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33 unique codes for 71 characters:

Native	Symbola [1]	Code	UTF‑8	UTF‑16 LE	Name	Cat	Block
h	h	`0068`	`68`	`68` `00`	LATIN SMALL LETTER H	Ll	Basic Latin
t	t	`0074`	`74`	`74` `00`	LATIN SMALL LETTER T	Ll	Basic Latin
p	p	`0070`	`70`	`70` `00`	LATIN SMALL LETTER P	Ll	Basic Latin
s	s	`0073`	`73`	`73` `00`	LATIN SMALL LETTER S	Ll	Basic Latin
:	:	`003A`	`3A`	`3A` `00`	COLON	Po	Basic Latin
/	/	`002F`	`2F`	`2F` `00`	SOLIDUS	Po	Basic Latin
w	w	`0077`	`77`	`77` `00`	LATIN SMALL LETTER W	Ll	Basic Latin
.	.	`002E`	`2E`	`2E` `00`	FULL STOP	Po	Basic Latin
u	u	`0075`	`75`	`75` `00`	LATIN SMALL LETTER U	Ll	Basic Latin
l	l	`006C`	`6C`	`6C` `00`	LATIN SMALL LETTER L	Ll	Basic Latin
o	o	`006F`	`6F`	`6F` `00`	LATIN SMALL LETTER O	Ll	Basic Latin
a	a	`0061`	`61`	`61` `00`	LATIN SMALL LETTER A	Ll	Basic Latin
d	d	`0064`	`64`	`64` `00`	LATIN SMALL LETTER D	Ll	Basic Latin
e	e	`0065`	`65`	`65` `00`	LATIN SMALL LETTER E	Ll	Basic Latin
		`FEFF`	`EF` `BB` `BF`	`FF` `FE`	ZERO WIDTH NO-BREAK SPACE	Cf	Arabic Presentation Forms-B
f	f	`0066`	`66`	`66` `00`	LATIN SMALL LETTER F	Ll	Basic Latin
i	i	`0069`	`69`	`69` `00`	LATIN SMALL LETTER I	Ll	Basic Latin
8	8	`0038`	`38`	`38` `00`	DIGIT EIGHT	Nd	Basic Latin
9	9	`0039`	`39`	`39` `00`	DIGIT NINE	Nd	Basic Latin
1	1	`0031`	`31`	`31` `00`	DIGIT ONE	Nd	Basic Latin
4	4	`0034`	`34`	`34` `00`	DIGIT FOUR	Nd	Basic Latin
0	0	`0030`	`30`	`30` `00`	DIGIT ZERO	Nd	Basic Latin
3	3	`0033`	`33`	`33` `00`	DIGIT THREE	Nd	Basic Latin
5	5	`0035`	`35`	`35` `00`	DIGIT FIVE	Nd	Basic Latin
P	P	`0050`	`50`	`50` `00`	LATIN CAPITAL LETTER P	Lu	Basic Latin
r	r	`0072`	`72`	`72` `00`	LATIN SMALL LETTER R	Ll	Basic Latin
j	j	`006A`	`6A`	`6A` `00`	LATIN SMALL LETTER J	Ll	Basic Latin
c	c	`0063`	`63`	`63` `00`	LATIN SMALL LETTER C	Ll	Basic Latin
-	-	`002D`	`2D`	`2D` `00`	HYPHEN-MINUS	Pd	Basic Latin
x	x	`0078`	`78`	`78` `00`	LATIN SMALL LETTER X	Ll	Basic Latin
_	_	`005F`	`5F`	`5F` `00`	LOW LINE	Pc	Basic Latin
n	n	`006E`	`6E`	`6E` `00`	LATIN SMALL LETTER N	Ll	Basic Latin
m	m	`006D`	`6D`	`6D` `00`	LATIN SMALL LETTER M	Ll	Basic Latin

2 Unicode blocks:

Name	Range	Chart
Basic Latin	`0000`-`007F`	PDF
Arabic Presentation Forms-B	`FE70`-`FEFF`	PDF