New York attorney record · Judicial Dept 3
William Anthony Castelli
University Of Colorado Law School alumna, admitted to the New York bar in 2024. As a recent entrant to the registry, this record's status, address, and admission date come straight from the NY Office of Court Administration.
- 2024
- Admitted
- 2
- Years in bar
- 6165393
- NY reg #
The record in one line
William Anthony Castelli is early in an active New York law career - admitted to the bar in 2024 and on active status for 2 years so far, already ahead of 0% of the state's active bar by tenure.
- 2 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 100%
- by tenure among active NY attorneys
- Law school
- University Of Colorado Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
William Anthony Castelli holds bar number 6165393 with the New York bar authority, a recent active-status addition to the roll. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
No firm or business address is on record yet for this recent admission. Educational background: University of Colorado Law School (84 registered alumni).
State context & due diligence
As a recent addition to the register, William Anthony Castelli counts toward the New York bar's active cohort; the breakdown below shows how that group stacks up against the rest of the register.
Experience vs. the active New York bar
William Anthony Castelli is a recent addition to the active New York bar, admitted in 2024. The histogram below shows where 2 years of tenure falls among every currently-active attorney in the state.
2 years on the New York bar
Years since admission, all currently-active NY attorneys
2 Top 100% higher than 0% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How William compares to fellow University Of Colorado Law School alumni
Among the 84 University Of Colorado Law School graduates in the New York register, William Anthony Castelli is longer-tenured than 0% - a school-cohort view of experience, alongside the statewide one above.
2 years vs. University Of Colorado Law School alumni
Years since admission - 84 NY-registered alumni of this school
2 Top 100% higher than 0% of 84 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
University Of Colorado Law School's active-bar rate
Of University Of Colorado Law School's 84 alumni in the New York register, 78.8% currently hold "Currently registered" status, above the statewide average.
University Of Colorado Law School alumni, active-bar rate
The 2024 admission class today
Of the 8,938 attorneys admitted to the New York bar in 2024, 76.6% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 6165393
- Year Admitted
- 2024 (2 yrs · early career)
- Judicial Department
- 3
- Next Registration
- Jan 2028
Location & Contact
- Phone
- (610) 724-9626
Education
Status Distribution Across the New York Bar
William Anthony Castelli's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
William Anthony Castelli's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is William Castelli licensed?
William Castelli is licensed to practice law in New York.
When was William Anthony Castelli admitted to the bar?
William Anthony Castelli was admitted to the New York bar in 2024, 2 years ago.
Where did William Anthony Castelli go to law school?
William Anthony Castelli attended University of Colorado Law School.
Is William Anthony Castelli in good standing?
Yes, William Anthony Castelli holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.