| Prefixes | # | Cont. | ID | Country | Prefixes |
|---|
| 1 | EU | HA | Hungary | 2 | 7.1 | HA1 HG1 | | 2 | EU | I | Italy | 2 | 7.1 | IK8 IZ4 | | 3 | EU | LZ | Bulgaria | 3 | 10.7 | LZ1 LZ8 LZ9 | | 4 | EU | ON | Belgium | 1 | 3.6 | OR3 | | 5 | EU | S5 | Slovenia | 1 | 3.6 | S57 | | 6 | EU | UA | European Russia | 8 | 28.6 | R4 R7 RK1 RN4 RT4 RU4 RZ3 UA4 UA9 | | 7 | AS | UA9 | Asiatic Russia | 3 | 10.7 | R9 RA9 | | 8 | EU | UR | Ukraine | 6 | 21.4 | UR4 UR7 UT0 UX1 UY5 UZ2 | | 9 | EU | YO | Romania | 1 | 3.6 | YO7 | | 10 | EU | YU | Serbia | 1 | 3.6 | YU1 |
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