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

WP4MBM

Cancelled

RIVERA COLON, EDWIN A

Location: CAGUAS, PR
Class: General
Granted: 2003-07-29
Expires: 2013-06-08
FRN: 0009371519

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

Vanity availability

Available

Available now

WP4MBM cleared its 2-year hold on 2008-10-06. Eligible for vanity application.

Last held by RIVERA COLON, EDWIN A (PR).

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 →

Prior holders later became

NP4ERactive· G
RIVERA COLON, EDWIN APRgranted 2018-06-30

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 WP4

All →

WP4TLD PR · 2026-09-10
WP4LKC PR · 2026-09-14
WP4MRN UT · 2026-09-17
WP4TKL PR · 2026-09-17
WP4KNF PR · 2026-09-18

Full history → Vanity availability → Callsign genealogy →