One-letter suffix
402
the shortest callsigns
Palindromes
92
reads the same backwards
Triple letters
104
AAA · ZZZ · WWW …
Suffix = prefix
103
DL1DL · DO2DO …
The longest suffixes: six and seven characters
Special callsigns may carry up to seven characters in the suffix — ELEFANT, BWACH, SCHLEI, TESLA. More on the special stations page.
DL100BWACH DL6ELEFANT DL90SCHLEI DR170TESLA DA100LENZ DF50IPARC DK50K32MR DL35VWMST DL40EUDXF DL50IPARC DL70ASTRO DL70ESSEN
That’s all 12 — the complete list, nothing left out.
One notch shorter: five characters
Right below the very longest suffixes: special callsigns with exactly five characters in the suffix, e.g. SCOUT, CRACY, SEVEN.
DB1976AD DB26YLBB DB70DLRS DK60WEPO DL0SCOUT DL26ENTE DL26MAUS DL750RTG DL80BOCH DM0CRACY DP6SEVEN DQ30GDXF
That’s all 12 — the complete list, nothing left out.
And one notch shorter still: four characters
Special callsigns with exactly four characters in the suffix — mostly club or event abbreviations like BBQ, RIG, NRW.
DA100LH DA100SR DA100TV DA125RH DA50HEB DB100FT DF40ABF DF60WAT DK100LH DK70BIN DK80NDS DL100LH DL100SR DL100TV DL26BBQ DL40RIG DL50DRI DL50OHM DL50SOL DL70FIS DL70ROE DL75WAU DL75WOB DL80NRW DM100SR DP44WCA DP75BAC DP75HSC DQ80BYV DR100SR DR800WE
That’s all 31 — the complete list, nothing left out.
Palindromes
Callsigns that read the same backwards. Almost every prefix-digit combination has exactly one — DL1LD, DK5KD, DO7OD.
DA1AD DA2AD DA6AD DB0BD DB1BD DB2BD DB3BD DB4BD DB5BD DB6BD DB8BD DC0CD DC1CD DC3CD DC4CD DC7CD DC8CD DD0DD DD1DD DD2DD DD3DD DD4DD DD5DD DD7DD DD8DD DD9DD DF0FD DF1FD DF5FD DF6FD DF7FD DF8FD DF9FD DG1GD DG2GD DG7GD DG9GD DH0HD DH1HD DH8HD DJ1JD DJ3JD DJ5JD DJ6JD DJ7JD DJ8JD DJ9JD DK0KD DK1KD DK2KD DK3KD DK4KD DK5KD DK6KD DK7KD DK8KD DK9KD DL0LD DL1LD DL2LD DL3LD DL4LD DL5LD DL6LD DL7LD DL8LD DL9LD DM1MD DM2MD DM3MD DM4MD DM5MD DM6MD DM7MD DM8MD DM9MD DN1ND DN2ND DN3ND DN4ND DN5ND DN6ND DN8ND DN9ND DO1OD DO2OD DO3OD DO4OD DO5OD DO6OD DO7OD DO8OD
That’s all 92 — the complete list, nothing left out.
Triple letters
AAA is the classic — but there are also ZZZ, WWW, HHH and a lonely NNN.
