The Federal Communications Commission (FCC) has granted a total of 185 licenses and call signs in the category of Restricted Operator 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 |
|---|---|---|
| RR00105874 | henderson, ralph | 2014-08-29 |
| RR00111206 | Cummings, Stuart L | 2015-04-14 |
| RR00111969 | Grabb, Oliver W | 2015-05-13 |
| RR00113028 | Van Pelt, Martin | 2015-06-26 |
| RR00113703 | Ball, Douglas D | 2015-07-25 |
| RR00114384 | Wetzel, Michael R | 2015-08-20 |
| RR00114507 | markel, michael j | 2015-08-25 |
| RR00115251 | Hemmick, Paul S | 2015-09-30 |
| RR00115253 | HIRSCH, MICHAEL | 2015-09-30 |
| RR00120061 | Kirlin, Donald William C | 2016-03-29 |
| RR00120559 | CONLEY, STEPHEN A | 2016-04-13 |
| RR00122576 | Dwyer, Lawrence W | 2016-06-22 |
| | ||
| RR00122961 | Byrn, Gordon S | 2016-07-07 |
| RR00124832 | Salt, Warren G | 2016-09-15 |
| RR00124955 | Dorsey, Quentin C | 2016-09-20 |
| RR00125032 | Pifer, Justin N | 2016-09-21 |
| RR00126932 | Brenza, Xavier J | 2016-11-29 |
| RR00127430 | Thompson, Benjamin P | 2016-12-17 |
| RR00128970 | Rasmussen, Erik D | 2017-02-10 |
| RR00129406 | Mathews, William | 2017-02-23 |
| RR00129508 | Witter, William P | 2017-02-28 |
| RR00130138 | Reid, Jason H | 2017-03-21 |
| RR00132649 | Pigliacampo, Anthony | 2017-06-06 |
| RR00136421 | Sykes, Alex D | 2017-10-06 |
| RR00136964 | Beaty, Mark D | 2017-10-24 |
| RR00137487 | Carter, Nicholas J | 2017-11-08 |
| RR00142785 | Phillips, Andrea S | 2018-04-17 |
| RR00145081 | Gunnlaugsson, Ty J | 2018-06-20 |
| RR00145782 | Rizvi, Nasir | 2018-07-11 |
| RR00149893 | Engel, Shelly J | 2018-11-08 |
| RR00150368 | Calkins, Robert | 2018-11-24 |
| RR00151749 | Wiseman, Kenneth G | 2019-02-01 |
| RR00152732 | Hoke, Mitchell | 2019-02-15 |
| RR00153134 | Stahl, Jan | 2019-02-26 |
| RR00153849 | Emmerich III, Gerald H | 2019-03-12 |
| RR00155282 | Snider, Scott R | 2019-04-16 |
| RR00156314 | Wright, David | 2019-05-14 |
| RR00156784 | O'Winter, Patrick | 2019-05-23 |
| RR00157891 | Walters, Alec W | 2019-06-25 |
| RR00158315 | Glenn, shannon | 2019-07-06 |
| RR00159512 | Fraser, Jennifer H | 2019-08-09 |
| RR00163550 | Darnell, Asa M | 2019-12-03 |
| RR00163927 | Morley, Stuart | 2019-12-12 |
| RR00165771 | Stevens, John | 2020-02-04 |
| RR00168215 | Grunsfeld, John M | 2020-05-07 |
| RR00168325 | Britton, Terence | 2020-05-15 |
| RR00168444 | massey, james | 2020-05-27 |
| RR00168902 | Wilczak, Paolo | 2020-06-24 |
| RR00170467 | Thompson, Nathan C | 2020-10-09 |
| RR00173642 | Conway, Sean J | 2021-03-23 |
| RR00174707 | BULK, HEATHER L | 2021-04-24 |
| RR00177559 | Elston 638, Jack | 2021-07-13 |
| RR00178037 | Cifelli, Luke | 2021-07-24 |
| RR00179335 | Healy, Alex P | 2021-08-25 |
| RR00179728 | Seibert, Michael A | 2021-09-03 |
| RR00182724 | Pinnell, Benjamin | 2021-11-19 |
| RR00187064 | Erickson, Steven A | 2022-03-04 |
| RR00188031 | Welt, Cameron D | 2022-03-26 |
| RR00188524 | Daughtry, Gregory M | 2022-04-07 |
| RR00189227 | Carey, Larkin | 2022-04-26 |
| RR00190498 | Seigal, Max | 2022-05-19 |
| RR00192002 | Montgomery, Christina L | 2022-06-17 |
| RR00192099 | Katnik, Margaret A | 2022-06-22 |
| RR00192264 | Jacobsen, Jordan C | 2022-06-23 |
| RR00192434 | Wright III, Cornell G | 2022-06-28 |
| RR00193175 | Harwood, Matthew | 2022-07-13 |
| RR00193510 | Griffler, Jordon M | 2022-07-20 |
| RR00194675 | Boenish, Laura | 2022-08-16 |
| RR00196902 | Johnston, Eric R | 2022-09-28 |
| RR00198865 | Koh, Joewie J | 2022-11-08 |
| RR00199328 | Reivich, Lucas D | 2022-11-17 |
| RR00199406 | Ross, Evan L | 2022-11-18 |
| RR00199526 | Haddock, Jason | 2022-11-22 |
| RR00201092 | Granof, Joshua K | 2022-12-31 |
| RR00201830 | Mertz, Harry Z | 2023-01-14 |
| RR00203271 | McGee, Nyal G | 2023-02-10 |
| RR00203980 | Robertson, Austin J | 2023-02-24 |
| RR00204524 | Yuill, Liam | 2023-03-07 |
| RR00205691 | Yuill, Liam | 2023-03-28 |
| RR00206464 | Olson, Jared | 2023-04-14 |
| RR00206910 | Priester, Mark V | 2023-04-25 |
| RR00206950 | McKnight, Douglas | 2023-04-25 |
| RR00207036 | Hauser, Lauren C | 2023-04-26 |
| RR00207299 | Smart, James W | 2023-05-02 |
| RR00207395 | Xu, Kevin J | 2023-05-03 |
