Episode 284 reveals that Tier Harribel was a Vasto Lorde Menos Grande before being recruited by Sōsuke Aizen and turned into an Arrancar for his army. There is some information in the Masked Databook that supports this but the Manga has not stated it.
Ichigo is not a Vasto Lorde. A Vasto Lorde is a form of Menos. Menos are formed from the merging of hundreds of Hollows. Ichigo's Hollow is just one being and has not devoured any Hollows. Thus it & he are not Vasto Lorde.