Current Fee Schedule FAQ

Changes to the Fee Schedule

What changes took effect on 1 January 2024 when ARIN moved to the new Fee Schedule?

  • Autonomous System Number (ASN) fees are now included in the Registration Services Plan (RSP) Fee Schedule
  • The $550 ASN issuance fee for new ASNs has been removed

Why did the Fee Schedule change in 2024?

In 2022, ARIN transitioned end user customers to the Registration Services Plan (RSP) fee schedule, based on total IPv4 and IPv6 resources held, to ensure costs were distributed in an equitable manner by eliminating the fee differentiation between ISP and end user organizations. Now, ARIN completes that fee harmonization process by transitioning Autonomous System Numbers (ASNs) to the RSP Fee Schedule.

The new Fee Schedule includes the following changes:

  • Transitioning ASNs to the RSP Fee Schedule
  • Eliminating the $550 ASN issuance fee for new ASNs

This change also transitions our ASN-only customers to become ARIN Service Members, making them eligible to become General Members and participate in ARIN governance if they so choose.

The new ARIN Fee Schedule brings all ARIN customers into a unified, equitable fee schedule, and provides equal standing to all ARIN customers with Internet number resources that are held under an ARIN Agreement (RSA/LRSA).

What resources are available if we have additional questions?

Please see the following links for more information. If you have additional questions, please contact or submit via Ask ARIN, while logged into your ARIN Online account.

Consultation on ARIN Fees:

Determining Your Fees

How do I determine my fees if my organization has multiple resources under one Org ID?

ARIN Online features a fee calculator for ARIN resource holders wishing to view an estimate of annual fees.

How are my fees determined?

ARIN determines fees per Org ID. Fees are determined by the service category corresponding to the cumulative size of IPv4 or IPv6 address space or number of ASNs. If an organization holds IPv4 and/or IPv6 resources and ASNs, the fee is based on the larger dollar value.

Invoices now contain a description of the resources that your organization’s fees are based on, using a base count of /24s for IPv4 and /48s for IPv6, as well as the number of ASNs. The table below shows how those equivalents match up with the fee categories as described within the Fee Schedule.

Service Category Fee IPv4 Aggregate Block Size IPv6 Aggregate Block Size Autonomous System Numbers (ASNs)
3X-Small* $250 /24 or smaller /40 or smaller 1-3 ASNs
2X-Small $500 Larger than /24, up to and including /22 Larger than /40, up to and including /36 4-15 ASNs
X-Small $1,000 Larger than /22, up to and including /20 Larger than /36, up to and including /32 16-63 ASNs
Small $2,000 Larger than /20, up to and including /18 Larger than /32, up to and including /28 64-255 ASNs
Medium $4,000 Larger than /18, up to and including /16 Larger than /28, up to and including /24 256+ ASNs
Large $8,000 Larger than /16, up to and including /14 Larger than /24, up to and including /20
X-Large $16,000 Larger than /14, up to and including /12 Larger than /20, up to and including /16
2X-Large $32,000 Larger than /12, up to and including /10 Larger than /16, up to and including /12
3X-Large $64,000 Larger than /10, up to and including /8 Larger than /12, up to and including /8
4X-Large $128,000 Larger than /8, up to and including /6 Larger than /8, up to and including /4
5X-Large $256,000 Larger than /6 Larger than /4

What do you mean by “cumulative total?”

The current fee schedule is based on the service category corresponding to the total amount of ARIN allocated Internet number resources (IPv4, IPv6, and ASNs) to an organization, covered under an ARIN Registration Services Agreement (RSA). For example, if an organization has both a /32 of IPv6 address space (X-small service category) and a /17 of IPv4 address space (medium service category), that organization will be in the medium service category as this is the larger of the two and invoiced accordingly. For another example, if you have a /20 and a /21 issued by ARIN under RSA, and a /18 of legacy address space that is not covered under any agreement, your annual fees are calculated solely on the space under an RSA and falls under the small Service Category of the fee schedule.

Understanding Your Invoice

Resource Holdings Detail

To assist customers with the management of their resources, invoices now contain cumulative totals of held IP resources using the baselines of /24s for IPv4 and /48s for IPv6, as well as total number of Autonomous System Numbers (ASNs).

Customer Resource Detail Example Invoiced

Legacy RSA Changes

Invoices now show what a Legacy Resource holder organization’s fee would be without the Legacy RSA Fee Cap, and then what their annual fee is with the fee cap. Example included below.

LRSA Fee Cap Example Invoice


Where do I find more information on the billing process?

Information about how billing works and the resource revocation, returns, and reinstatement process is available on the ARIN website.

How do I determine the term dates of my annual invoice?

The term of coverage is one year, renewing annually on the last day of each organization’s anniversary month. For example, for an invoice due 30 June 2024, the period of coverage would be 30 June 2024 - 29 June 2025.

Can I pay the renewal fees for multiple years?

No, the annual fee may fluctuate from year to year. Each year, the annual invoice is calculated by the cumulative total of ARIN-issued resources (IPv4, IPv6, ASNs) under contract.

Is each resource held under a single Org ID billed under a separate invoice?

No, ARIN generates a single invoice per Org ID. If an organization holds multiple resources (ASN, IPv4, and/or IPv6), the invoice details the resource type, quantities, and amount for the annual fee.

Managing Your Fees

If I am an ISP, can I return my IPv6 /32 for a /48 to lower my annual fees?

This is not possible under the current policy “Initial Allocation to LIRs,” NRPM, as it states that the smallest block an ISP may be allocated is a /36 or /40. Partial returns of any IPv6 allocation that results in less than a /36 of holding are not permitted (NRPM So the smallest block your organization can reduce to at this time is a /36, which is in the 2X-Small category.

How can I tell if returning IPv6 addresses (or a portion) will reduce my fees?

You will need to look at the Fee Schedule in the Service Category for both IPv4 and IPv6 to determine if returning IPv6 addresses will reduce your fees. Per the current fee schedule, ARIN calculates annual fees based on the larger of your IP address holdings.

For example, if your cumulative (total) IPv4 allocations are greater than a /22 IPv4 allocation (2X-Small) and you have a /32 IPv6 allocation (X-Small), your corresponding Service Category is X-Small, the larger of the two service categories. Returning your /32 for a /36 would reduce your IPv6 Service Category to “2X-Small,” and you will be invoiced according to the fees associated with the 2X-Small Service Category.

How does the IPv6 Fee Waiver work?

The temporary IPv6 Fee Waiver allows organizations that are currently in the 3X-Small category based on their IPv4 allocation to be billed the 3x-Small fee after receiving a /36 (2x-Small) allocation of IPv6. This waiver will expire on 31 December 2026. Beginning in January 2027, all organizations will be billed based on their size category in the RSP Fee table.

  • Current Fee Schedule FAQ

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