Confidence: Medium · Source: FCC ULS · As of 2026-09-11

K6DUF

Expired

Siess, Matthew A

Location: Coopersburg, PA
Class: General
Granted: 2013-06-25
Expires: 2023-06-25
Previous call: KK6DUF
FRN: 0022360317

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Vanity availability

286d

Available on 2027-06-24

K6DUF expired on 2023-06-25. Hold ends in 286 days.

Last held by Siess, Matthew A (PA).

Confidence: High

Expired licenses get a 2-year FCC renewal grace period followed by the 2-year hold. The date shown accounts for both, so it's the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

KK6DUFcancelled· G
Siess, Matthew ACAgranted 2013-04-23cancelled 2013-06-25

License history

0 events

No recorded events.

More vanity slots coming available

From Pennsylvania

All →

KB3ZFD 2026-09-11
KB3ZFE 2026-09-13
KC3WYD 2026-09-13
KA3KEP 2026-09-14
KA3UYT 2026-09-14

Starting with K6

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K6IGU UT · 2026-09-14
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K6KA TN · 2026-09-25
K6KOA HI · 2026-10-01
K6YUZ CA · 2026-10-01

Full history → Vanity availability → Callsign genealogy →