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Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KC1YOA

Cancelled

Potter, William S

Location: SOMERVILLE, MA
Class: Technician
Granted: 2025-11-26
Expires: 2035-11-26
FRN: 0037596798

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Vanity availability

511d

Available on 2028-02-03

KC1YOA cancelled on 2026-02-03. Hold ends in 511 days.

Last held by Potter, William S (MA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Prior holders later became

W1LLPactive· T
Potter, William SMAgranted 2026-02-03

License history

0 events

No recorded events.

More vanity slots coming available

From Massachusetts

K1AFR 2026-09-10
KC1SDV 2026-09-10
W1RLJ 2026-09-10
KB1ITH 2026-09-12
KB1YQO 2026-09-13

Starting with KC1

KC1SDV MA · 2026-09-10
KC1VGT CT · 2026-09-10
KC1UNR NH · 2026-09-13
KC1VEC ME · 2026-09-17
KC1VEL CT · 2026-09-17

Full history → Vanity availability → Callsign genealogy →