Confidence: Medium · Source: FCC ULS · As of 2026-10-24
K4-prefix vanity callsigns coming available
Vanity slots whose callsigns start with K4. Sorted by availability date — soonest first.
Showing 51– 100 of 484
| Callsign | State | Available | Last held | Last holder | Released by |
|---|---|---|---|---|---|
| K4AFU | FL | 2027-02-08in 107d | 2025-02-08 | Ulloa, Adrian F | Cancelled |
| K4DOU | SC | 2027-02-08in 107d | 2023-02-09 | HAYES SR, JOHN C | Expired |
| K4BQE | OH | 2027-02-10in 109d | 2023-02-11 | Wrenn, Tom | Expired |
| K4UAP | AL | 2027-02-11in 110d | 2025-02-11 | Hall, Halen L | Cancelled |
| K4CLD | GA | 2027-02-12in 111d | 2023-02-13 | DURPO JR, CHIP C | Expired |
| K4MMD | FL | 2027-02-13in 112d | 2023-02-14 | DURPO, MELANIE M | Expired |
| K4CLO | VA | 2027-02-14in 113d | 2023-02-15 | Olinger, Cheryl L | Expired |
| K4ECH | AZ | 2027-02-14in 113d | 2025-02-14 | Harkness, Eric C | Cancelled |
| K4ABT | VA | 2027-02-15in 114d | 2023-02-16 | ROGERS SR, GLYNN E | Expired |
| K4HIX | TX | 2027-02-15in 114d | 2023-02-16 | PEEL, DAVID L | Expired |
| K4MOL | TN | 2027-02-15in 114d | 2023-02-16 | FRANCIS, JOHN P | Expired |
| K4WOB | VA | 2027-02-15in 114d | 2023-02-16 | MULLINS, CARL V | Expired |
| K4GPD | FL | 2027-02-18in 117d | 2023-02-19 | BOLLIGER, JAMES A | Expired |
| K4ORB | NC | 2027-02-18in 117d | 2023-02-19 | Korb Sr, Robert D | Expired |
| K4TFW | NC | 2027-02-18in 117d | 2023-02-19 | WATTS, THOMAS F | Expired |
| K4TZR | TX | 2027-02-19in 118d | 2023-02-20 | Flori, Sheila R | Expired |
| K4SXX | NC | 2027-02-21in 120d | 2023-02-22 | FEATHERSTON, HOWARD S | Expired |
| K4DWG | AL | 2027-02-24in 123d | 2023-02-25 | SANDERS, JOHN F | Expired |
| K4LAY | FL | 2027-02-24in 123d | 2023-02-25 | SINGH, BOB H | Expired |
| K4FDX | GA | 2027-02-28in 127d | 2025-02-28 | BAILEY, GARY R | Cancelled |
| K4JLT | VA | 2027-02-28in 127d | 2025-02-28 | Thibodeau Sr, Joseph L | Cancelled |
| K4HFQ | AL | 2027-03-01in 128d | 2023-03-02 | LYEMANCE, HOMER D | Expired |
| K4CJG | GA | 2027-03-04in 131d | 2023-03-05 | Gould Jr, Curtis J | Expired |
| K4CIS | FL | 2027-03-07in 134d | 2023-03-08 | Arceneaux, John | Expired |
| K4URE | NC | 2027-03-08in 135d | 2023-03-09 | Uwharrie QRP Club | Expired |
| K4BGC | NC | 2027-03-10in 137d | 2023-03-11 | Conner Jr, Bobby G | Expired |
| K4KYK | NC | 2027-03-10in 137d | 2023-03-11 | KNIGHT, JAMES R | Expired |
| K4LCC | FL | 2027-03-11in 138d | 2023-03-12 | Barrick, Dann | Expired |
| K4SGF | GA | 2027-03-11in 138d | 2023-03-12 | FRIEDMAN, SAMUEL G | Expired |
| K4KNC | GA | 2027-03-15in 142d | 2023-03-16 | NEWTON, BERNARD L | Expired |
| K4UHM | AL | 2027-03-15in 142d | 2023-03-16 | GRIFFIN JR, JAMES T | Expired |
| K4DKR | VA | 2027-03-17in 144d | 2023-03-18 | Ramey, Dennis K | Expired |
| K4ANL | NH | 2027-03-18in 145d | 2025-03-18 | Skiff, Hunter R | Cancelled |
| K4LLR | KY | 2027-03-18in 145d | 2023-03-19 | RODAN SR, LAWRENCE L | Expired |
| K4NCR | GA | 2027-03-18in 145d | 2023-03-19 | NEWTON COUNTY RADIO CLUB | Expired |
| K4RSD | IN | 2027-03-21in 148d | 2025-03-21 | DEWITT, RANDALL S | Cancelled |
| K4KOK | IN | 2027-03-27in 154d | 2023-03-28 | KENNER, MANLEY L | Expired |
| K4BDN | NC | 2027-03-28in 155d | 2023-03-29 | Northcutt, Barry E | Expired |
| K4NXS | SC | 2027-03-29in 156d | 2025-03-29 | Bordenkircher, Tom | Cancelled |
| K4YAW | MS | 2027-03-29in 156d | 2023-03-30 | CHANCEY, ROBERT M | Expired |
| K4GDR | GA | 2027-04-04in 162d | 2025-04-04 | HURLEY JR, WILLIAM H | Cancelled |
| K4MT | NC | 2027-04-04in 162d | 2025-04-04 | HENDRICKS, GARY M | Cancelled |
| K4OXF | NC | 2027-04-08in 166d | 2023-04-09 | Howard II, Kelway L | Expired |
| K4SCH | NC | 2027-04-08in 166d | 2023-04-09 | SCHROPP II, LAWRENCE J | Expired |
| K4JEA | FL | 2027-04-10in 168d | 2023-04-11 | KICKLIGHTER II, OTTIS C | Expired |
| K4SON | FL | 2027-04-11in 169d | 2023-04-12 | NEELY, RICHARD D | Expired |
| K4BKS | FL | 2027-04-21in 179d | 2023-04-22 | MESSMER, GEORGE E | Expired |
| K4RSJ | FL | 2027-04-21in 179d | 2023-04-22 | JARRETT, RANDAL S | Expired |
| K4LFM | FL | 2027-04-22in 180d | 2023-04-23 | McDERMOTT, LESLIE F | Expired |
| K4MPK | NC | 2027-04-25in 183d | 2023-04-26 | Kaplan, Marc P | Expired |