The Federal Communications Commission (FCC) has granted a total of 53 licenses and call signs in the category of Amateur license in Trujillo Alto, 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 |
|---|---|---|
| KP4DSM | VILA, PEDRO M | 2007-10-29 |
| KP4FIJ | NAZARIO COLON, EMILIO A | 2005-05-05 |
| KP4GC | ACEVEDO RIVERA, JORGE A | 2021-07-01 |
| KP4LA | ZAMBRANA SR, JACINTO | 2013-04-26 |
| KP4YV | RIVERA, PEDRO J | 2021-01-08 |
| N4JZD | BANKS JR, ALBERT J | 2013-05-15 |
| NP4JT | MEJIAS, ANGEL R | 2019-12-10 |
| NP4VR | SOBRINO, ELENA | 2006-09-15 |
| WP3GW | Santana-Diaz, Angel L | 2020-01-07 |
| WP4AQP | SANTIAGO RAMOS, AXEL | 2007-03-20 |
| WP4BCK | RIVERA, ELADIO | 2006-06-02 |
| WP4BH | GERENA-RIVERA, TOMAS A | 2015-03-24 |
| | ||
| WP4IRS | ABOLAFIA ESTEVA, PABLO | 2020-11-25 |
| WP4IXI | HERRAN GARCIA, JULIO | 2019-01-30 |
| WP4KLF | FIGUEROA, BERNARDO | 2021-08-11 |
| WP4KON | arroyo Galarza Jr, Victor M | 2011-12-16 |
| WP4KSS | Cruz Echeandia, Justino | 2012-01-30 |
| WP4MBF | ADORNO OTERO, JOSE A | 2013-11-28 |
| WP4MSE | D ALESSANDRO, KENNETH A | 2004-07-29 |
| WP4NBL | Hudo Castaner, Rafael J | 2006-03-03 |
| WP4NCQ | NORRIS GONZALEZ, WILLIAM J | 2015-08-19 |
| WP4NQN | Jimenez-Barquin, Ricardo L | 2015-11-04 |
| WP4OBR | Cruz- Torres, Marcos U | 2019-06-19 |
| WP4OOX | PEREZ-RODRIGUEZ, PEDRO | 2012-07-13 |
| WP4OPA | Adorno-Orellana, Emma I | 2012-08-02 |
| WP4OQE | Morales-Santiago, Jamie D | 2012-12-07 |
| WP4ORW | ROVIRA RIVERA, JUAN R | 2023-02-28 |
| WP4ORX | ROVIRA MELENDEZ, GRACE M | 2013-03-12 |
| WP4OYU | DILAN, JOSE A | 2014-04-28 |
| WP4PBO | Roman-De Jesus, Julio C | 2014-06-03 |
| WP4PBP | De La Torre-Maldonad, Vicente | 2014-06-03 |
| WP4PGU | Diaz-hernandez, Eleazar | 2014-10-29 |
| WP4PQQ | Lopez Hernandez, Juan A | 2016-03-23 |
| WP4PRR | Soto Arocho, Javier | 2016-07-13 |
| WP4PSE | RIVERA, EDUARDO | 2016-09-06 |
| WP4PSF | Gonzalez Oliva, Edwin F | 2016-09-06 |
| WP4PSY | Velez Segarra, Vladimir | 2016-10-03 |
| WP4PUK | Morales De Jesus, Luis G | 2017-03-06 |
| WP4QBH | Perez-Marcano, James | 2018-05-08 |
| WP4QBM | Collazo-Martinez, Juan A | 2018-05-08 |
| WP4QLU | CLAUDIO, EMMANUEL | 2018-10-17 |
| WP4RCX | Hernandez - Negron, Diana | 2019-05-31 |
| WP4RDC | Daly - Ferres, Johandy | 2019-05-31 |
| WP4RDK | Betancourt - Rivera, Jose A | 2019-07-10 |
| WP4REJ | Beras-Hernandez, Christian E | 2019-08-02 |
| WP4RGX | Diaz-Nieves, Mayra E | 2019-09-25 |
| WP4RNG | DILAN, SANTIAGO H | 2020-07-13 |
| WP4RNN | VENEGAS ORTIZ, MIGUEL A | 2020-07-27 |
| WP4RPS | DE JESUS ALFONZO, GERARDO | 2020-10-13 |
| WP4RSB | Rajaballey, Michael A | 2021-01-20 |
| WP4RSV | JARED GUZMAN, JOSE | 2021-03-15 |
| WP4RYN | Solier-Gonzalez, Julio C | 2021-07-26 |
| WP4SDK | CORREA AGUILAR, IRIS | 2022-01-31 |