DA0CCC DB0BBB DB0HHH DB0WWW DB2AAA DB3AAA DC1NNN DC3AAA DC8CCC DD3AAA DF0AAA DF0CCC DF0HHH DG1BBB DG3FFF DG4BBB DG4FFF DG5AAA DG5FFF DG6FFF DG7AAA DG7BBB DG7FFF DG8AAA DG9BBB DH1AAA DH1BBB DH2AAA DH3AAA DH4AAA DH6AAA DH8AAA DH9AAA DJ0AAA DJ9ZZZ DK0CCC DL0AAA DL0CCC DL0FFF DL0PPP DL0WWW DL1AAA DL1EEE DL1HHH DL1LLL DL2AAA DL2GGG DL2HHH DL3AAA DL3BBB DL4AAA DL4BBB DL4CCC DL4EEE DL4LLL DL5AAA DL6AAA DL6MMM DL7AAA DL7WWW DL8AAA DL9AAA DL9BBB DM2OOO DN0CCC DN1AAA DN1CCC DN1OOO DN1ZZZ DN2AAA DN2CCC DN2OOO DN3CCC DN3EEE DN3OOO DN4CCC DN4ZZZ DN5AAA DN6CCC DN6ZZZ DN7CCC DN8CCC DN9AAA DN9CCC DN9DDD DN9EEE DN9WWW DN9ZZZ DO0AAA DO1AAA DO1CCC DO1GGG DO1HHH DO1LLL DO2AAA DO2WWW DO3CCC DO4GGG DO7WWW DO7ZZZ DO8MMM DO8OOO DO9LLL DO9ZZZ
That’s all 104 — the complete list, nothing left out.
Suffix = prefix
Twice is nice: DA1DA, DC1DC, DL9DL.
DA0DA DA1DA DA2DA DA6DA DA7DA DB0DB DB1DB DB3DB DB4DB DB5DB DB7DB DB8DB DB9DB DC0DC DC1DC DC2DC DC3DC DC4DC DC6DC DC8DC DC9DC DD0DD DD1DD DD2DD DD3DD DD4DD DD5DD DD7DD DD8DD DD9DD DF0DF DF1DF DF3DF DF4DF DF5DF DF6DF DF7DF DG1DG DG2DG DG3DG DG4DG DG5DG DG6DG DG7DG DG8DG DG9DG DH1DH DH2DH DH4DH DH5DH DH6DH DH7DH DH8DH DH9DH DJ0DJ DJ3DJ DJ4DJ DJ6DJ DJ9DJ DK0DK DK1DK DK2DK DK3DK DK5DK DK6DK DK7DK DK8DK DK9DK DL0DL DL1DL DL2DL DL3DL DL4DL DL5DL DL6DL DL7DL DL8DL DL9DL DM0DM DM1DM DM2DM DM3DM DM4DM DM5DM DM6DM DM7DM DM8DM DN1DN DN2DN DN4DN DN5DN DN6DN DN7DN DN9DN DO1DO DO2DO DO3DO DO4DO DO5DO DO6DO DO7DO DO8DO DO9DO
That’s all 103 — the complete list, nothing left out.
Alphabet runs
ABC, DEF, XYZ — suffixes nobody forgets.
DB0ABC DC1ABC DF1XYZ DG1ABC DG1XYZ DG2ABC DG9ABC DH1ABC DH5ABC DJ3ABC DK1XYZ DK5ABC DK6ABC DL0DEF DL1ABC DL1XYZ DL2ABC DL3ABC DL4ABC DL5ABC DL6ABC DL7ABC DL8ABC DL8DEF DL9ABC DL9XYZ DM1ABC DN0DEF DN1ABC DN3ABC DN4ABC DN5ABC DN6ABC DN7ABC DN8ABC DN9ABC DO1ABC DO1XYZ DO2ABC DO2XYZ DO4ABC DO5ABC DO6ABC DO7ABC DO8ABC DO8XYZ DO9ABC
That’s all 47 — the complete list, nothing left out.
Ham vocabulary in the suffix
DX, CQ, CW, HAM, YL, OHM, MHZ … How often does ham jargon hide in a callsign? Counted across all prefixes.
