Extended ASCII table, as the name suggests, is an extended version of the original ASCII table. It uses 8-bits and consists of encodings for characters in the range 0 - 255.
The first part of the extended ASCII table (0 - 127) is same as the original ASCII table. The next part (128 - 255) has several variations. The table below is according to Windows-1252 character set which is a super set of ISO-8859-1. In ISO-8859-1, the characters from 128 to 159 are not defined. However, In Windows-1252, the characters from 128 to 159 are used for some useful symbols as displayed in the following table.
| Dec | Hex | Octal | Binary | Char | Description |
|---|---|---|---|---|---|
| 128 | 80 | 200 | 10000000 | € | euro sign |
| 129 | 81 | 201 | 10000001 | Not Used | |
| 130 | 82 | 202 | 10000010 | ‚ | single low-9 quotation mark |
| 131 | 83 | 203 | 10000011 | ƒ | Latin small letter f with hook |
| 132 | 84 | 204 | 10000100 | „ | double low-9 quotation mark |
| 133 | 85 | 205 | 10000101 | … | horizontal ellipsis |
| 134 | 86 | 206 | 10000110 | † | dagger |
| 135 | 87 | 207 | 10000111 | ‡ | double dagger |
| 136 | 88 | 210 | 10001000 | ˆ | modifier letter circumflex accent |
| 137 | 89 | 211 | 10001001 | ‰ | per mille sign |
| 138 | 8A | 212 | 10001010 | Š | Latin capital letter S with caron |
| 139 | 8B | 213 | 10001011 | ‹ | single left-pointing angle quotation mark |
| 140 | 8C | 214 | 10001100 | Π| Latin capital ligature OE |
| 141 | 8D | 215 | 10001101 | Not Used | |
| 142 | 8E | 216 | 10001110 | Ž | Latin capital letter Z with caron |
| 143 | 8F | 217 | 10001111 | Not Used | |
| 144 | 90 | 220 | 10010000 | Not Used | |
| 145 | 91 | 221 | 10010001 | ‘ | left single quotation mark |
| 146 | 92 | 222 | 10010010 | ’ | right single quotation mark |
| 147 | 93 | 223 | 10010011 | “ | left double quotation mark |
| 148 | 94 | 224 | 10010100 | ” | right double quotation mark |
| 149 | 95 | 225 | 10010101 | • | bullet |
| 150 | 96 | 226 | 10010110 | – | en dash |
| 151 | 97 | 227 | 10010111 | — | em dash |
| 152 | 98 | 230 | 10011000 | ˜ | small tilde |
| 153 | 99 | 231 | 10011001 | ™ | trade mark sign |
| 154 | 9A | 232 | 10011010 | š | Latin small letter s with caron |
| 155 | 9B | 233 | 10011011 | › | single right-pointing angle quotation mark |
| 156 | 9C | 234 | 10011100 | œ | Latin small ligature oe |
| 157 | 9D | 235 | 10011101 | Not Used | |
| 158 | 9E | 236 | 10011110 | ž | Latin small letter z with caron |
| 159 | 9F | 237 | 10011111 | Ÿ | Latin capital letter Y with diaeresis |
| 160 | A0 | 240 | 10100000 | no-break space | |
| 161 | A1 | 241 | 10100001 | ¡ | inverted exclamation mark |
| 162 | A2 | 242 | 10100010 | ¢ | cent sign |
| 163 | A3 | 243 | 10100011 | £ | pound sign |
| 164 | A4 | 244 | 10100100 | ¤ | currency sign |
| 165 | A5 | 245 | 10100101 | ¥ | yen sign |
| 166 | A6 | 246 | 10100110 | ¦ | broken bar |
| 167 | A7 | 247 | 10100111 | § | section sign |
| 168 | A8 | 250 | 10101000 | ¨ | diaeresis |
| 169 | A9 | 251 | 10101001 | © | copyright sign |
| 170 | AA | 252 | 10101010 | ª | feminine ordinal indicator |
| 171 | AB | 253 | 10101011 | « | left-pointing double angle quotation mark |
| 172 | AC | 254 | 10101100 | ¬ | not sign |
