The Federal Communications Commission (FCC) has granted a total of 47 licenses and call signs in the category of Amateur license in Las Piedras, Puerto Rico. Select a call sign from the table below to view its details such as the date of authorization, expiration date, service description, and so forth.
| Call Sign | License Holder Name | Date of Authorization |
|---|---|---|
| KG5FVY | Rosado Marin, Juan C | 2015-02-13 |
| KP4U | BRINGAS, RENATO | 2011-12-17 |
| NP3CQ | GOMEZ MARTINEZ, JOSE A | 2008-05-21 |
| NP3LT | COLON, ANA M | 2018-12-04 |
| WP3NB | Rodriguez-Sanabria, Delfin | 2011-10-06 |
| WP3NW | SANTANA MARTINEZ, JOSE M | 2021-09-17 |
| WP3OS | Lopez-Gonzalez, Jose A | 2011-12-23 |
| WP3PG | Rodriguez-Sanabria, Lilliam | 2011-12-23 |
| WP3PU | Rodriguez-Roman, Hector I | 2012-02-25 |
| WP3QK | Lugo-Torres, Carlos R | 2012-05-22 |
| WP4BO | RONNSONI-MARTINES, NOLBELT | 2014-04-16 |
| WP4CD | Rodriguez-Mojica, William | 2014-06-18 |
| WP4DLN | RODRIGUEZ SR, HECTOR | 2018-10-03 |
| WP4FDY | RIVERA, PEDRO | 2006-08-10 |
| WP4GIT | PERALES SANTIAGO, MARIO L | 2006-05-16 |
| WP4GU | SOCARRAS, ANGEL H | 2017-02-28 |
| WP4LSC | HUERTAS, JOSE A | 2013-01-02 |
| WP4MPV | Rodriguez-Delgado, Carlos J | 2014-08-20 |
| WP4MRQ | CAMACHO RODRIQUEZ, JOSE E | 2004-07-14 |
| WP4NPU | Rivera-Santos, Gina | 2016-05-10 |
| WP4OAB | Diaz-Aponte, Marilyn | 2019-07-02 |
| WP4OCI | Alejandro-Alejandro, Jesus E | 2009-11-04 |
| WP4OCK | SANTIAGO-RIVERA, AUGUSTO | 2020-11-18 |
| WP4OEL | Quinones Alejandro, Aida | 2020-01-06 |
| WP4OHO | Cruz-Davila, Orlando | 2010-12-08 |
| WP4OHP | Negron-Negron, Sandra I | 2010-12-08 |
| WP4OHZ | Rodriguez-Velasquez, Benedicto | 2010-12-22 |
| WP4OII | Radio Operators DX De Puerto Rico | 2011-02-09 |
| WP4OIR | Villegas-Torres, Wanda I | 2011-03-04 |
| WP4OKZ | Cruz-Rodriguez, Jose M | 2011-08-04 |
| WP4OLU | Flecha-Reyes, Luis R | 2011-09-28 |
| WP4ONY | Berrios-Torres, Vilma I | 2022-06-22 |
| WP4OON | VELAZQUEZ-CALDERON, JACQUELINE | 2012-07-13 |
| WP4OOS | NIEVES-LEBRON, LUZ B | 2012-07-13 |
| WP4OQK | Torres-Rivera, Narda J | 2012-12-28 |
| WP4OQY | Puerto Rico Ham Radio Community Club | 2013-03-04 |
| WP4PIL | Cuadrado Colon, Carlos | 2015-01-02 |
| WP4PMF | CASADO APONTE, FABIAN | 2015-08-04 |
| WP4PNB | Martinez Mendez, Wilfredo | 2015-10-06 |
| WP4PRU | Asociacion De Radioaficionados De Puerto Rico Inc | 2016-07-14 |
| WP4PSK | Pinero Mendez, Ana H | 2016-09-06 |
| WP4PUQ | Las Piedras DX Group | 2017-05-02 |
| WP4PZL | Cosme - Rivera, Henry | 2018-03-01 |
| WP4QYI | De Leon-Diaz, Nelson | 2019-02-27 |
| WP4RCM | Laureano-Ocasio, Armando | 2019-05-22 |
| WP4RNR | Ramos Calderon, Ramon L | 2020-08-20 |
| WP4TI | MARIN, JESUS | 2013-03-13 |
