| Prefixes | # | Cont. | ID | Country | Prefixes |
|---|
| 1 | EU | UA | European Russia | 51 | 52.6 | R1 R2 R3 R4 R7 RA1 RA3 RA4 RA6 RA7 RC4 RD3 RF4 RK1 RK3 RK4 RK6 RM2 RM3 RM4 RN1 RN3 RN4 RN6 RN7 RO2 RO5 RO6 RT1 RT3 RT4 RT6 RU3 RU4 RV3 RW3 RW4 RW6 RW7 RX3 RX4 RZ3 RZ4 U3 UA1 UA3 UA4 UA6 UA7 UC7 UD3 | | 2 | EU | UA2 | Kaliningrad | 2 | 2.1 | RA2 UA2 | | 3 | AS | UA9 | Asiatic Russia | 35 | 36.1 | R0 R8 R9 RA0 RA9 RC8 RC9 RF9 RG8 RG9 RJ9 RK0 RK8 RK9 RL9 RM9 RN9 RO9 RQ9 RT8 RT9 RU0 RU9 RV9 RW0 RW9 RX9 RZ0 RZ9 UA0 UA9 UB0 UD8 UI8 UI9 | | 4 | AS | UN | Kazakhstan | 3 | 3.1 | UN6 UN7 UN9 | | 5 | EU | UR | Ukraine | 5 | 5.2 | US0 UU6 UU7 UW1 UW2 | | 6 | EU | YL | Latvia | 1 | 1.0 | YL3 |
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