Is Axelar on Base Network?

Excuse me, could you clarify something for me? I've been hearing a lot about Axelar and its potential integration with various blockchain networks. However, I'm a bit confused about whether Axelar is actually operating on a base network or if it's more of a bridge between existing blockchains. Could you elaborate on whether Axelar is currently situated on a base network, and if so, which one? Additionally, if it's not on a base network, how does it function to connect and interoperate with different blockchain systems? Thank you for your assistance in clarifying this matter.