Code page 866 (Cyrillic)
Code page 866 is the most widely used character encoding system to write Cyrillic-based languages : Belarusian, Bosnian, Bulgarian, Macedonian, Russian, Serbian, Ukrainian (Slavic languages), and Kazakh, Kyrgyz, Moldovan, Mongolian, Tajik, Uzbek (non-Slavic), Code page 855 being the alternative one. Only the extended character set differs from the original code page, the standard character set being plain ASCII.
The character table below is showing a pixel precise graphical represention for each character, along with a text description.
Extended character set (128 - 255) :
| Dec | Hex | Char | Description | Dec | Hex | Char | Description |
| 128 | 80 | Cyrillic upper case A | 192 | C0 | Box drawings light up and right | ||
| 129 | 81 | Cyrillic upper case BE | 193 | C1 | Box drawings light up and horizontal | ||
| 130 | 82 | Cyrillic upper case VE | 194 | C2 | Box drawings light down and horizontal | ||
| 131 | 83 | Cyrillic upper case GHE | 195 | C3 | Box drawings light vertical and right | ||
| 132 | 84 | Cyrillic upper case DE | 196 | C4 | Box drawings light horizontal | ||
| 133 | 85 | Cyrillic upper case IE | 197 | C5 | Box drawings light vertical and horizontal | ||
| 134 | 86 | Cyrillic upper case ZHE | 198 | C6 | Box drawings vertical single and right double | ||
| 135 | 87 | Cyrillic upper case ZE | 199 | C7 | Box drawings vertical double and right single | ||
| 136 | 88 | Cyrillic upper case I | 200 | C8 | Box drawings double up and right | ||
| 137 | 89 | Cyrillic upper case short I | 201 | C9 | Box drawings double down and right | ||
| 138 | 8A | Cyrillic upper case KA | 202 | CA | Box drawings double up and horizontal | ||
| 139 | 8B | Cyrillic upper case EL | 203 | CB | Box drawings double down and horizontal | ||
| 140 | 8C | Cyrillic upper case EM | 204 | CC | Box drawings double vertical and right | ||
| 141 | 8D | Cyrillic upper case EN | 205 | CD | Box drawings double horizontal | ||
| 142 | 8E | Cyrillic upper case O | 206 | CE | Box drawings double vertical and horizontal | ||
| 143 | 8F | Cyrillic upper case PE | 207 | CF | Box drawings up single and horizontal double | ||
| 144 | 90 | Cyrillic upper case ER | 208 | D0 | Box drawings up double and horizontal single | ||
| 145 | 91 | Cyrillic upper case ES | 209 | D1 | Box drawings down single and horizontal double | ||
| 146 | 92 | Cyrillic upper case TE | 210 | D2 | Box drawings down double and horizontal single | ||
| 147 | 93 | Cyrillic upper case U | 211 | D3 | Box drawings up double and right single | ||
| 148 | 94 | Cyrillic upper case EF | 212 | D4 | Box drawings up single and right double | ||
| 149 | 95 | Cyrillic upper case HA | 213 | D5 | Box drawings down single and right double | ||
| 150 | 96 | Cyrillic upper case TSE | 214 | D6 | Box drawings down double and right single | ||
| 151 | 97 | Cyrillic upper case CHE | 215 | D7 | Box drawings vertical double and horizontal single | ||
| 152 | 98 | Cyrillic upper case SHA | 216 | D8 | Box drawings vertical single and horizontal double | ||
| 153 | 99 | Cyrillic upper case SHCHA | 217 | D9 | Box drawings light up and left | ||
| 154 | 9A | Cyrillic upper case hard sign | 218 | DA | Box drawings light down and right | ||
| 155 | 9B | Cyrillic upper case YERU | 219 | DB | Full block | ||
| 156 | 9C | Cyrillic upper case soft sign | 220 | DC | Lower half block | ||
| 157 | 9D | Cyrillic upper case E | 221 | DD | Left half block | ||
| 158 | 9E | Cyrillic upper case YU | 222 | DE | Right half block | ||
| 159 | 9F | Cyrillic upper case YA | 223 | DF | Upper half block | ||
| 160 | A0 | Cyrillic lower case a | 224 | E0 | Cyrillic lower case er | ||
| 161 | A1 | Cyrillic lower case be | 225 | E1 | Cyrillic lower case es | ||
| 162 | A2 | Cyrillic lower case ve | 226 | E2 | Cyrillic lower case te | ||
| 163 | A3 | Cyrillic lower case ghe | 227 | E3 | Cyrillic lower case u | ||
| 164 | A4 | Cyrillic lower case de | 228 | E4 | Cyrillic lower case ef | ||
| 165 | A5 | Cyrillic lower case ie | 229 | E5 | Cyrillic lower case ha | ||
| 166 | A6 | Cyrillic lower case zhe | 230 | E6 | Cyrillic lower case tse | ||
| 167 | A7 | Cyrillic lower case ze | 231 | E7 | Cyrillic lower case che | ||
| 168 | A8 | Cyrillic lower case i | 232 | E8 | Cyrillic lower case sha | ||
| 169 | A9 | Cyrillic lower case short i | 233 | E9 | Cyrillic lower case shcha | ||
| 170 | AA | Cyrillic lower case ka | 234 | EA | Cyrillic lower case hard sign | ||
| 171 | AB | Cyrillic lower case el | 235 | EB | Cyrillic lower case yeru | ||
| 172 | AC | Cyrillic lower case em | 236 | EC | Cyrillic lower case soft sign | ||
| 173 | AD | Cyrillic lower case en | 237 | ED | Cyrillic lower case e | ||
| 174 | AE | Cyrillic lower case o | 238 | EE | Cyrillic lower case yu | ||
| 175 | AF | Cyrillic lower case pe | 239 | EF | Cyrillic lower case ya | ||
| 176 | B0 | Light shade | 240 | F0 | Cyrillic upper case IO | ||
| 177 | B1 | Medium shade | 241 | F1 | Cyrillic lower case io | ||
| 178 | B2 | Dark shade | 242 | F2 | Cyrillic upper case ukrainian IE | ||
| 179 | B3 | Box drawings light vertical | 243 | F3 | Cyrillic lower case ukrainian ie | ||
| 180 | B4 | Box drawings light vertical and left | 244 | F4 | Cyrillic upper case YI | ||
| 181 | B5 | Box drawings vertical single and left double | 245 | F5 | Cyrillic lower case yi | ||
| 182 | B6 | Box drawings vertical double and left single | 246 | F6 | Cyrillic upper case short U | ||
| 183 | B7 | Box drawings down double and left single | 247 | F7 | Cyrillic lower case short u | ||
| 184 | B8 | Box drawings down single and left double | 248 | F8 | Degree sign | ||
| 185 | B9 | Box drawings double vertical and left | 249 | F9 | Bullet operator | ||
| 186 | BA | Box drawings double vertical | 250 | FA | Middle dot | ||
| 187 | BB | Box drawings double down and left | 251 | FB | Square root | ||
| 188 | BC | Box drawings double up and left | 252 | FC | Numero sign | ||
| 189 | BD | Box drawings up double and left single | 253 | FD | Currency sign | ||
| 190 | BE | Box drawings up single and left double | 254 | FE | Black square | ||
| 191 | BF | Box drawings light down and left | 255 | FF | No-break space |

