IARU 100
Special event stations/callsigns from IARU societies celebrating the 100th anniversary of the International Amateur Radio Union at various times in April (not necessarily throughout the month) include:
3Z100IARU PZK Poland
4X100IARU IARC Israel 14-24 April
4Z100IARU IARC Israel 14-24 April
8A100IARU ORARI Indonesia
9A100IARU HRS Croatia
A9100IARU BARS Bahrain
AO100IARU URE Spain
AO1IARU URE Spain
AO2IARU URE Spain
AO3IARU URE Spain
AO4IARU URE Spain
AO5IARU URE Spain
AO6IARU URE Balearic Isls
AO7IARU URE Spain
AO8IARU URE Canary Isls
AO9IARU URE Ceuta & Melilla
CN100IARU ARRAM Morocco
CX100IARU RCU Uruguay
DA0IARU DARC Germany
E7100IARU ARABiH Bosnia- Herzegovina 1-30 April
ER100IARU ARM Moldova
GB0IARU RSGB United Kingdom
HA100A MRASZ Hungary
HA100B MRASZ Hungary
HA100C MRASZ Hungary
HA100E MRASZ Hungary
HA100I MRASZ Hungary
HA100IARU MRASZ Hungary
HA100L MRASZ Hungary
HA100N MRASZ Hungary
HA100O MRASZ Hungary
HA100R MRASZ Hungary
HA100T MRASZ Hungary
HA100Y MRASZ Hungary
HF100IARU PZK Poland
HG100IARU MRASZ Hungary
HL100IARU KARL Republic of Korea
HS100IARU RAST Thailand
LX100IARU RL Luxembourg
ON100A UBA Belgium
ON100I UBA Belgium
ON100R UBA Belgium
ON100U UBA Belgium
OO100A UBA Belgium
OO100I UBA Belgium
OO100R UBA Belgium
OO100U UBA Belgium
OP100A UBA Belgium
OP100I UBA Belgium
OP100R UBA Belgium
OP100U UBA Belgium
OQ0IARU UBA Belgium
OQ100A UBA Belgium
OQ100I UBA Belgium
OQ100R UBA Belgium
OQ100U UBA Belgium
OR0IARU UBA Belgium
OR100A UBA Belgium
OR100I UBA Belgium
OR100R UBA Belgium
OR100U UBA Belgium
OS100A UBA Belgium
OS100I UBA Belgium
OS100R UBA Belgium
OS100U UBA Belgium
OT100A UBA Belgium
OT100I UBA Belgium
OT100R UBA Belgium
OT100U UBA Belgium
OZ100IARU EDR Denmark
PA100IARU VERON Netherlands
S5100IARU ZRS Slovenia
SN100IARU PZK Poland
SO100IARU PZK Poland
SP100IARU PZK Poland
SZ100IARU RAAG Greece
TC100IARU TRAC Turkey
VI100IARU WIA Australia
VU1IARU ARSI India
Z3100IARU RSM North Macedonia
3Z100IARU PZK Poland
4X100IARU IARC Israel 14-24 April
4Z100IARU IARC Israel 14-24 April
8A100IARU ORARI Indonesia
9A100IARU HRS Croatia
A9100IARU BARS Bahrain
AO100IARU URE Spain
AO1IARU URE Spain
AO2IARU URE Spain
AO3IARU URE Spain
AO4IARU URE Spain
AO5IARU URE Spain
AO6IARU URE Balearic Isls
AO7IARU URE Spain
AO8IARU URE Canary Isls
AO9IARU URE Ceuta & Melilla
CN100IARU ARRAM Morocco
CX100IARU RCU Uruguay
DA0IARU DARC Germany
E7100IARU ARABiH Bosnia- Herzegovina 1-30 April
ER100IARU ARM Moldova
GB0IARU RSGB United Kingdom
HA100A MRASZ Hungary
HA100B MRASZ Hungary
HA100C MRASZ Hungary
HA100E MRASZ Hungary
HA100I MRASZ Hungary
HA100IARU MRASZ Hungary
HA100L MRASZ Hungary
HA100N MRASZ Hungary
HA100O MRASZ Hungary
HA100R MRASZ Hungary
HA100T MRASZ Hungary
HA100Y MRASZ Hungary
HF100IARU PZK Poland
HG100IARU MRASZ Hungary
HL100IARU KARL Republic of Korea
HS100IARU RAST Thailand
LX100IARU RL Luxembourg
ON100A UBA Belgium
ON100I UBA Belgium
ON100R UBA Belgium
ON100U UBA Belgium
OO100A UBA Belgium
OO100I UBA Belgium
OO100R UBA Belgium
OO100U UBA Belgium
OP100A UBA Belgium
OP100I UBA Belgium
OP100R UBA Belgium
OP100U UBA Belgium
OQ0IARU UBA Belgium
OQ100A UBA Belgium
OQ100I UBA Belgium
OQ100R UBA Belgium
OQ100U UBA Belgium
OR0IARU UBA Belgium
OR100A UBA Belgium
OR100I UBA Belgium
OR100R UBA Belgium
OR100U UBA Belgium
OS100A UBA Belgium
OS100I UBA Belgium
OS100R UBA Belgium
OS100U UBA Belgium
OT100A UBA Belgium
OT100I UBA Belgium
OT100R UBA Belgium
OT100U UBA Belgium
OZ100IARU EDR Denmark
PA100IARU VERON Netherlands
S5100IARU ZRS Slovenia
SN100IARU PZK Poland
SO100IARU PZK Poland
SP100IARU PZK Poland
SZ100IARU RAAG Greece
TC100IARU TRAC Turkey
VI100IARU WIA Australia
VU1IARU ARSI India
Z3100IARU RSM North Macedonia