sites /44
13-192 sites /40
193-3,072 sites /36
3,073+ sites /32

Step 3: Submit Your Request

Submit your request through your ARIN Online account.

Requesting Space as an ISP

Follow these steps:

Step 1: Verify You Qualify

If you meet any of the criteria below, you qualify to receive IPv6 address space:

  • Qualify for an IPv4 ISP allocation under current policy
  • Intend to immediately be IPv6 multi-homed, or
  • Provide a reasonable technical justification, including a plan showing projected assignments for one, two, and five year periods, with a minimum of 50 assignments within five years

Step 2: Determine Your Block Size

IPv6 block size is based on the number and size of subnets to be assigned to customers, not on the number of IP addresses required by customers. ISPs will typically assign one subnet (/48 or smaller) to each customer. The default /32 minimum allocation is sufficient for many ISPs since it contains 65,536 /48 subnets to assign to customers. ISPs may also opt to request a smaller /36 allocation.

Qualification for blocks larger than /32 is based on:

  • the subnet size to be assigned to customers (typically /48)
  • the number of serving sites (customer aggregation sites such as data centers or regional hubs) in the ISP’s network
  • the number of customers served by the largest serving site in the ISP’s network

If you are applying for a block larger than /32, make sure to inform us of the block size to be assigned, number of serving sites, and number of customers served by the largest serving site so we can determine the appropriate block size to meet your needs.

Step 3: Submit Your Request

Submit your request through your ARIN Online account.

Submitting Your Request

If you meet the requirements for requesting space, follow these steps to request your first allocation or assignment:

  1. Create an ARIN Online account and link it to a Point of Contact record (POC) and an Organization Identifier (Org ID) using these instructions.
  2. Select IP Addresses from the navigation menu.
  3. Select Request.
  4. The subsequent windows guide you through your request.

ARIN will follow up with you within two business days to process your request.

View full requirement/request details for IPv6 assignments and allocations.

  • Your First IPv6 Request

Registration Services Help Desk
7:00 AM to 7:00 PM ET
Phone: +1.703.227.0660
Fax: +1.703.997.8844

Tips for Calling the Help Desk