DX 102
DA0DX DA1DX DA2DX DA6DX DB0DX DB1DX DB4DX DB6DX DB7DX DB8DX DC0DX DC1DX DC3DX DC4DX DC6DX DC7DX DC8DX DD0DX DD1DX DD2DX DD3DX DD4DX DD5DX DD6DX DD8DX DD9DX DF0DX DF1DX DF2DX DF3DX DF4DX DF5DX DF6DX DF7DX DF8DX DF9DX DG0DX DG2DX DG3DX DG4DX DG5DX DG6DX DG7DX DH0DX DH1DX DH3DX DH5DX DH8DX DH9DX DJ0DX DJ1DX DJ2DX DJ3DX DJ4DX DJ5DX DJ6DX DJ8DX DK0DX DK1DX DK2DX DK3DX DK4DX DK5DX DK6DX DK7DX DK8DX DK9DX DL0DX DL1DX DL2DX DL3DX DL4DX DL5DX DL6DX DL7DX DL8DX DL9DX DM1DX DM2DX DM4DX DM5DX DM6DX DM7DX DM9DX DN0DX DN1DX DN2DX DN3DX DN4DX DN5DX DN6DX DN7DX DN8DX DN9DX DO1DX DO2DX DO3DX DO4DX DO5DX DO6DX DO7DX DO8DX
KW 93
DB0KW DB1KW DB2KW DB3KW DB4KW DB5KW DB6KW DB7KW DB9KW DC0KW DC1KW DC2KW DC3KW DC5KW DC6KW DC7KW DC8KW DD3KW DD5KW DD6KW DD7KW DD8KW DD9KW DF1KW DF2KW DF3KW DF4KW DF5KW DF6KW DF7KW DF8KW DF9KW DG0KW DG1KW DG2KW DG3KW DG8KW DG9KW DH1KW DH2KW DH3KW DH4KW DH5KW DH6KW DJ0KW DJ1KW DJ2KW DJ3KW DJ4KW DJ5KW DJ6KW DJ7KW DJ8KW DJ9KW DK1KW DK3KW DK4KW DK6KW DK7KW DK8KW DK9KW DL0KW DL1KW DL2KW DL3KW DL4KW DL5KW DL6KW DL7KW DL8KW DL9KW DM1KW DM2KW DM3KW DM4KW DM5KW DM6KW DM8KW DM9KW DN2KW DN3KW DN4KW DN5KW DN6KW DN7KW DN9KW DO1KW DO2KW DO4KW DO5KW DO6KW DO7KW DO8KW
CW 92
DA0CW DA2CW DB0CW DB1CW DB2CW DB4CW DB5CW DB7CW DC0CW DC1CW DC2CW DC3CW DC4CW DC5CW DC7CW DC9CW DD0CW DD1CW DD2CW DD3CW DD4CW DD6CW DD7CW DF0CW DF2CW DF4CW DF5CW DF6CW DF7CW DF8CW DF9CW DG0CW DG1CW DG5CW DH1CW DH3CW DH4CW DH5CW DH7CW DJ1CW DJ2CW DJ3CW DJ4CW DJ5CW DJ6CW DJ7CW DJ9CW DK0CW DK1CW DK2CW DK3CW DK4CW DK5CW DK6CW DK7CW DK8CW DK9CW DL0CW DL1CW DL2CW DL3CW DL4CW DL5CW DL6CW DL7CW DL8CW DL9CW DM0CW DM1CW DM2CW DM3CW DM4CW DM5CW DM7CW DN1CW DN2CW DN3CW DN4CW DN5CW DN6CW DN7CW DN8CW DN9CW DO1CW DO2CW DO3CW DO4CW DO5CW DO6CW DO7CW DO8CW DO9CW
FM 87
DA6FM DB2FM DB3FM DB4FM DB5FM DB6FM DB7FM DB9FM DC1FM DC2FM DC3FM DC4FM DC7FM DD0FM DD1FM DD2FM DD5FM DD6FM DD7FM DD9FM DF0FM DF1FM DF2FM DF3FM DF4FM DF5FM DF6FM DF7FM DG1FM DG2FM DG4FM DG5FM DG6FM DG8FM DH1FM DH2FM DH3FM DH5FM DH7FM DJ0FM DJ2FM DJ3FM DJ4FM DJ5FM DJ7FM DJ8FM DJ9FM DK0FM DK1FM DK2FM DK3FM DK4FM DK5FM DK6FM DK7FM DK9FM DL0FM DL1FM DL2FM DL3FM DL4FM DL5FM DL6FM DL7FM DL8FM DL9FM DM1FM DM4FM DM5FM DM9FM DN1FM DN2FM DN3FM DN4FM DN5FM DN6FM DN8FM DN9FM DO1FM DO2FM DO3FM DO4FM DO5FM DO6FM DO7FM DO8FM DO9FM
