Alicia is the Spanish form of Alice — from the Old Germanic adel (noble) + the diminutive -itia. Alicia Witt (born 1975) — Twin Peaks (1990).
Alicia does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Alicia reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.