Satavahana dynasty ruled over peninsular India for around 460 yrs from 230 BCE to 236 CE and remained one of the most illustrious & powerful empires of ancient India. Puranas mention Simuka as the founder of Satavahana dynasty who rose to power soon after death of emperor Ashoka.
In later period when the empire extended eastwards till the Krishna-Godavari deltas, their capital also shifted & hence started to be called Andhras.
1) The History and Inscriptions of The Satavahanas and The Western Kshatrapas by V.V. Mirashi.
2)Early History Of Andhra Country.
Nasik cave inscription of King Pulumavi Vashistiputra proving the Satavahanas were Brahmanas by caste.
— A\u015bhwapati (@kirron909) June 2, 2021
Source: Epigraphia Indica Vol-08. https://t.co/IzOD1FBTKG https://t.co/TXaLbazZ58 pic.twitter.com/75wtgQtOdF