American Registry for Internet Numbers Ltd logo

American Registry for Internet Numbers Ltd

501(c)(6) organization Centreville, VA EIN: 54-1860956 Website

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

Who American Registry for Internet Numbers Ltd funds

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

20C LLC: $20K20C LLC$20KUniversity Corporation for Advanced Internet Development: $16KUniversity Corporation forAdvanced Internet Development$16KNetwork Time Foundation Inc: $14KNetwork Time Foundation Inc$14K

The largest 2025 recipient was 20C LLC ($20K). Together the top 3 received $50K.

Grant Size Distribution

11 grants across all recorded years

11<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 11 grants of 11 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

8states

Share of 2025 grant dollars across all 3 itemized grants.

Cities

TalentAnn ArborWashingtonIndianapolisMadisonRestonSilver SpringsVirginia BeachWilmington

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

$0$20K$40K$60K2 grants2020 1 grant2021 3 grants2022 3 grants2023 1 grant2024 3 grants2025

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

RecipientPurposeAmount
20C LLC Wilmington, DEOperational Support$20,000
University Corporation for Advanced Internet Development Ann Arbor, MIOperational Support$16,000
Network Time Foundation Inc Talent, OROperational Support$14,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsNet Investment Income
2025$54,229,033$31,661,623$31,941,906$50,0003$1,617,392
2024$45,236,043$29,435,380$29,950,624$20,0001$962,170
2023$45,084,818$28,777,990$29,946,085$47,0003$831,793
2022$42,788,821$25,380,037$26,066,640$33,5003$903,009
2021$43,598,573$28,772,051$22,683,580$15,0001$7,671,712
2020$40,659,396$23,576,858$21,276,175$22,5002$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

John Curran — President and CEO: $608KJohn CurranPresident and CEO$608KRichard Jimmerson — Chief Operating Officer: $449KRichard JimmersonChief Operating Officer$449KBrian Kirk — Chief Financial Officer: $414KBrian KirkChief Financial Officer$414KMichael Abejuela — General Counsel: $391KMichael AbejuelaGeneral Counsel$391KJohn Sweeting — Chief Experience Officer: $385KJohn SweetingChief Experience Officer$385KErin Alligood — Chief Human Resources Officer: $358KErin AlligoodChief Human Resources Officer$358KMark Kosters — Chief Technology Officer: $353KMark KostersChief Technology Officer$353KLeslie Daniello Nobile — Sr Director: $324KLeslie Daniello NobileSr Director$324KEinar Bohlin — VP, Govt Affairs: $308KEinar BohlinVP, Govt Affairs$308KRobert Johnson — Chief Information Security Officer: $298KRobert JohnsonChief Information Security…$298KReginald Forster — Director, Operations: $279KReginald ForsterDirector, Operations$279KPeter Toscano — Director, ISS: $272KPeter ToscanoDirector, ISS$272KDebra Martin — Director, Eng Program Mgmt: $271KDebra MartinDirector, Eng Program Mgmt$271K

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

  1. Updated Form 990 for fiscal year 2020 (received by the IRS June 30, 2021)
  2. Updated Form 990 for fiscal year 2021 (received by the IRS July 22, 2022)
  3. Updated Form 990 for fiscal year 2022 (received by the IRS August 25, 2023)
  4. Updated Form 990 for fiscal year 2023 (received by the IRS August 29, 2024)
  5. Updated Form 990 for fiscal year 2024 (received by the IRS August 25, 2025)
  6. Added Form 990 for fiscal year 2025 (received by the IRS August 31, 2026)
  7. IRS filings on file for fiscal years 2020–2024

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Figures come from American Registry for Internet Numbers Ltd's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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