The Federal Communications Commission (FCC) has granted a total of 48 licenses and call signs in the category of Amateur license in Castroville, Texas. 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 |
|---|---|---|
| AF5EQ | Harrison, Craig W | 2012-03-02 |
| AI5HI | Bednarek, Gerard J | 2021-06-11 |
| K5YDE | MENARD SR, WILLIAM M | 2019-01-30 |
| KA0LJS | KANKO, MARK A | 2022-12-30 |
| KA5GBK | EBNER, GEORGE V | 2020-04-18 |
| KB0DNG | HARDIN, CHARLES K | 2008-04-15 |
| KB5ASU | SIMONSON, DAVID M | 2018-01-17 |
| KB5BMU | GARCIA, NANCY P | 2006-11-21 |
| KC5GIQ | EDLUND, POLLY A | 2014-04-30 |
| KC5JIL | DAVIS, BETTY L | 2014-07-29 |
| KC5NDI | JOHNSON, GEORGE L | 2015-02-17 |
| KC5PSI | JOHNSON, MARIA V | 2015-10-13 |
| KD5FAZ | MARTINEZ, GLORIA S | 2009-01-03 |
| KD5GXM | LECHNER, LINDA A | 2019-04-09 |
| KD5HLV | KNIPPA, GREGORY D | 2019-04-24 |
| KE5KDT | Lee, Robert | 2016-07-21 |
| KE5OUG | Mc COOL, RONALD B | 2007-06-07 |
| KE5SMK | Chase, Denea R | 2008-02-01 |
| KE5SMQ | Chessher, Joshua L | 2008-02-01 |
| KE5SMR | Fuentes, Michael A | 2008-02-01 |
| KE5SMU | Fuenres, Marques J | 2008-02-01 |
| KE5SMV | Eddins, Christina P | 2018-03-15 |
| KF5HFT | Alvord, Daniel A | 2020-08-20 |
| KF5NZY | McCullom, Joseph A | 2012-01-12 |
| KF5YFV | Walbourn, Charles E | 2013-09-12 |
| KG5HYP | Tschirhart, Sid C | 2015-06-12 |
| KG5IDE | Tschirhart, Michael Z | 2015-06-24 |
| KG5KKN | Meeks, Jaxon C | 2015-11-23 |
| KG5WBR | Knippa, Adam G | 2017-11-21 |
| KG5WER | Drew, Kenneth F | 2017-11-28 |
| KG5ZKW | White, David W | 2018-04-24 |
| KI5CIC | Hendrix, Gary D | 2018-11-20 |
| KI5GBA | Geltz, Katherine E | 2019-08-16 |
| KI5ISD | Knippa, Andrew G | 2020-04-09 |
| KI5NHL | LAPORTE, JASON D | 2021-01-27 |
| KI5PLU | BAUCHMAN, RYAN | 2021-04-19 |
| KI5SW | CASEY, PATRICK J | 2011-05-23 |
| KI5VKS | Rozyskie Jr, Elwin A | 2022-05-19 |
| KI5VLJ | Remmers, Justin L | 2022-05-20 |
| KI5WRR | Belohlavek, Charles L | 2022-08-17 |
| KI5WTM | Wilkin, Dorsey | 2022-08-23 |
| KJ5AHB | GUINTHER, HAYDEN | 2023-03-22 |
| N5FXL | CHAMBERS, KAREN M | 2019-04-19 |
| N5ILC | GARCIA, PAUL J | 2016-06-23 |
| N5SEY | HABY Mr, DARREN C | 2021-01-05 |
| N5VLV | Lechner, Curtis W | 2021-08-10 |
| N5VRE | Martinez Jr, Raymond | 2012-11-14 |
| WD5AFI | DELAVAN JR, EMERY L | 2022-06-17 |