| 173 | AD | 255 | 10101101 | � | soft hyphen |
| 174 | AE | 256 | 10101110 | ® | registered sign |
| 175 | AF | 257 | 10101111 | ¯ | macron |
| 176 | B0 | 260 | 10110000 | ° | degree sign |
| 177 | B1 | 261 | 10110001 | ± | plus-minus sign |
| 178 | B2 | 262 | 10110010 | ² | superscript two |
| 179 | B3 | 263 | 10110011 | ³ | superscript three |
| 180 | B4 | 264 | 10110100 | ´ | acute accent |
| 181 | B5 | 265 | 10110101 | µ | micro sign |
| 182 | B6 | 266 | 10110110 | ¶ | pilcrow sign |
| 183 | B7 | 267 | 10110111 | · | middle dot |
| 184 | B8 | 270 | 10111000 | ¸ | cedilla |
| 185 | B9 | 271 | 10111001 | ¹ | superscript one |
| 186 | BA | 272 | 10111010 | º | masculine ordinal indicator |
| 187 | BB | 273 | 10111011 | » | right-pointing double angle quotation mark |
| 188 | BC | 274 | 10111100 | ¼ | vulgar fraction one quarter |
| 189 | BD | 275 | 10111101 | ½ | vulgar fraction one half |
| 190 | BE | 276 | 10111110 | ¾ | vulgar fraction three quarters |
| 191 | BF | 277 | 10111111 | ¿ | inverted question mark |
| 192 | C0 | 300 | 11000000 | À | Latin capital letter A with grave |
| 193 | C1 | 301 | 11000001 | Á | Latin capital letter A with acute |
| 194 | C2 | 302 | 11000010 | Â | Latin capital letter A with circumflex |
| 195 | C3 | 303 | 11000011 | Ã | Latin capital letter A with tilde |
| 196 | C4 | 304 | 11000100 | Ä | Latin capital letter A with diaeresis |
| 197 | C5 | 305 | 11000101 | Å | Latin capital letter A with ring above |
| 198 | C6 | 306 | 11000110 | Æ | Latin capital letter AE |
| 199 | C7 | 307 | 11000111 | Ç | Latin capital letter C with cedilla |
| 200 | C8 | 310 | 11001000 | È | Latin capital letter E with grave |
| 201 | C9 | 311 | 11001001 | É | Latin capital letter E with acute |
| 202 | CA | 312 | 11001010 | Ê | Latin capital letter E with circumflex |
| 203 | CB | 313 | 11001011 | Ë | Latin capital letter E with diaeresis |
| 204 | CC | 314 | 11001100 | Ì | Latin capital letter I with grave |
| 205 | CD | 315 | 11001101 | Í | Latin capital letter I with acute |
| 206 | CE | 316 | 11001110 | Î | Latin capital letter I with circumflex |
| 207 | CF | 317 | 11001111 | Ï | Latin capital letter I with diaeresis |
| 208 | D0 | 320 | 11010000 | Ð | Latin capital letter Eth |
| 209 | D1 | 321 | 11010001 | Ñ | Latin capital letter N with tilde |
| 210 | D2 | 322 | 11010010 | Ò | Latin capital letter O with grave |
| 211 | D3 | 323 | 11010011 | Ó | Latin capital letter O with acute |
| 212 | D4 | 324 | 11010100 | Ô | Latin capital letter O with circumflex |
| 213 | D5 | 325 | 11010101 | Õ | Latin capital letter O with tilde |
| 214 | D6 | 326 | 11010110 | Ö | Latin capital letter O with diaeresis |
| 215 | D7 | 327 | 11010111 | × | multiplication sign |
| 216 | D8 | 330 | 11011000 | Ø | Latin capital letter O with stroke |
| 217 | D9 | 331 | 11011001 | Ù | Latin capital letter U with grave |
| 218 | DA | 332 | 11011010 | Ú | Latin capital letter U with acute |
| 219 | DB | 333 | 11011011 | Û | Latin capital letter U with circumflex |
| 220 | DC | 334 | 11011100 | Ü | Latin capital letter U with diaeresis |
| 221 | DD | 335 | 11011101 | Ý | Latin capital letter Y with acute |
| 222 | DE | 336 | 11011110 | Þ | Latin capital letter Thorn |
