American Registry for Internet Numbers Ltd
Arin, a nonprofit member-based organization, supports the operation of the internet through the management of internet number resources throughout its service region; coordinates the development of policies by the community for the management of internet protocol number resources; and advances the internet through informational outreach.
American Registry for Internet Numbers Ltd at a glance
In short: American Registry for Internet Numbers Ltd gave $50K across 3 grants in 2025 (avg $17K), top state Delaware. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $50,000
- +150.0% vs 2024
- Grants made (2025)
- 3
- +200.0% vs 2024
- Average grant
- $16,667
- -16.7% vs 2024
- Median grant
- $16,000
- Total assets
- $54,229,033
- +19.9% vs 2024
- Primary geography
- Delaware (40% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated November 2026.
How to apply to American Registry for Internet Numbers Ltd
Open Grants
2 open opportunities from American Registry for Internet Numbers Ltd
Who American Registry for Internet Numbers Ltd funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2025
The largest 2025 recipient was 20C LLC ($20K). Together the top 3 received $50K.
Grant Size Distribution
11 grants across all recorded years
The most common grant size was under $50K: 11 grants of 11 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 3 itemized grants.
Cities
How American Registry for Internet Numbers Ltd gives
- Giving grew 49% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $15K (2021) to $50K (2025). In 2025 it made 3 grants totaling $50K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| 20C LLC Wilmington, DE | Operational Support | $20,000 |
| University Corporation for Advanced Internet Development Ann Arbor, MI | Operational Support | $16,000 |
| Network Time Foundation Inc Talent, OR | Operational Support | $14,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $54,229,033 | $31,661,623 | $31,941,906 | $50,000 | 3 | $1,617,392 |
| 2024 | $45,236,043 | $29,435,380 | $29,950,624 | $20,000 | 1 | $962,170 |
| 2023 | $45,084,818 | $28,777,990 | $29,946,085 | $47,000 | 3 | $831,793 |
| 2022 | $42,788,821 | $25,380,037 | $26,066,640 | $33,500 | 3 | $903,009 |
| 2021 | $43,598,573 | $28,772,051 | $22,683,580 | $15,000 | 1 | $7,671,712 |
| 2020 | $40,659,396 | $23,576,858 | $21,276,175 | $22,500 | 2 | $2,927,055 |
About American Registry for Internet Numbers Ltd
Based on IRS filings
American Registry for Internet Numbers Ltd is a public charity, based in Centreville, VA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $54.2M in total assets. In 2025, it awarded 3 grants totaling $50K. Net investment income was $1.6M.
Leadership & Key People
Officers and directors from IRS filings
American Registry for Internet Numbers Ltd is led by John Curran, President & CEO on every filing since 2020; 13 of 22 officers listed in 2025 are compensated.
Officers on the 2025 filing
John Curran
President & CEO
On filings since 2020
40 hrs/week
$549K (2020) → $608K (2025)
Bill Sandiford
Chair & Board Trustee
Chairman → Chair, 2024
Chair → Chair & Board Trustee, 2025
On filings since 2020
15 hrs/week
No compensation reported
Nancy Carter
Treasurer & Chair
Teasurer → Treasurer, 2024
Treasurer → Treasurer & Chair, 2025
On filings since 2020
12 hrs/week
No compensation reported
Debra Martin
Director & Eng Program Management
Senior Program Manager → Senior Program Mngr, 2021
Senior Program Mngr → Director & Eng Program Management, 2024
On filings since 2020
40 hrs/week
$186K (2020) → $271K (2025)
Leslie Daniello Nobile
Senior Director
Senior Director & Public Trustee → Senior Director, Trustee & Pubic Safety, 2023
Senior Director, Trustee & Pubic Safety → Senior Director, 2025
On filings since 2020
40 hrs/week
$240K (2020) → $324K (2025)
Peter Toscano
Director & Iss
Info Sys & Security Mngr → Information Systems & Security, 2022
Information Systems & Security → Director & Iss, 2023
On filings since 2020
40 hrs/week
$209K (2020) → $272K (2025)
Reginald Forster
Director & Operations
Senior Operations Manager → Director of Oper., 2023
Director of Oper. → Director & Operations, 2024
On filings since 2021
40 hrs/week
$207K (2021) → $279K (2025)
Dan Alexander
Board Trustee
Trustee → Board Trustee, 2024
On filings since 2020
6 hrs/week
No compensation reported
Peter Harrison
Board Trustee
Trustee → Board Trustee, 2024
On filings since 2020
10 hrs/week
No compensation reported
Hank Kilmer
Board Trustee
Trustee → Board Trustee, 2024
On filings since 2023
8 hrs/week
No compensation reported
