As per ETSI specification documents GSM 03.38 and 03.40, text messages can be:
Note: The maximum size of each message
is also dependent on following factors:
|
| GSM 7-Bit Decimal |
Character Name | Character | ISO-8859-1 Decimal |
| 0 | COMMERCIAL AT | @ | 64 |
| 1 | POUND SIGN | £ | 163 |
| 2 | DOLLAR SIGN | $ | 36 |
| 3 | YEN SIGN | ¥ | 165 |
| 4 | LATIN SMALL LETTER E WITH GRAVE | è | 232 |
| 5 | LATIN SMALL LETTER E WITH ACUTE | é | 233 |
| 6 | LATIN SMALL LETTER U WITH GRAVE | ù | 249 |
| 7 | LATIN SMALL LETTER I WITH GRAVE | ì | 236 |
| 8 | LATIN SMALL LETTER O WITH GRAVE | ò | 242 |
| 9 | LATIN CAPITAL LETTER C WITH CEDILLA | Ç | 199 |
| 10 | LINE FEED | 10 | |
| 11 | LATIN CAPITAL LETTER O WITH STROKE | Ø | 216 |
| 12 | LATIN SMALL LETTER O WITH STROKE | ø | 248 |
| 13 | CARRIAGE RETURN | 13 | |
| 14 | LATIN CAPITAL LETTER A WITH RING ABOVE | Å | 197 |
| 15 | LATIN SMALL LETTER A WITH RING ABOVE | å | 229 |
| 16 | GREEK CAPITAL LETTER DELTA | Δ | 916 |
| 17 | LOW LINE | _ | 95 |
| 18 | GREEK CAPITAL LETTER PHI | Φ | 934 |
| 19 | GREEK CAPITAL LETTER GAMMA | Γ | 915 |
| 20 | GREEK CAPITAL LETTER LAMBDA | Λ | 923 |
| 21 | GREEK CAPITAL LETTER OMEGA | Ω | 937 |
| 22 | GREEK CAPITAL LETTER PI | Π | 928 |
| 23 | GREEK CAPITAL LETTER PSI | Ψ | 936 |
| 24 | GREEK CAPITAL LETTER SIGMA | Σ | 931 |
| 25 | GREEK CAPITAL LETTER THETA | Θ | 920 |
| 26 | GREEK CAPITAL LETTER XI | Ξ | 926 |
| 27 | ESCAPE TO EXTENSION TABLE | ||
| 27 10 | FORM FEED | 12 | |
| 27 20 | CIRCUMFLEX ACCENT | ^ | 94 |
| 27 40 | LEFT CURLY BRACKET | { | 123 |
| 27 41 | RIGHT CURLY BRACKET | } | 125 |
| 27 47 | REVERSE SOLIDUS (BACKSLASH) | \ | 92 |
| 27 60 | LEFT SQUARE BRACKET | [ | 91 |
| 27 61 | TILDE | ~ | 126 |
| 27 62 | RIGHT SQUARE BRACKET | ] | 93 |
| 27 64 | VERTICAL BAR | | | 124 |
| 27 101 | EURO SIGN | € | 164 (ISO-8859-15) 8364 (ANSI) |
| 28 | LATIN CAPITAL LETTER AE | Æ | 198 |
| 29 | LATIN SMALL LETTER AE | æ | 230 |
| 30 | LATIN SMALL LETTER SHARP S (German) | ß | 223 |
| 31 | LATIN CAPITAL LETTER E WITH ACUTE | É | 201 |
| 32 | SPACE | 32 | |
| 33 | EXCLAMATION MARK | ! | 33 |
| 34 | QUOTATION MARK | " | 34 |
| 35 | NUMBER SIGN | # | 35 |
| 36 | CURRENCY SIGN | ¤ | 164 (ISO-8859-1) |
| 37 | PERCENT SIGN | % | 37 |
| 38 | AMPERSAND | & | 38 |
| 39 | APOSTROPHE | ' | 39 |
| 40 | LEFT PARENTHESIS | ( | 40 |
| 41 | RIGHT PARENTHESIS | ) | 41 |
| 42 | ASTERISK | * | 42 |
| 43 | PLUS SIGN | + | 43 |
| 44 | COMMA | , | 44 |
| 45 | HYPHEN-MINUS | - | 45 |
| 46 | FULL STOP | . | 46 |
| 47 | SOLIDUS (SLASH) | / | 47 |
| 48 | DIGIT ZERO | 0 | 48 |
| 49 | DIGIT ONE | 1 | 49 |
| 50 | DIGIT TWO | 2 | 50 |
| 51 | DIGIT THREE | 3 | 51 |
| 52 | DIGIT FOUR | 4 | 52 |
| 53 | DIGIT FIVE | 5 | 53 |
| 54 | DIGIT SIX | 6 | 54 |
| 55 | DIGIT SEVEN | 7 | 55 |
| 56 | DIGIT EIGHT | 8 | 56 |
| 57 | DIGIT NINE | 9 | 57 |
| 58 | COLON | : | 58 |
| 59 | SEMICOLON | ; | 59 |
