uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KO4-prefix vanity callsigns coming available

Vanity slots whose callsigns start with KO4. Sorted by availability date — soonest first.

Customize filters All available

Showing 101– 150 of 180

CallsignStateAvailableLast heldLast holderReleased by
KO4BJPVA2027-08-19in 339d2025-08-19Harris III, Edward BCancelled
KO4GCHMA2027-08-19in 339d2025-08-19Cyr, AdamCancelled
KO4BZDTN2027-09-03in 354d2025-09-03Greer, James BCancelled
KO4PBUVA2027-09-09in 360d2025-09-09GOULDIN, JAMESCancelled
KO4DBCVA2027-09-16in 367d2025-09-16Thompson, Jeffrey LCancelled
KO4ZNFL2027-09-17in 368d2023-09-18MARTIN, WALTER IExpired
KO4JAXNC2027-09-26in 377d2025-09-26Dawson Jr, Carl RCancelled
KO4FGWGA2027-12-09in 451d2025-12-09Nelson, Jason WCancelled
KO4NKRVA2027-12-09in 451d2025-12-09Noell, RobertCancelled
KO4NMTAL2027-12-09in 451d2025-12-09Carroll, Michael GCancelled
KO4VVHKY2027-12-09in 451d2025-12-09FLACK, MICHAEL RCancelled
KO4WLOAL2027-12-09in 451d2025-12-09Cheplen, ConorCancelled
KO4ZNBKY2027-12-10in 452d2025-12-10SAYRE, JAMES SCancelled
KO4CLDAL2027-12-11in 453d2025-12-11Williams, Micah NCancelled
KO4YATFL2027-12-19in 461d2025-12-19McJunkin, Blake TCancelled
KO4MHMNC2027-12-30in 472d2025-12-30Manganaro, Paul ACancelled
KO4OEJFL2027-12-30in 472d2025-12-30Gonzalez, Ruben ACancelled
KO4RNTND2028-01-23in 496d2026-01-23Kleinholz, David ACancelled
KO4YMUGA2028-01-23in 496d2026-01-23Rabanus, Cory CCancelled
KO4VHI2028-02-07in 511d2026-02-07SHUR, KENNETH JCancelled
KO4SKLTX2028-02-10in 514d2026-02-10Armstrong, RebeccaCancelled
KO4MXVTN2028-02-13in 517d2026-02-13Alspaugh, RyanCancelled
KO4ZZVKY2028-02-13in 517d2026-02-13Hagan, Dennis ECancelled
KO4AULAL2028-02-18in 522d2026-02-18Johnston, Brian TCancelled
KO4YIGPA2028-02-18in 522d2026-02-18Shank Jr, Rowland WCancelled
KO4QMHAL2028-03-02in 535d2026-03-03Randau, John ECancelled
KO4AAFL2028-03-04in 537d2024-03-05MALKINSKI, MAXINE EExpired
KO4EAFL2028-03-04in 537d2024-03-05DILLON, MICHAEL GExpired
KO4JRPNC2028-03-04in 537d2024-03-05PAYNE III, JAMES RExpired
KO4XRCA2028-03-04in 537d2024-03-05SCHRECK, DAVID WExpired
KO4FWDTN2028-03-06in 539d2026-03-07Richards, Brian ACancelled
KO4SEHVA2028-03-06in 539d2026-03-07HALES, MARK DCancelled
KO4LLBVA2028-03-09in 542d2026-03-10Crispin, Aaron DCancelled
KO4KVTFL2028-03-11in 544d2026-03-12McMichael, RickCancelled
KO4VBXSC2028-03-12in 545d2026-03-13McLeod Health Radio Response TeamCancelled
KO4WOKVA2028-03-13in 546d2026-03-14Groccia, David SCancelled
KO4PHHNC2028-03-16in 549d2026-03-17FAGGART, MCRORIE DCancelled
KO4WDFCO2028-03-19in 552d2026-03-20TAYLOR, ROBERT LCancelled
KO4DOTTN2028-03-23in 556d2026-03-24BROGDEN, GARRETT OCancelled
KO4DTRAL2028-03-23in 556d2026-03-24Ball, Ken WCancelled
KO4PPRFL2028-03-23in 556d2026-03-24Gray, David ECancelled
KO4MJCTN2028-03-26in 559d2026-03-27Shoffner, John PCancelled
KO4CMKVA2028-03-30in 563d2026-03-31Mahoney, Robert CCancelled
KO4JTTGA2028-03-30in 563d2026-03-31Collins, James GCancelled
KO4MLIFL2028-03-30in 563d2026-03-31Moore, Jean-Paul ACancelled
KO4YFBTX2028-04-02in 566d2026-04-03Dodd, Nathan RCancelled
KO4DRNC2028-04-09in 573d2026-04-10Fleming, James KCancelled
KO4UUIGA2028-04-09in 573d2026-04-10SPINNEY, PARK SCancelled
KO4ZREFL2028-04-09in 573d2026-04-10WIESMAN II, RON WCancelled
KO4RCCVA2028-04-23in 587d2026-04-24Fawze, AymanCancelled