The Federal Communications Commission (FCC) has granted a total of 77 licenses and call signs in the category of Amateur license in Newcastle, California. 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 |
|---|---|---|
| AD5RX | NALL, JONATHAN N | 2018-10-25 |
| AG6ML | Colvin, Bryan J | 2012-06-05 |
| K5FOA | CLADER, MICHAEL D | 2016-02-24 |
| K6LGU | JOHNSON, SAMUEL B | 2016-02-17 |
| K6VNI | ANDERSON, NEIL G | 2016-07-21 |
| KA6BAZ | FORMAN, JOHN S | 2004-08-09 |
| KB6JOO | CROTHERS, DONALD L | 2015-09-11 |
| KB6PQT | MARR, JAMES R | 2017-02-22 |
| KB6TZ | METZ, MICHAEL D | 2014-09-09 |
| KB6YCA | MARR, MARY A | 2017-12-05 |
| KC6MMW | JOHNSON, WALTER L | 2011-06-02 |
| KC6POY | SMITH, MARLO A | 2010-08-30 |
| | ||
| KD6HOF | THORSON, TIM S | 2022-01-26 |
| KD6MLU | RICHARDSON, STROWBRIDGE B | 2012-07-13 |
| KD6MVE | JOHNSTON II, CHARLES E | 2012-06-05 |
| KD6WET | RODRICK, LESLIE A | 2013-03-22 |
| KE6ETW | CROSS JR, DON M | 2013-11-20 |
| KE6IKS | KALE, ERICK J | 2014-05-03 |
| KE6IQO | BROWN, ROGER D | 2015-03-17 |
| KE6NFX | DOBROVOLNY, LORNA J | 2014-10-17 |
| KE6VOT | LEASE, STEVEN W | 2005-04-21 |
| KF6FVA | MACKEN, MARTIN J | 2016-08-30 |
| KF6GYB | RUEB, DUANE | 2006-10-10 |
| KF6LXN | CUNNINGHAM, DEBORAH M | 2017-04-25 |
| KF6RFW | TIJSSELING, HEIDI A | 2018-05-01 |
| KF6ZEX | MAVY, DIANE L | 2009-10-30 |
| KG6HDI | Reynolds, Gregory A | 2021-06-22 |
| KG6LIJ | Seeley, Lynn F | 2012-02-23 |
| KG6QIL | Plaessmann, Henry G | 2023-02-16 |
| KI6BWK | SEELEY, CAROLANN | 2016-02-03 |
| KI6QJA | Williams, Rick J | 2008-05-14 |
| KI6SPT | CARDINET, JASON J | 2018-06-06 |
| KI6SQE | McINTOSH, SCOTT W | 2008-08-15 |
| KJ6AXR | Holcomb, Bill E | 2019-06-03 |
| KJ6DYZ | MERRILL, ZACK A | 2019-11-05 |
| KJ6HYI | Anderson, Kristine L | 2010-05-18 |
| KJ6JIM | MORNINGSTAR, JOHN A | 2020-06-06 |
| KJ6MP | GROVE, THOMAS G | 2019-12-27 |
| KJ6NKJ | Beckstead Nelson, Cristi A | 2011-03-23 |
| KJ6VPA | DeMARTINI, REX S | 2012-04-09 |
| KJ6VPB | WOLF, STEVEN | 2012-04-09 |
| KJ6WME | ROJAS, NICHOLE | 2012-05-07 |
| KJ6WNL | Finney, Kathryn D | 2012-05-10 |
| KJ6YJE | Finney, Kevin T | 2012-06-12 |
| KJ6YSH | Colvin, Rebecca A | 2012-07-11 |
| KK6HSG | Ratliff, Marillyn M | 2013-11-08 |
| KK6JPB | Batchelor, Annette | 2014-02-11 |
| KK6TSR | Brown, Robert O | 2015-04-28 |
| KK6YSI | Hendrickson, Brandon L | 2015-11-12 |
| KM6EHO | COMEAU, JUSTIN J | 2016-07-26 |
| KM6JBJ | Isabell, Lisa A | 2017-03-13 |
| KM6JBK | Isabell, Mark A | 2017-03-13 |
| KM6PBE | Tallman, Melissa L | 2017-12-13 |
| KM6TOQ | Osborne, Chris | 2018-05-30 |
| KM6YGG | Dixon, Mike D | 2018-11-28 |
| KM6YLS | Heisler, Payton F | 2018-12-07 |
| KM6YLT | Heisler, Bradley P | 2018-12-07 |
| KM6YLU | Heisler, Duncan P | 2018-12-07 |
| KN6AYF | Chavez, Judy M | 2019-04-04 |
| KN6AYG | Chavez, Robert M | 2019-04-04 |
| KN6KWJ | Ganschow, Michael W | 2020-09-17 |
| KN6POZ | Alexander, Curtis S | 2021-07-12 |
| KN6VGU | Smith, David M | 2022-07-29 |
| KN6WER | Jacobs, Mick R | 2022-10-20 |
| KN6YNN | Heisterkamp Jr, James D | 2023-02-14 |
| KN6YNY | Smith, Sean | 2023-02-14 |
| KQ6RT | CUNNINGHAM, GARY L | 2015-02-18 |
| N6DHQ | ROGERS, RHONDA L | 2019-04-02 |
| N6DRW | METZ, PATRICE D | 2014-10-07 |
| N6JSL | DUTRA, SANDY L | 2014-11-05 |
| N6NQJ | SHOCKLEY, STUART D | 2017-06-28 |
| N7VLR | RODRICK, CHARLES D | 2013-03-22 |
| W4YUS | WILLIAMS, KENT G | 2011-01-20 |
| WA6SAZ | Kibler, Bill D | 2016-01-13 |
| WB6TAH | MISONO, GLENN M | 2017-08-11 |
| WB6TKE | MATHEW, BRANDON H | 2012-01-18 |
| WD6BPR | HAAGEN SMIT, JAMES W | 2017-04-04 |