| 60 | LESS-THAN SIGN | < | 60 |
| 61 | EQUALS SIGN | = | 61 |
| 62 | GREATER-THAN SIGN | > | 62 |
| 63 | QUESTION MARK | ? | 63 |
| 64 | INVERTED EXCLAMATION MARK | ¡ | 161 |
| 65 | LATIN CAPITAL LETTER A | A | 65 |
| 66 | LATIN CAPITAL LETTER B | B | 66 |
| 67 | LATIN CAPITAL LETTER C | C | 67 |
| 68 | LATIN CAPITAL LETTER D | D | 68 |
| 69 | LATIN CAPITAL LETTER E | E | 69 |
| 70 | LATIN CAPITAL LETTER F | F | 70 |
| 71 | LATIN CAPITAL LETTER G | G | 71 |
| 72 | LATIN CAPITAL LETTER H | H | 72 |
| 73 | LATIN CAPITAL LETTER I | I | 73 |
| 74 | LATIN CAPITAL LETTER J | J | 74 |
| 75 | LATIN CAPITAL LETTER K | K | 75 |
| 76 | LATIN CAPITAL LETTER L | L | 76 |
| 77 | LATIN CAPITAL LETTER M | M | 77 |
| 78 | LATIN CAPITAL LETTER N | N | 78 |
| 79 | LATIN CAPITAL LETTER O | O | 79 |
| 80 | LATIN CAPITAL LETTER P | P | 80 |
| 81 | LATIN CAPITAL LETTER Q | Q | 81 |
| 82 | LATIN CAPITAL LETTER R | R | 82 |
| 83 | LATIN CAPITAL LETTER S | S | 83 |
| 84 | LATIN CAPITAL LETTER T | T | 84 |
| 85 | LATIN CAPITAL LETTER U | U | 85 |
| 86 | LATIN CAPITAL LETTER V | V | 86 |
| 87 | LATIN CAPITAL LETTER W | W | 87 |
| 88 | LATIN CAPITAL LETTER X | X | 88 |
| 89 | LATIN CAPITAL LETTER Y | Y | 89 |
| 90 | LATIN CAPITAL LETTER Z | Z | 90 |
| 91 | LATIN CAPITAL LETTER A WITH DIAERESIS | Ä | 196 |
| 92 | LATIN CAPITAL LETTER O WITH DIAERESIS | Ö | 214 |
| 93 | LATIN CAPITAL LETTER N WITH TILDE | Ñ | 209 |
| 94 | LATIN CAPITAL LETTER U WITH DIAERESIS | Ü | 220 |
| 95 | SECTION SIGN | § | 167 |
| 96 | INVERTED QUESTION MARK | ¿ | 191 |
| 97 | LATIN SMALL LETTER A | a | 97 |
| 98 | LATIN SMALL LETTER B | b | 98 |
| 99 | LATIN SMALL LETTER C | c | 99 |
| 100 | LATIN SMALL LETTER D | d | 100 |
| 101 | LATIN SMALL LETTER E | e | 101 |
| 102 | LATIN SMALL LETTER F | f | 102 |
| 103 | LATIN SMALL LETTER G | g | 103 |
| 104 | LATIN SMALL LETTER H | h | 104 |
| 105 | LATIN SMALL LETTER I | i | 105 |
| 106 | LATIN SMALL LETTER J | j | 106 |
| 107 | LATIN SMALL LETTER K | k | 107 |
| 108 | LATIN SMALL LETTER L | l | 108 |
| 109 | LATIN SMALL LETTER M | m | 109 |
| 110 | LATIN SMALL LETTER N | n | 110 |
| 111 | LATIN SMALL LETTER O | o | 111 |
| 112 | LATIN SMALL LETTER P | p | 112 |
| 113 | LATIN SMALL LETTER Q | q | 113 |
| 114 | LATIN SMALL LETTER R | r | 114 |
| 115 | LATIN SMALL LETTER S | s | 115 |
| 116 | LATIN SMALL LETTER T | t | 116 |
| 117 | LATIN SMALL LETTER U | u | 117 |
| 118 | LATIN SMALL LETTER V | v | 118 |
| 119 | LATIN SMALL LETTER W | w | 119 |
| 120 | LATIN SMALL LETTER X | x | 120 |
| 121 | LATIN SMALL LETTER Y | y | 121 |
| 122 | LATIN SMALL LETTER Z | z | 122 |
| 123 | LATIN SMALL LETTER A WITH DIAERESIS | ä | 228 |
| 124 | LATIN SMALL LETTER O WITH DIAERESIS | ö | 246 |
| 125 | LATIN SMALL LETTER N WITH TILDE | ñ | 241 |
| 126 | LATIN SMALL LETTER U WITH DIAERESIS | ü | 252 |
| 127 | LATIN SMALL LETTER A WITH GRAVE | à | 224 |