Invalid Callsign Requests

Last updated Saturday, October 24, 2020 2:05:06 AM (Arizona)
Saturday, October 24, 2020 9:05:06 AM (UTC)

Applications

Invalid Callsigns

This page shows the FCC guidelines for calls which are not available for requesting on an FCC application followed by the invalid call signs which have been requested in the last month and the rule they are in violation of.

The following call signs are not available for assignment and therefore any request for call signs in the following categories are invalid and will be denied.

  1. KA2AA-KA9ZZ, KC4AAA-KC4AAF, KC4USA-KC4USZ, KG4AA-KG4ZZ, KC6AA-KC6ZZ, KL9KAA- KL9KHZ, KX6AA-KX6ZZ;
  2. Any call sign having the letters SOS or QRA-QUZ as the suffix;
  3. Any call sign having the letters AM-AZ as the prefix (these prefixes are assigned to other countries by the ITU);
  4. Any 2-by-3 format call sign having the letter X as the first letter of the suffix;
  5. Any 2-by-3 format call sign having the letters AF, KF, NF, or WF as the prefix and the letters EMA as the suffix (U.S Government FEMA stations);
  6. Any 2-by-3 format call sign having the letters AA-AL as the prefix;
  7. Any 2-by-3 format call sign having the letters NA-NZ as the prefix;
  8. Any 2-by-3 format call sign having the letters WC, WK, WM, WR, or WT as the prefix (Group X call signs);
  9. Any 2-by-3 format call sign having the letters KP, NP or WP as the prefix and the numeral 0, 6, 7, 8 or 9;
  10. Any 2-by-2 format call sign having the letters KP, NP or WP as the prefix and the numeral 0, 6, 7, 8 or 9;
  11. Any 2-by-1 format call sign having the letters KP, NP or WP as the prefix and the numeral 0, 6, 7, 8 or 9;
  12. Call signs having the single letter prefix (K, N or W), a single digit numeral 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and a single letter suffix are reserved for the special event call sign system.
Call SignRule Violation
 A1MICCall does not fall within a valid group as per FCC Guidelines
 A5BX Call does not fall within a valid group as per FCC Guidelines
ACHXCall sign is incorrectly formatted as per FCC Guidelines
AXHLCall sign is incorrectly formatted as per FCC Guidelines
AY4G  3.  Any call sign having the letters AM-AZ as the prefix (these prefixes are assigned to other countries by the ITU)
AY4M  3.  Any call sign having the letters AM-AZ as the prefix (these prefixes are assigned to other countries by the ITU)
AY4W  3.  Any call sign having the letters AM-AZ as the prefix (these prefixes are assigned to other countries by the ITU)
 C7SPCCall does not fall within a valid group as per FCC Guidelines
CHAPCall sign is incorrectly formatted as per FCC Guidelines
DIVYCall sign is incorrectly formatted as per FCC Guidelines
FC1BFDCall does not fall within a valid group as per FCC Guidelines
FC2BFDCall does not fall within a valid group as per FCC Guidelines
FC3BFDCall does not fall within a valid group as per FCC Guidelines
FC4BFDCall does not fall within a valid group as per FCC Guidelines
FC5BFDCall does not fall within a valid group as per FCC Guidelines
FC6BFDCall does not fall within a valid group as per FCC Guidelines
FC7BFDCall does not fall within a valid group as per FCC Guidelines
FC9BFDCall does not fall within a valid group as per FCC Guidelines
 H5LXBCall does not fall within a valid group as per FCC Guidelines
 H5SX Call does not fall within a valid group as per FCC Guidelines
HL5X  Call does not fall within a valid group as per FCC Guidelines
 J7JJSCall does not fall within a valid group as per FCC Guidelines
K21RMCall sign is incorrectly formatted as per FCC Guidelines
K7001Call sign is incorrectly formatted as per FCC Guidelines
K7007Call sign is incorrectly formatted as per FCC Guidelines
K7411Call sign is incorrectly formatted as per FCC Guidelines
K7911Call sign is incorrectly formatted as per FCC Guidelines
K7AZ1Call sign is incorrectly formatted as per FCC Guidelines
K7AZ2Call sign is incorrectly formatted as per FCC Guidelines
K7K7Call sign is incorrectly formatted as per FCC Guidelines
