| Prefixes | # | Cont. | ID | Country | Prefixes |
|---|
| 1 | EU | DL | Fed. Rep. of Germany | 2 | 3.6 | DL5 DL8 | | 2 | EU | EI | Ireland | 1 | 1.8 | EI7 | | 3 | EU | F | France | 1 | 1.8 | F6 | | 4 | EU | HA | Hungary | 1 | 1.8 | HA9 | | 5 | EU | I | Italy | 1 | 1.8 | I8 | | 6 | NA | K | United States | 36 | 64.3 | AA2 K1 K2 K4 K6 K9 KC4 KD8 KG5 KJ9 KK4 KU7 N0 N3 N4 N5 N9 NA5 NA8 NN4 NN6 NT6 NW0 NW2 W0 W1 W2 W3 W4 W6 W7 W8 W9 WB5 WB8 WJ9 | | 7 | EU | LY | Lithuania | 1 | 1.8 | LY5 | | 8 | EU | OH | Finland | 1 | 1.8 | OH2 | | 9 | EU | PA | Netherlands | 1 | 1.8 | PA3 | | 10 | EU | SM | Sweden | 4 | 7.1 | SI5 SM4 SM5 SM6 | | 11 | EU | TF | Iceland | 1 | 1.8 | TF3 | | 12 | EU | UR | Ukraine | 1 | 1.8 | UR5 | | 13 | NA | VE | Canada | 4 | 7.1 | VA2 VE2 VE3 VE5 | | 14 | OC | ZL | New Zealand | 1 | 1.8 | ZL1 |
|