| # | Cont. | ID | Country | Prefixes |
|---|
| 1 | EU | 4O | Montenegro | 1 | 0.3 | 4O3 |
| 2 | EU | 9A | Croatia | 5 | 1.5 | 9A0 9A1 9A2 9A5 9A9 |
| 3 | EU | CT | Portugal | 2 | 0.6 | CR6 CT1 |
| 4 | EU | CU | Azores | 1 | 0.3 | CR2 |
| 5 | EU | DL | Fed. Rep. of Germany | 52 | 16.1 | DA0 DA2 DA3 DD5 DF1 DF2 DF3 DF4 DF5 DF6 DF7 DF8 DF9 DG7 DJ0 DJ1 DJ3 DJ4 DJ5 DJ6 DJ8 DJ9 DK0 DK1 DK2 DK3 DK5 DK6 DK65 DK7 DK8 DK9 DL0 DL1 DL2 DL3 DL4 DL5 DL6 DL7 DL8 DL9 DM1 DM3 DM6 DM8 DO6 DP6 DP9 DQ2 DQ6 DQ7 |
| 6 | EU | E7 | Bosnia-Herzegovina | 3 | 0.9 | E70 E72 E74 |
| 7 | EU | EA | Spain | 9 | 2.8 | EA1 EA2 EA3 EA4 EA5 EA7 EC2 ED2 EF1 |
| 8 | EU | EA6 | Balearic Islands | 1 | 0.3 | EA6 |
| 9 | EU | EI | Ireland | 5 | 1.5 | EI1 EI3 EI5 EI6 EI7 |
| 10 | EU | ER | Moldova | 2 | 0.6 | ER1 ER3 |
| 11 | EU | ES | Estonia | 2 | 0.6 | ES5 ES7 |
| 12 | EU | EU | Belarus | 5 | 1.5 | EU1 EU5 EW1 EW2 EW8 |
| 13 | EU | F | France | 7 | 2.2 | F1 F3 F4 F5 F6 TM5 TM6 |
| 14 | EU | G | England | 11 | 3.4 | G0 G1 G3 G4 G5 G6 G8 M0 M3 M4 M6 |
| 15 | EU | GI | Northern Ireland | 1 | 0.3 | GI4 |
| 16 | EU | GJ | Jersey | 1 | 0.3 | MJ5 |
| 17 | EU | GM | Scotland | 3 | 0.9 | GM4 MM0 MM2 |
| 18 | EU | GW | Wales | 4 | 1.2 | GW0 GW3 GW4 GW7 |
| 19 | EU | HA | Hungary | 11 | 3.4 | HA0 HA2 HA3 HA5 HA6 HA7 HA8 HA9 HG1 HG7 HG8 |
| 20 | EU | HB | Switzerland | 1 | 0.3 | HB9 |
| 21 | SA | HK | Colombia | 1 | 0.3 | HK3 |
| 22 | EU | I | Italy | 17 | 5.3 | I0 I2 I3 I73 IK0 IK2 IK8 IN3 IO2 IR1 IR2 IR3 IR4 IV3 IZ2 IZ3 IZ4 |
| 23 | EU | IS | Sardinia | 1 | 0.3 | IS0 |
| 24 | EU | *IT9 | Sicily | 2 | 0.6 | II9 IT9 |
| 25 | OC | KH6 | Hawaii | 1 | 0.3 | KH6 |
| 26 | NA | KP4 | Puerto Rico | 1 | 0.3 | KP4 |
| 27 | EU | LA | Norway | 2 | 0.6 | LA2 LA9 |
| 28 | EU | LX | Luxembourg | 2 | 0.6 | LX1 LX7 |
| 29 | EU | LY | Lithuania | 5 | 1.5 | LY2 LY4 LY5 LY7 LY9 |
| 30 | EU | LZ | Bulgaria | 6 | 1.9 | LZ1 LZ2 LZ4 LZ7 LZ8 LZ9 |
| 31 | EU | OE | Austria | 6 | 1.9 | OE1 OE2 OE3 OE5 OE6 OE8 |
| 32 | EU | OH | Finland | 5 | 1.5 | OG1 OG6 OH2 OH5 OH6 |
| 33 | EU | OK | Czech Republic | 6 | 1.9 | OK1 OK2 OK4 OK7 OL1 OL5 |
| 34 | EU | OM | Slovak Republic | 7 | 2.2 | OM0 OM2 OM3 OM4 OM5 OM7 OM8 |
| 35 | EU | ON | Belgium | 9 | 2.8 | ON4 ON5 ON6 ON7 OQ5 OR2 OR3 OR5 OT6 |
| 36 | EU | OY | Faroe Islands | 1 | 0.3 | OY0 |
| 37 | EU | OZ | Denmark | 5 | 1.5 | OZ0 OZ1 OZ4 OZ7 OZ8 |
| 38 | EU | PA | Netherlands | 10 | 3.1 | PA0 PA1 PA2 PA3 PA5 PA7 PA9 PD9 PG2 PI4 |
| 39 | EU | S5 | Slovenia | 9 | 2.8 | S50 S51 S52 S53 S54 S55 S56 S57 S59 |
| 40 | EU | SM | Sweden | 9 | 2.8 | SD3 SE4 SG7 SI5 SJ2 SK3 SK6 SM0 SM5 |
| 41 | EU | SP | Poland | 14 | 4.3 | SN5 SN6 SN7 SO7 SP2 SP3 SP4 SP5 SP6 SP7 SP9 SQ2 SQ7 SQ9 |
| 42 | EU | SV | Greece | 2 | 0.6 | SV1 SW3 |
| 43 | EU | *TA1 | European Turkey | 1 | 0.3 | TA1 |
| 44 | EU | UA | European Russia | 25 | 7.7 | R3 R6 R7 RA3 RA7 RC5 RG5 RK2 RK3 RM5 RN3 RT4 RT5 RU5 RU6 RW1 RW4 RX6 RZ4 UA1 UA3 UA4 UA7 UC5 UI5 |
| 45 | EU | UA2 | Kaliningrad | 2 | 0.6 | RN2 UA2 |
| 46 | AS | UA9 | Asiatic Russia | 1 | 0.3 | RG0 |
| 47 | EU | UR | Ukraine | 23 | 7.1 | UR2 UR3 UR4 UR5 UR6 UR7 US0 US6 UT0 UT1 UT3 UT5 UT8 UV3 UV7 UW2 UW4 UW5 UW7 UX1 UX5 UY3 UY5 |
| 48 | EU | YL | Latvia | 3 | 0.9 | YL2 YL3 YL5 |
| 49 | EU | YO | Romania | 9 | 2.8 | YO2 YO4 YO5 YO6 YO7 YO8 YO9 YP5 YQ6 |
| 50 | EU | YU | Serbia | 10 | 3.1 | QRP0 YT1 YT2 YT5 YT7 YT8 YT9 YU1 YU2 YU9 |
| 51 | EU | Z3 | North Macedonia | 1 | 0.3 | Z35 |