| # | Cont. | ID | Country | Prefixes |
|---|
| 1 | EU | 4O | Montenegro | 1 | 0.4 | 4O3 |
| 2 | EU | 9A | Croatia | 5 | 2.2 | 9A1 9A3 9A5 9A7 9A8 |
| 3 | EU | CT | Portugal | 1 | 0.4 | CR6 |
| 4 | EU | DL | Fed. Rep. of Germany | 24 | 10.7 | DD2 DD5 DF3 DF9 DG7 DH0 DJ1 DJ4 DJ5 DJ6 DJ8 DK1 DK4 DK5 DK6 DK9 DL0 DL1 DL4 DL5 DL6 DL8 DP4 DQ0 |
| 5 | EU | E7 | Bosnia-Herzegovina | 4 | 1.8 | E7 E70 E71 E77 |
| 6 | EU | EA | Spain | 6 | 2.7 | EA1 EA2 EA3 EA4 EA5 EA7 |
| 7 | EU | ER | Moldova | 1 | 0.4 | ER6 |
| 8 | EU | ES | Estonia | 1 | 0.4 | ES5 |
| 9 | EU | EU | Belarus | 6 | 2.7 | EU1 EU2 EU6 EW2 EW6 EW8 |
| 10 | EU | F | France | 4 | 1.8 | F0 F5 F6 F8 |
| 11 | EU | G | England | 3 | 1.3 | G3 G4 GO3 |
| 12 | EU | GI | Northern Ireland | 1 | 0.4 | GI4 |
| 13 | EU | GJ | Jersey | 1 | 0.4 | MJ0 |
| 14 | EU | GM | Scotland | 1 | 0.4 | GM4 |
| 15 | EU | HA | Hungary | 7 | 3.1 | HA1 HA3 HA6 HA7 HA8 HG6 HG7 |
| 16 | EU | HB | Switzerland | 1 | 0.4 | HB9 |
| 17 | EU | I | Italy | 11 | 4.9 | I2 I4 IK2 IK3 IK4 IK8 IN3 IQ1 IQ2 IZ4 IZ8 |
| 18 | EU | *IT9 | Sicily | 1 | 0.4 | IT9 |
| 19 | EU | LA | Norway | 2 | 0.9 | LA6 LB1 |
| 20 | EU | LY | Lithuania | 6 | 2.7 | LY1 LY2 LY3 LY4 LY5 LY6 |
| 21 | EU | LZ | Bulgaria | 8 | 3.6 | LZ0 LZ1 LZ2 LZ3 LZ4 LZ5 LZ8 LZ9 |
| 22 | EU | OE | Austria | 2 | 0.9 | OE3 OE8 |
| 23 | EU | OH | Finland | 5 | 2.2 | OG6 OH1 OH2 OH5 OH6 |
| 24 | EU | OK | Czech Republic | 7 | 3.1 | OK1 OK2 OK5 OK6 OK7 OL5 OL8 |
| 25 | EU | OM | Slovak Republic | 1 | 0.4 | OM5 |
| 26 | EU | ON | Belgium | 2 | 0.9 | OP4 OQ5 |
| 27 | EU | OZ | Denmark | 3 | 1.3 | OU2 OZ1 OZ4 |
| 28 | EU | PA | Netherlands | 5 | 2.2 | PA0 PA2 PA3 PA5 PI4 |
| 29 | EU | S5 | Slovenia | 8 | 3.6 | S50 S51 S52 S53 S54 S57 S58 S59 |
| 30 | EU | SM | Sweden | 3 | 1.3 | SM2 SM3 SM6 |
| 31 | EU | SP | Poland | 7 | 3.1 | 3Z5 SN7 SO2 SP1 SP2 SP4 SP7 |
| 32 | EU | SV | Greece | 1 | 0.4 | SV1 |
| 33 | EU | UA | European Russia | 37 | 16.5 | R1 R3 R7 R8 RA1 RA3 RA6 RD3 RL2 RL3 RM2 RM3 RM5 RM6 RN3 RN6 RN7 RO3 RQ7 RT2 RU3 RU4 RV3 RV6 RW1 RW3 RW4 RX3 RX4 RZ3 RZ5 RZ6 UA1 UA3 UA4 UA6 UC7 |
| 34 | EU | UA2 | Kaliningrad | 1 | 0.4 | UA2 |
| 35 | AS | UN | Kazakhstan | 1 | 0.4 | UN3 |
| 36 | EU | UR | Ukraine | 23 | 10.3 | EN1 UR5 UR7 US2 UT0 UT1 UT3 UT4 UT5 UT7 UT8 UU8 UV5 UW1 UW2 UW3 UW4 UW5 UX1 UX3 UY4 UY5 UY6 |
| 37 | EU | YL | Latvia | 5 | 2.2 | YL2 YL3 YL5 YL8 YL9 |
| 38 | EU | YO | Romania | 7 | 3.1 | YO2 YO4 YO5 YO9 YP8 YQ6 YR1 |
| 39 | EU | YU | Serbia | 8 | 3.6 | YT0 YT1 YT2 YT3 YT5 YT8 YU1 YU2 |
| 40 | EU | Z3 | North Macedonia | 3 | 1.3 | Z35 Z37 Z39 |