| Prefixes | # | Cont. | ID | Country | Prefixes |
|---|
| 1 | AS | 4J | Azerbaijan | 1 | 0.5 | 4J3 | | 2 | NA | 8P | Barbados | 1 | 0.5 | 8P2 | | 3 | EU | 9A | Croatia | 2 | 1.0 | 9A1 9A3 | | 4 | AS | BY | China | 1 | 0.5 | BI8 | | 5 | NA | CM | Cuba | 1 | 0.5 | CO8 | | 6 | EU | CT | Portugal | 1 | 0.5 | CT7 | | 7 | SA | CX | Uruguay | 1 | 0.5 | CX9 | | 8 | EU | DL | Fed. Rep. of Germany | 7 | 3.6 | DG9 DH8 DK2 DL1 DO4 DO6 DP7 | | 9 | EU | E7 | Bosnia-Herzegovina | 1 | 0.5 | E77 | | 10 | EU | EA | Spain | 2 | 1.0 | EA4 EA7 | | 11 | EU | EI | Ireland | 2 | 1.0 | EI3 EI7 | | 12 | EU | ER | Moldova | 1 | 0.5 | ER4 | | 13 | EU | ES | Estonia | 1 | 0.5 | ES1 | | 14 | EU | EU | Belarus | 3 | 1.6 | EU1 EW7 EW8 | | 15 | EU | F | France | 5 | 2.6 | F1 F4 F5 F6 F8 | | 16 | EU | G | England | 8 | 4.1 | G0 G1 G2 G4 G7 M0 M1 M2 | | 17 | EU | GW | Wales | 1 | 0.5 | GW5 | | 18 | EU | HA | Hungary | 1 | 0.5 | HA6 | | 19 | EU | HB | Switzerland | 1 | 0.5 | HB9 | | 20 | NA | HI | Dominican Republic | 1 | 0.5 | HI3 | | 21 | EU | I | Italy | 16 | 8.3 | I1 I2 I3 I5 IK2 IK3 IK4 IK5 IK8 IU3 IU4 IV3 IW2 IZ0 IZ2 IZ3 | | 22 | EU | *IT9 | Sicily | 2 | 1.0 | IR9 IT9 | | 23 | NA | J3 | Grenada | 1 | 0.5 | J35 | | 24 | AS | JA | Japan | 2 | 1.0 | JH1 JL1 | | 25 | NA | K | United States | 53 | 27.5 | AA2 AA3 AC0 AE4 AE8 AG4 AI4 K0 K1 K2 K3 K4 K5 K7 K8 K9 KB8 KC0 KC2 KC3 KC9 KE8 KG4 KG5 KG9 KI6 KM4 KT9 KZ9 N0 N1 N2 N3 N4 N7 NE3 NG3 NV4 W1 W3 W4 W5 W7 W8 W9 WA1 WA2 WA3 WD9 WE9 WV4 WW5 WZ7 | | 26 | NA | KP4 | Puerto Rico | 1 | 0.5 | KP4 | | 27 | EU | LA | Norway | 2 | 1.0 | LA1 LC2 | | 28 | EU | LX | Luxembourg | 1 | 0.5 | LX1 | | 29 | EU | LY | Lithuania | 1 | 0.5 | LY9 | | 30 | EU | LZ | Bulgaria | 2 | 1.0 | LZ1 LZ2 | | 31 | EU | OE | Austria | 1 | 0.5 | OE7 | | 32 | EU | OH | Finland | 4 | 2.1 | OH1 OH3 OH4 OH5 | | 33 | EU | OK | Czech Republic | 4 | 2.1 | OK1 OK2 OK6 OL7 | | 34 | EU | OM | Slovak Republic | 1 | 0.5 | OM3 | | 35 | EU | ON | Belgium | 4 | 2.1 | ON4 ON5 ON6 OR3 | | 36 | EU | OZ | Denmark | 1 | 0.5 | 5P1 | | 37 | SA | P4 | Aruba | 1 | 0.5 | P49 | | 38 | EU | PA | Netherlands | 4 | 2.1 | PA2 PA3 PA7 PD2 | | 39 | EU | S5 | Slovenia | 3 | 1.6 | S51 S53 S57 | | 40 | EU | SM | Sweden | 4 | 2.1 | SE4 SE6 SG5 SM3 | | 41 | EU | SP | Poland | 5 | 2.6 | SN2 SN7 SO7 SP6 SQ5 | | 42 | EU | SV | Greece | 4 | 2.1 | J42 SV1 SV2 SZ1 | | 43 | AS | TA | Asiatic Turkey | 2 | 1.0 | TA3 TA7 | | 44 | EU | UA | European Russia | 8 | 4.1 | R2 R3 RA1 RA3 RA6 RQ7 RU6 UA3 | | 45 | AS | UA9 | Asiatic Russia | 1 | 0.5 | RA9 | | 46 | EU | UR | Ukraine | 9 | 4.7 | EM0 UR7 US1 UT2 UT5 UT7 UW1 UX7 UZ1 | | 47 | NA | VE | Canada | 2 | 1.0 | VA3 VE2 | | 48 | OC | VK | Australia | 1 | 0.5 | VK5 | | 49 | NA | XE | Mexico | 1 | 0.5 | XE1 | | 50 | EU | YL | Latvia | 1 | 0.5 | YL2 | | 51 | EU | YO | Romania | 3 | 1.6 | YO4 YO9 YP0 | | 52 | EU | YU | Serbia | 3 | 1.6 | YT2 YU1 YU5 | | 53 | SA | YV | Venezuela | 1 | 0.5 | YV5 | | 54 | EU | Z3 | North Macedonia | 1 | 0.5 | Z36 | | 55 | NA | ZF | Cayman Islands | 1 | 0.5 | ZF2 |
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