Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K2SFS license history

Held by BIRKEN, JOHN

Every recorded ULS event for this callsign — grants, renewals, modifications, expirations, and transfers. Sourced from the FCC daily transaction file.

License history

6 events

Renewed 2026-09-04

LIREN
[LIREN]
Renewed 2016-08-02

LIREN
[LIREN]
Address update 2015-05-06

LIAUA
[LIAUA]
Address update 2008-09-09

LIAUA
[LIAUA]
Renewed 2006-09-13

LIREN
[LIREN]
frn_change 2006-09-13

ESCFRN
[ESCFRN]

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