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

N1ZSW

Cancelled

PFEIFFER, RONALD A

Location: WORCESTER, MA
Class: General
Granted: 2003-06-17
Expires: 2013-08-03
Previous call: WB0AFR
FRN: 0007328511

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Vanity availability

Available

Available now

N1ZSW cleared its 2-year hold on 2009-02-26. Eligible for vanity application.

Last held by PFEIFFER, RONALD A (MA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Previously held by current licensee

WB0AFRcancelled· G
PFEIFFER, RONALD Acancelled 1997-10-06

Prior holders later became

W2CTXactive· G
PFEIFFER, RONALD AMAgranted 2016-12-06

License history

0 events

No recorded events.

More vanity slots coming available

From Massachusetts

All →

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

Starting with N1

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N1NMG MA · 2026-09-14

Full history → Vanity availability → Callsign genealogy →