The Federal Communications Commission (FCC) has granted a total of 32 licenses and call signs in the category of Restricted Operator license in Arnold, Maryland. 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 |
|---|---|---|
| RR00001332 | MERZKE, DANIEL J | 2001-07-04 |
| RR00010264 | Hayes, Sharon A | 2003-01-23 |
| RR00014880 | STOLARCZYK MR., STEPHEN R | 2003-11-11 |
| RR00016088 | Toth Jr., Tibor G | 2004-01-13 |
| RR00020679 | Davis, Adam M | 2004-07-01 |
| RR00022719 | Brighton, Stephen H | 2004-09-23 |
| RR00031149 | Riley, Michael P | 2005-08-30 |
| RR00038025 | Oliver, Paul | 2006-06-16 |
| RR00047653 | Klein, Kevin J | 2007-05-01 |
| RR00049103 | Gleaves, Mary E | 2007-06-14 |
| RR00059621 | Wilson, Kirk S | 2008-06-03 |
| RR00084100 | Suckling Mr, Michael J | 2012-01-18 |
| RR00104683 | Dalby, Philip H | 2014-07-22 |
| RR00131337 | Missler Jr., James M | 2017-04-25 |
| RR00132026 | Ray, Wesley | 2017-05-16 |
| RR00135929 | Lipstreu, William F | 2017-09-21 |
| RR00140990 | Hupp, Jon A | 2018-02-24 |
| RR00141179 | PASIEKA, ROBERT E | 2018-03-02 |
| RR00143331 | White, Stuart P | 2018-05-02 |
| RR00145448 | Hertel, Stephen R | 2018-06-29 |
| RR00150047 | Quilliam, Kevin | 2018-11-14 |
| RR00150951 | Campbell, David | 2018-12-14 |
| RR00166524 | Campo, John J | 2020-02-22 |
| RR00186596 | McGee, Miles E | 2022-02-23 |
| RR00191374 | McLean, Mike | 2022-06-07 |
| RR00192584 | Buhrer, Russell D | 2022-06-30 |
| RR00193374 | Lime, Robert F | 2022-07-19 |
| RR00196671 | Murphy, Matthew M | 2022-09-24 |
| RR00202641 | Kirkpatrick, Brendan M | 2023-01-31 |
| RR00203705 | Leigh, Jeffrey | 2023-02-22 |
| RR00205250 | Tiedke, Keith C | 2023-03-21 |
| RR00205340 | Tiedke, Alison J | 2023-03-22 |