AM 87
DA1AM DA6AM DB0AM DB1AM DB2AM DB3AM DB5AM DB6AM DB8AM DC1AM DC2AM DC3AM DC4AM DC6AM DC7AM DC9AM DD0AM DD1AM DD2AM DD4AM DD5AM DD6AM DD7AM DF0AM DF1AM DF2AM DF3AM DF5AM DF6AM DF7AM DF8AM DF9AM DG0AM DG1AM DG4AM DG6AM DG7AM DG8AM DG9AM DH1AM DH8AM DH9AM DJ0AM DJ1AM DJ2AM DJ3AM DJ5AM DJ6AM DJ9AM DK0AM DK1AM DK2AM DK3AM DK4AM DK5AM DK7AM DK8AM DK9AM DL0AM DL1AM DL2AM DL3AM DL4AM DL5AM DL6AM DL7AM DL8AM DL9AM DM1AM DM2AM DM8AM DN1AM DN2AM DN3AM DN4AM DN5AM DN7AM DN8AM DN9AM DO1AM DO2AM DO3AM DO4AM DO5AM DO6AM DO7AM DO8AM
DL 78
DA1DL DA6DL DB2DL DB5DL DB7DL DC0DL DC1DL DC2DL DC3DL DC5DL DC6DL DC7DL DC9DL DD0DL DD1DL DD2DL DD4DL DD5DL DD6DL DD7DL DD8DL DF1DL DF2DL DF3DL DF4DL DF5DL DF8DL DF9DL DG0DL DG1DL DG5DL DG6DL DG7DL DG9DL DH0DL DH1DL DH4DL DH8DL DJ2DL DJ4DL DJ6DL DK0DL DK1DL DK2DL DK3DL DK5DL DK6DL DK9DL DL0DL DL1DL DL2DL DL3DL DL4DL DL5DL DL6DL DL7DL DL8DL DL9DL DM2DL DM3DL DM4DL DM6DL DN1DL DN2DL DN3DL DN4DL DN5DL DN6DL DN9DL DO1DL DO2DL DO3DL DO4DL DO5DL DO6DL DO7DL DO8DL DO9DL
DE 70
DA6DE DB0DE DB1DE DB2DE DB3DE DB4DE DB5DE DB7DE DC0DE DC1DE DC2DE DC7DE DC8DE DC9DE DD2DE DD4DE DD5DE DD6DE DD7DE DD8DE DD9DE DF0DE DF4DE DF5DE DF6DE DF8DE DG0DE DG1DE DG6DE DG7DE DG8DE DH1DE DH4DE DJ0DE DJ1DE DJ3DE DJ9DE DK1DE DK3DE DK4DE DK5DE DK7DE DK8DE DK9DE DL0DE DL1DE DL2DE DL3DE DL4DE DL5DE DL6DE DL7DE DL9DE DM1DE DM2DE DN1DE DN2DE DN3DE DN4DE DN5DE DN6DE DN9DE DO1DE DO2DE DO3DE DO4DE DO5DE DO6DE DO7DE DO8DE
GL 69
DB0GL DB1GL DB2GL DB4GL DB5GL DB8GL DC0GL DC2GL DC3GL DC4GL DC5GL DC8GL DD0GL DD1GL DD2GL DD3GL DD4GL DD5GL DD7GL DD8GL DF1GL DF3GL DF4GL DF6GL DF7GL DF8GL DG0GL DG1GL DG2GL DG3GL DG8GL DH1GL DH2GL DH7GL DJ1GL DJ6GL DJ7GL DJ8GL DK0GL DK1GL DK2GL DK3GL DK5GL DK6GL DK8GL DK9GL DL0GL DL2GL DL3GL DL4GL DL5GL DL6GL DL7GL DL8GL DM1GL DM2GL DM7GL DN1GL DN2GL DN3GL DN4GL DN5GL DN6GL DN9GL DO1GL DO2GL DO3GL DO5GL DO7GL
OM 65
