The Federal Communications Commission (FCC) has granted a total of 921 licenses and call signs in the category of Amateur license in Boulder, Colorado. 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 |
|---|---|---|
| KF0GNI | John, Carl A | 2021-08-24 |
| KF0GOJ | Holcombe, Dalton M | 2021-08-30 |
| KF0GOK | Holcombe, Richard A | 2021-08-30 |
| KF0GOM | LaRocco, Jeremiah S | 2021-08-30 |
| KF0GSA | Ornstein, Jason | 2021-09-20 |
| KF0GSE | Brodsky, Tess | 2021-09-20 |
| KF0HLO | Mallo, Gary S | 2021-12-13 |
| KF0HWQ | Howarth, Richard J | 2022-02-08 |
| KF0ICZ | Fedor, Adam S | 2022-02-28 |
| KF0IEF | Marshall, Robert A | 2022-03-07 |
| KF0IFB | Larson, Brody M | 2022-03-08 |
| KF0IHQ | FYHRIE, ADALYN | 2022-03-15 |
| | ||
| KF0IKC | Harris, Adrian | 2022-03-21 |
| KF0IKD | Jordan, Jeffrey | 2022-03-21 |
| KF0ILQ | HELENURM, KAIUS | 2022-03-28 |
| KF0INO | Lefkoff, Henry J | 2022-04-04 |
| KF0IPG | Reed, Todd S | 2022-04-05 |
| KF0IZD | Vandenberge, Anton M | 2022-05-04 |
| KF0IZE | Vitti, Gabriel | 2022-05-04 |
| KF0IZG | Sahli, Jake | 2022-05-04 |
| KF0IZX | HORNEY, WILLIAM D | 2022-05-04 |
| KF0IZY | Bloomfield, Mark S | 2022-05-04 |
| KF0JAC | Hanley, Luke C | 2022-05-04 |
| KF0JAD | Marfone, Louis A | 2022-05-04 |
| KF0JBN | Stanfa, Nicholas J | 2022-05-04 |
| KF0JGS | Lewis, Ryan | 2022-05-17 |
| KF0JSX | Sartor Mallo, Leslie A | 2022-06-28 |
| KF0JTN | Mims, Mark M | 2022-06-29 |
| KF0JZW | Abraham, Sean | 2022-08-04 |
| KF0KCC | Sirianni, Cynthia M | 2022-08-16 |
| KF0KCP | Wyburn-Powell, Christopher | 2022-08-17 |
| KF0KFI | Calderone, Tyler | 2022-08-30 |
| KF0KKJ | Williams, Manny A | 2022-09-27 |
| KF0KMV | Holleman, Brandon J | 2022-10-05 |
| KF0KOT | WATTS, NICOLE | 2022-10-15 |
| KF0LBP | Striegl, Elizabeth R | 2022-12-15 |
| KF0LCB | Emerson, Lori A | 2022-12-16 |
| KF0LLW | Ansburg, Ethan W | 2023-02-08 |
| KF0LMS | Stong, Nicholas T | 2023-02-14 |
| KF0LRV | Stewart, Oliver | 2023-02-28 |
| KF0LUA | Letts, Brian P | 2023-03-07 |
| KF0LUM | Rubino, Robert J | 2023-03-08 |
| KF0LWL | Haile, Jackson C | 2023-03-14 |
| KF0LYN | ROMASHKOVA, ELENA | 2023-03-18 |
| KF0MBV | Karaulanov, Todor | 2023-03-28 |
| KF0MBW | Madrid, Nico | 2023-03-28 |
| KF0MLA | Priester, Mark | 2023-04-27 |
| KF0MMM | Gasiewski III, Albin J | 2023-05-02 |
| KF0MNR | Johnson, Daniel | 2023-05-05 |
| KF0MNX | Wawrzynek, Edward | 2023-05-05 |
| KF4QLV | HUDSON, DARREN D | 2007-10-27 |
| KF4WDV | DO, MARTIN T | 2007-12-18 |
| KF5GNH | Jacka, Jerry K | 2020-03-05 |
| KF6LGA | JENKINS, DAVID L | 2014-11-27 |
| KF6LHX | PEGG, TIM | 2017-08-03 |
| KF6NGC | GARZA JR, JOSE E | 2017-11-22 |
| KF6NHN | EMDUR, JOSH A | 2018-07-03 |
| KF6QKH | COLE, WESLEY D | 2019-08-22 |
| KF7GOG | DeWitt, John P | 2019-09-27 |
| KF7IYK | Klug, Kevin J | 2020-06-10 |
| KF7QZK | May, Darrick G | 2022-10-25 |
| KF7YCC | George, Amrita M | 2022-06-22 |
| KG0UL | ECKS, FRED F | 2015-01-03 |
| KG0WF | POTEET, KIMMET L | 2012-02-04 |
| KG2JP | ROSENCRANTZ, PETER I | 2006-11-22 |
| KG3A | CARR, ALFRED K | 2013-09-24 |
| KG5GF | MESSICK, SANDRA G | 2008-02-07 |
| KG5YGT | Du Plessis, Carl W | 2018-02-09 |
| KH6SB | BARNES, STEPHEN S | 2004-08-13 |
| KI0M | Bixby, Norma L | 2015-10-19 |
| KI0MG | LYNCH, WILLIAM | 2018-02-27 |
| KI0NO | Ruff, Craig R | 2015-11-10 |
| KI7KKX | Bailey, Paul S | 2017-02-15 |
| KJ4BRJ | Hymel, Shawn | 2018-05-01 |
| KJ4DWT | Vildzius, Matthew J | 2008-05-05 |
| KJ6DCU | ACKLEY, SUZANNE M | 2019-08-23 |
| KJ6DEV | COSTANZA, BRYAN T | 2019-08-07 |
| KJ6DVL | Cline, James E | 2019-08-30 |
| KJ6ESA | JOHNSON, MICHAEL | 2021-09-09 |
| KJ6GHL | Schwab, Gregory F | 2020-01-08 |
| KJ6PID | ALBEE, MARY J | 2021-05-12 |
| KK6AXY | Houser, Adam | 2022-11-16 |
| KK6FBO | Wallace, Tyler J | 2013-06-18 |
| KK6NQF | Iascone, Spencer C | 2014-06-25 |
| KK6WOU | Sharkey, Jeffrey A | 2015-10-01 |
| KL2YI | Frey, Jesse M | 2020-01-14 |
| KM4TXD | Martinelli, Brandon B | 2016-05-16 |
| KN6KUX | Mars, Julian E | 2020-09-15 |
| KN6T | BARRETT, JON S | 2012-10-20 |
| KO4EMA | Yates, Paul M | 2020-06-19 |
| KR7C | GIBBS, STANLEY M | 2017-01-11 |
| N0ANO | DUGGER, DONALD D | 2013-09-14 |
| N0AWZ | Crary, Willard D | 2014-12-23 |
| N0BZO | AMMANN, KELLY G | 2016-08-09 |
| N0DDL | JUDSON, JON E | 2007-05-09 |
| N0DET | SITTNER, DAVID J | 2022-02-15 |
| N0DKP | BELLIPANNI, FRANK P | 2007-04-25 |
| N0DNC | BUHSE, LORNA | 2016-12-02 |
| N0FVK | MILLIS, CATHERINE R | 2004-01-06 |
| N0FZB | Laage, Michael C | 2012-10-18 |
