| Callsign | KB1UMZ |
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 2010-06-25 |
| Effective Date | 2010-06-25 |
| Expire Date | 2020-06-25 |
| Cancel Date | 2013-06-01 |
| Last Action Date | 2013-06-01 |
| End Date | 2013-06-01 |
| Available Date | 2015-06-02 |
| Applicant Type | B - Amateur Club |
| Entity Name | Greater Westfield Medical Reserve Corps |
| Street Address / Locality | 58 Vadnais St Westfield, MA 01085 |
| County | Hampden County |
| Zip Location | 42°09'12.6"N 72°46'17.8"W |
| Maidenhead | FN32od |
| FRN | 0019975754 |
| Licensee ID/SGIN | L01579169 / 000 |
| Licensee Class | |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 1 / 1 / MA |
| Prev Callsign / Prev Class | |
| Next Callsign | K1WSU |
| Trustee Callsign / Trustee Name | W1JWN Noble Sr, John W |
| Vanity Type | |
| ULS File Number | 0004299337 |
| Phonetic weight / Morse weight | 11 / 78 |