DA1OM DB0OM DB1OM DB2OM DB3OM DB4OM DB7OM DB8OM DB9OM DC1OM DD0OM DD1OM DD2OM DD4OM DD6OM DD8OM DD9OM DF0OM DF2OM DF4OM DF5OM DF6OM DF9OM DG1OM DG2OM DG3OM DG4OM DG6OM DG8OM DG9OM DH1OM DH2OM DH3OM DH7OM DJ0OM DJ1OM DJ3OM DJ7OM DK0OM DK1OM DK3OM DK6OM DK7OM DK8OM DL1OM DL2OM DL3OM DL5OM DL7OM DL9OM DM2OM DN1OM DN2OM DN3OM DN4OM DN5OM DN6OM DN9OM DO1OM DO3OM DO4OM DO5OM DO6OM DO7OM DO8OM
YL 64
DA0YL DA6YL DB1YL DB3YL DB5YL DC0YL DC1YL DC4YL DC6YL DC7YL DD8YL DF0YL DF1YL DF6YL DF7YL DF9YL DG0YL DG1YL DG5YL DH1YL DH2YL DH8YL DJ1YL DJ2YL DJ5YL DJ8YL DJ9YL DK0YL DK1YL DK2YL DK3YL DK4YL DK5YL DK7YL DK9YL DL0YL DL1YL DL2YL DL3YL DL4YL DL5YL DL7YL DL8YL DL9YL DM1YL DM2YL DM3YL DM9YL DN1YL DN2YL DN3YL DN4YL DN5YL DN6YL DN8YL DO1YL DO2YL DO3YL DO4YL DO5YL DO6YL DO7YL DO8YL DO9YL
LW 56
DA6LW DB3LW DB4LW DB9LW DC2LW DC3LW DC4LW DC5LW DC6LW DC9LW DD1LW DD2LW DD6LW DD7LW DD8LW DF2LW DF3LW DF5LW DF6LW DF7LW DF8LW DF9LW DG2LW DG4LW DG5LW DG6LW DG8LW DH3LW DJ3LW DJ4LW DJ6LW DJ8LW DK1LW DK5LW DK6LW DK9LW DL0LW DL1LW DL2LW DL3LW DL4LW DL5LW DL6LW DL7LW DL8LW DN1LW DN2LW DN3LW DN7LW DN9LW DO1LW DO2LW DO4LW DO6LW DO8LW DO9LW
TU 50
HZ 47
CQ 44
HAM 34
SAT 26
UKW 16
ANT 15
SHF 15
SSB 14
The shortest: one letter
Callsigns with a single letter after the digit are coveted — contest stations love them. By prefix:
Show all 402
DA0A DA0B DA0C DA0D DA0E DA0L DA0M DA0N DA0O DA0R DA0T DA0W DA0Y DA1A DA1D DA1E DA1R DA1T DA1X DA2A DA2B DA2C DA2D DA2E DA2K DA2M DA2N DA2R DA2T DA2X DA3A DA3C DA3D DA3M DA3R DA3W DA3X DA6A DA6C DA7C DA7F DA7T DA7W DA9A DB0P DB7A DC2O DC2W DC3E DC4A DC6K DC6O DD0D DD0Q DD1D DD4U DD5D DD5M DD5T DD5Y DD8D DD8E DF0A DF0F DF0G DF0H DF0L DF0M DF0N DF0R DF0S DF0T DF0W DF0X DF1S DF2F DF4F DF4T DF5A DF5M DF7A DF7C DF8V DG1E DG3T DG4O DG7N DG8G DG8M DH0F DH4M DJ0A DJ7M DJ7R DK0A DK0B DK0F DK0G DK0K DK0L DK0M DK0N DK0R DK0V DK0Z DK1A DK1E DK1K DK1R DK1T DK1X DK2A DK2I DK2M DK2R DK3A DK3L DK3M DK3R DK3T DK3Y DK4M DK5A DK5T DK6M DK7C DK7M DK7P DK7R DK8K DL0A DL0C DL0D DL0E DL0F DL0H DL0I DL0K DL0L DL0M DL0R DL0T DL0U DL0W DL0X DL0Z DL1A DL1C DL1D DL1E DL1F DL1L DL1R DL1T DL1X DL2A DL2C DL2F DL2L DL2P DL2R DL2W DL2X DL3A DL3E DL3G DL3O DL3R DL3Y DL4A DL4L DL4M