K7QC1Call sign is incorrectly formatted as per FCC Guidelines
KADAPECall sign is incorrectly formatted as per FCC Guidelines
KAPE13Call sign is incorrectly formatted as per FCC Guidelines
KAPEADCall sign is incorrectly formatted as per FCC Guidelines
KAPEGSCall sign is incorrectly formatted as per FCC Guidelines
KAPETLCall sign is incorrectly formatted as per FCC Guidelines
KBRSSGCall sign is incorrectly formatted as per FCC Guidelines
KC4USA1.  KA2AA-KA9ZZ, KC4AAA-KC4AAF, KC4USA-KC4USZ, KG4AA-KG4ZZ, KC6AA-KC6ZZ, KL9KAA- KL9KHZ, KX6AA-KX6ZZ
KG4GR 1.  KA2AA-KA9ZZ, KC4AAA-KC4AAF, KC4USA-KC4USZ, KG4AA-KG4ZZ, KC6AA-KC6ZZ, KL9KAA- KL9KHZ, KX6AA-KX6ZZ
KG4SS 1.  KA2AA-KA9ZZ, KC4AAA-KC4AAF, KC4USA-KC4USZ, KG4AA-KG4ZZ, KC6AA-KC6ZZ, KL9KAA- KL9KHZ, KX6AA-KX6ZZ
KIMCYCall sign is incorrectly formatted as per FCC Guidelines
KOV1DCall sign is incorrectly formatted as per FCC Guidelines
KRMACall sign is incorrectly formatted as per FCC Guidelines
KURSSGCall sign is incorrectly formatted as per FCC Guidelines
KXBSHCall sign is incorrectly formatted as per FCC Guidelines
KXHBSCall sign is incorrectly formatted as per FCC Guidelines
KZAHCall sign is incorrectly formatted as per FCC Guidelines
LINXCall sign is incorrectly formatted as per FCC Guidelines
LT1BFDCall does not fall within a valid group as per FCC Guidelines
LT2BFDCall does not fall within a valid group as per FCC Guidelines
LT3BFDCall does not fall within a valid group as per FCC Guidelines
LT4BFDCall does not fall within a valid group as per FCC Guidelines
LT5BFDCall does not fall within a valid group as per FCC Guidelines
LT6BFDCall does not fall within a valid group as per FCC Guidelines
LT7BFDCall does not fall within a valid group as per FCC Guidelines
LT9BFDCall does not fall within a valid group as per FCC Guidelines
 M5MTECall does not fall within a valid group as per FCC Guidelines
MY4CGSCall does not fall within a valid group as per FCC Guidelines
MY4CGZCall does not fall within a valid group as per FCC Guidelines
N21RMCall sign is incorrectly formatted as per FCC Guidelines
NA4CVM7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NA4ISA7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NA4MAP7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NB4MRP7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NB4SIX7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NB4WTF7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NB7BJB7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
ND7MAC7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
ND7MCC7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NM2RKA7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NM5RKA7.  Any 2-by-3 format call sign having the letters NA-NZ as the prefix
NRMACall sign is incorrectly formatted as per FCC Guidelines
 P7UFECall does not fall within a valid group as per FCC Guidelines
RM21ACall sign is incorrectly formatted as per FCC Guidelines
 S7DPYCall does not fall within a valid group as per FCC Guidelines
USNA74Call sign is incorrectly formatted as per FCC Guidelines
W21ACall sign is incorrectly formatted as per FCC Guidelines
W21RMCall sign is incorrectly formatted as per FCC Guidelines
WADAPECall sign is incorrectly formatted as per FCC Guidelines
WAPE13Call sign is incorrectly formatted as per FCC Guidelines
WAPEADCall sign is incorrectly formatted as per FCC Guidelines
WAPEGSCall sign is incorrectly formatted as per FCC Guidelines
WAPETLCall sign is incorrectly formatted as per FCC Guidelines
WP9TA 10.  Any 2-by-2 format call sign having the letters KP, NP or WP as the prefix and the numeral 0, 6, 7, 8 or 9
WRMACall sign is incorrectly formatted as per FCC Guidelines
WT4SAB8.  Any 2-by-3 format call sign having the letters WC, WK, WM, WR, or WT as the prefix (Group X call signs)
WT7AGI8.  Any 2-by-3 format call sign having the letters WC, WK, WM, WR, or WT as the prefix (Group X call signs)
ZAXHCall sign is incorrectly formatted as per FCC Guidelines
ZK7BSHCall does not fall within a valid group as per FCC Guidelines