Field Name · Applicant
Italic names are derived; accent values differ from the applicant’s prior license.
| Applicant Type | I - Individual |
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| Entity Type | L - Licensee or Assignee |
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| Entity Name | Mahoney, Robert C |
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| Attention | |
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| First Name / Middle Init / Last Name / Name Suffix | Robert C Mahoney |
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| Street Address | 937 Rolling Holly Dr |
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| Po Box | |
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| Locality | Great Falls |
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| County | Fairfax County |
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| State | VA - Virginia |
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| Postal Code | 22066 |
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| Zip Location | 39°00'44.5"N 77°18'07.0"W |
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| Maidenhead | FM19ia |
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| FRN | 0029291812 |
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| Geo Region | 4 / VA |
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| Licensee ID/SGIN | L02331659 / 000 |
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| Callsign | KO4CMK |
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| Last Action Date | 2026-03-31 |
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| Radio Service | HA - Amateur |
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| App Purpose | MD - Modification |
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| App Source | I - Online |
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| App Status | G - Granted |
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| Entered Timestamp | 2026-03-12 |
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| Fee Control Num | PGC5161502 |
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| Orig Purpose | MD - Modification |
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| Receipt Date | Thu 2026-03-12 |
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| Payment Date | 2026-03-13 |
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| Is From Vec | |
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| Is Trustee | |
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| Operator Group | A - 1x2, 2x1, 2x2 |
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| Licensee Class | E - Amateur Extra |
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| New Seq Callsign | N |
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| Trustee Callsign | |
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| Trustee Name | |
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| ULS Group / ULS Region | A / 4 |
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| Prev Callsign / Prev Class | |
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| Vanity Relationship | |
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| Vanity Type | E - By List |
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| Fee Exempt / Waiver | N / N |
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