DL4U DL5A DL5C DL5D DL5E DL5L DL5M DL5R DL5T DL6A DL6M DL6T DL7A DL7C DL7D DL8A DL8R DL9A DL9W DM0E DM0G DM0K DM0R DM0Y DM0Z DM1A DM1I DM1M DM1T DM1W DM2A DM2C DM2D DM2I DM2M DM2W DM2X DM3A DM3C DM3D DM3F DM3G DM3K DM3M DM3W DM3X DM3Y DM4A DM4C DM4G DM4K DM4L DM4T DM4X DM5A DM5B DM5C DM5D DM5F DM5G DM5M DM5N DM5O DM5P DM5R DM5X DM5Z DM6G DM6M DM6V DM7A DM7C DM7D DM7K DM7T DM7W DM7X DM8T DN0T DO0H DP3E DP3P DP3U DP4B DP4D DP4E DP4G DP4K DP4L DP4M DP4X DP5A DP5G DP5L DP5N DP5P DP5R DP5X DP6A DP6C DP6E DP6K DP6M DP6P DP6R DP6T DP6Z DP7D DP7P DP7R DP7T DP9A DP9I DP9S DP9X DQ0M DQ0O DQ0R DQ0U DQ0Z DQ1A DQ1F DQ1L DQ1P DQ1V DQ1W DQ2A DQ2C DQ3F DQ3Q DQ4L DQ4T DQ4W DQ5E DQ5M DQ5R DQ5T DQ5X DQ6N DQ6Q DQ7A DQ7D DQ7W DQ7Y DQ8N DQ8Z DQ9L DQ9M DQ9Y DR0A DR0G DR0K DR0L DR0P DR0R DR0T DR0W DR0Y DR1A DR1E DR1F DR1G DR1H DR1K DR1R DR1S DR1T DR1V DR1W DR1X DR1Y DR2A DR2B DR2C DR2D DR2E DR2G DR2K DR2L DR2P DR2Q DR2T DR2X DR3A DR3I DR3K DR3W DR3X DR4A DR4G DR4M DR4S DR4W DR4X DR5C DR5E DR5I DR5K DR5M DR5N DR5O DR5R DR5T DR5W DR5X DR5Y DR5Z DR6J DR6K DR6R DR6T DR6W DR7A DR7B DR7C DR7I DR7K DR7M DR7Q DR7R DR7T DR7W DR7X DR8C DR8M DR9A DR9D DR9M DR9P DR9W
Most popular suffixes
Which letter combination appears most often across all prefixes and digits? Initials are popular — and DX, of course.
Favourite digit
The 1 wins by a wide margin — historically it was the first freely selectable digit. The 0 is reserved for club stations and repeaters.
The fullest two-letter blocks
Per prefix and digit there are 676 possible two-letter suffixes (AA–ZZ). Where is almost everything taken?
The DC1AS neighbourhood
The DC1A? block — 18 of 26 two-letter callsigns are assigned, plus 16 three-letter ones.
DC1AA DC1AB DC1AE DC1AF DC1AG DC1AH DC1AJ DC1AK DC1AM DC1AN DC1AO DC1AP DC1AR DC1AS DC1AT DC1AU DC1AW DC1AZ DC1ABC DC1ADR DC1AHA DC1AMA DC1AMM DC1AND DC1APE DC1ARA DC1ARB DC1ASE DC1ATA DC1AUD DC1AVA DC1AVL DC1AWD DC1AZX
That’s all 34 — the complete list, nothing left out.
All callsigns come from the public BNetzA list (as of 14 September 2026). Only callsigns are shown — no names, no addresses, no lookup.