Robert Seastrom
Board Trustee
Trustee → Board Trustee, 2024
On filings since 2023
10 hrs/week
No compensation reported
Ron Da Silva
Board Trustee
New on the 2025 filing
6 hrs/week
No compensation reported
Brian Kirk
Chief Financial Officer
Chief Financial Officer → CFO, 2024
CFO → Chief Financial Officer, 2025
On filings since 2020
40 hrs/week
$267K (2020) → $414K (2025)
Erin Alligood
Chief Human Resources Officer
Chief Hr Officer → Chro, 2024
Chro → Chief Human Resources Officer, 2025
On filings since 2020
40 hrs/week
$224K (2020) → $358K (2025)
John Sweeting
Chief Experience Officer
Chief Customer Officer → Cxo, 2024
Cxo → Chief Experience Officer, 2025
On filings since 2020
40 hrs/week
$315K (2020) → $385K (2025)
Mark Kosters
Chief Technology Officer
Chief Technology Officer → CTO, 2024
CTO → Chief Technology Officer, 2025
On filings since 2020
40 hrs/week
$300K (2020) → $353K (2025)
Michael Abejuela
General Counsel
General Counsel & Deputy General Counsel → General Counsel, 2021
On filings since 2020
40 hrs/week
$261K (2020) → $391K (2025)
Richard Jimmerson
Chief Operating Officer
Chief Operating Officer → COO, 2024
COO → Chief Operating Officer, 2025
On filings since 2020
40 hrs/week
$395K (2020) → $449K (2025)
Einar Bohlin
Vice President & Govt Affairs
Vice President & Govt Affairs Dept → Vice President & Government Affairs Dept, 2022
Vice President & Government Affairs Dept → Vice President & Govt Affairs, 2024
On filings since 2021
40 hrs/week
$202K (2021) → $308K (2025)
Robert Christian Johnson
Chief Information Security Officer
Chief It Officer → Ciso, 2024
Ciso → Chief Information Security Officer, 2025
On filings since 2022
40 hrs/week
$249K (2022) → $298K (2025)
Tina Morris
Vice Chair
On filings since 2021
10 hrs/week
No compensation reported
Chris Tacit
Secretary
Board Trustee → Secretary, 2025
On filings since 2024
9 hrs/week
No compensation reported
Former officers (10)
- Former: Garth Dubin (2020–2024) — Director & Software Engineering
- Former: Maureen Seiler (2020–2023) — Director & Software Integration · Filing note: As of 8/2023
- Former: Bram Abramson (2022–2023) — Trustee
- Former: Catherine Middleton (2020–2022) — Trustee
- Former: Lisa Liedel (2020–2022) — Director of Registration Srvcs
- Former: Anne-Rachel InnE (2020–2021) — Vice President & Govt Affairs Dept.
- Former: Hollis Kara (2020–2021) — Director of Communications
- Former: Paul Anderson (2020–2021) — Trustee
- Former: Steve Ryan (2020) — Secretary
- Former: Valorie Winkelman (2020) — Director of Financial Services
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $608K, to John Curran (President and CEO). 13 officers or directors reported compensation on that filing.
Frequently asked questions about American Registry for Internet Numbers Ltd
How much does American Registry for Internet Numbers Ltd give each year?
American Registry for Internet Numbers Ltd gave $50K across 3 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $20K across 1 grant.
What is American Registry for Internet Numbers Ltd's typical grant size?
American Registry for Internet Numbers Ltd's median grant in 2025 was $16,000, and its average grant was $16,667, across 3 grants on its 2025 IRS Form 990.
Where does American Registry for Internet Numbers Ltd give grants?
American Registry for Internet Numbers Ltd's top state is Delaware, with 40% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were Michigan (32%) and Oregon (28%).
Does American Registry for Internet Numbers Ltd give general operating support?
Yes: 100% of American Registry for Internet Numbers Ltd's 2025 grants with a stated purpose (3 of 3) were for general or operating support, per its 2025 IRS Form 990.
How large is American Registry for Internet Numbers Ltd?
American Registry for Internet Numbers Ltd reported $54.2M in total assets on its 2025 IRS Form 990. Its revenue that year was $31.7M.
What is American Registry for Internet Numbers Ltd's EIN?
American Registry for Internet Numbers Ltd's EIN (Employer Identification Number) is 54-1860956. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated November 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS June 30, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS July 22, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS August 25, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS August 29, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS August 25, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS August 31, 2026)
- IRS filings on file for fiscal years 2020–2024
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