| 223 | DF | 337 | 11011111 | ß | Latin small letter sharp s |
| 224 | E0 | 340 | 11100000 | à | Latin small letter a with grave |
| 225 | E1 | 341 | 11100001 | á | Latin small letter a with acute |
| 226 | E2 | 342 | 11100010 | â | Latin small letter a with circumflex |
| 227 | E3 | 343 | 11100011 | ã | Latin small letter a with tilde |
| 228 | E4 | 344 | 11100100 | ä | Latin small letter a with diaeresis |
| 229 | E5 | 345 | 11100101 | å | Latin small letter a with ring above |
| 230 | E6 | 346 | 11100110 | æ | Latin small letter ae |
| 231 | E7 | 347 | 11100111 | ç | Latin small letter c with cedilla |
| 232 | E8 | 350 | 11101000 | è | Latin small letter e with grave |
| 233 | E9 | 351 | 11101001 | é | Latin small letter e with acute |
| 234 | EA | 352 | 11101010 | ê | Latin small letter e with circumflex |
| 235 | EB | 353 | 11101011 | ë | Latin small letter e with diaeresis |
| 236 | EC | 354 | 11101100 | ì | Latin small letter i with grave |
| 237 | ED | 355 | 11101101 | í | Latin small letter i with acute |
| 238 | EE | 356 | 11101110 | î | Latin small letter i with circumflex |
| 239 | EF | 357 | 11101111 | ï | Latin small letter i with diaeresis |
| 240 | F0 | 360 | 11110000 | ð | Latin small letter eth |
| 241 | F1 | 361 | 11110001 | ñ | Latin small letter n with tilde |
| 242 | F2 | 362 | 11110010 | ò | Latin small letter o with grave |
| 243 | F3 | 363 | 11110011 | ó | Latin small letter o with acute |
| 244 | F4 | 364 | 11110100 | ô | Latin small letter o with circumflex |
| 245 | F5 | 365 | 11110101 | õ | Latin small letter o with tilde |
| 246 | F6 | 366 | 11110110 | ö | Latin small letter o with diaeresis |
| 247 | F7 | 367 | 11110111 | ÷ | division sign |
| 248 | F8 | 370 | 11111000 | ø | Latin small letter o with stroke |
| 249 | F9 | 371 | 11111001 | ù | Latin small letter u with grave |
| 250 | FA | 372 | 11111010 | ú | Latin small letter u with acute |
| 251 | FB | 373 | 11111011 | û | Latin small letter with circumflex |
| 252 | FC | 374 | 11111100 | ü | Latin small letter u with diaeresis |
| 253 | FD | 375 | 11111101 | ý | Latin small letter y with acute |
| 254 | FE | 376 | 11111110 | þ | Latin small letter thorn |
| 255 | FF | 377 | 11111111 | ÿ | Latin small letter y with diaeresis |
The Extended (8-bit) ASCII character set has several variations. Following are the most widely used 8-bit character sets -
Windows-1252 was the first default character set in Windows. The first part of Windows-1252 character set (0 - 127) is same as the original ASCII character set. It contains upper and lowercase alphabets (A-Za-z), digits (0-9), special characters (e.g. []{}()<>?|$@#), and control characters (e.g. \n, \b, \t).
The next part which consists of entity numbers ranging from 128 to 255 has some useful symbols and signs. The extended ASCII table shown in this page follows Windows-1252 character set.
The ISO-8859-1 character set was the default character set in HTML 4.01. It is an ISO standard. ISO (International Standards Organization) defines the standard character sets for different languages/alphabets.
ISO-8859-1 is very similar to Windows-1252 character set. The only difference is that in ISO-8859-1, the characters from 128 to 159 are not defined.