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

NP4TT

Active

Radio Club Mala Hierba Azul

Location: Humacao, PR
Granted: 2021-06-15
Expires: 2031-06-15
Previous call: KY4AA
FRN: 0004511275

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Held

Currently held

NP4TT is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KY4AAcancelled
Radio Club Mala Hierba AzulPRgranted 2011-11-09cancelled 2021-06-15
KG4LCEcancelled
DAWSON HILL CONTEST CLUBKYgranted 2001-01-05cancelled 2001-02-06

License history

0 events

No recorded events.

More vanity slots coming available

From Puerto Rico

All →

WP4TLD 2026-09-10
K5DTC 2026-09-14
WP4LKC 2026-09-14
KP4ECD 2026-09-16
WP3TU 2026-09-16

Starting with NP4

All →

NP4YZ PA · 2027-06-18
NP4ST PR · 2027-07-26
NP4AO MA · 2027-08-12
NP4HC PR · 2028-02-07
NP4ZJ PR · 2028-03-04

Full history → Vanity availability → Callsign genealogy →