[44net] BGP announcement from two different locations ?

Hi all, We are currently announcing the Corsican Internet subnet (44.190.11.0/24) via a Vultr VPS ($5/mo), which is one of the cheapest and easiest way I know. We have an iBGP (internal) session with them, and they announce our addresses from their public AS. We are developing the network on our island. We'd like to have redundant BGP announcement from two different locations and/or from two different providers. We have several BGP capable providers. Questions : - Does that mean we need to have our own AS number ? - If so, what's the best way to obtain such an AS number ? Does ARDC provide public AS numbers ? Or do we have to get one from regular Internet LIR ? - If so, does that mean I won't be able to use Vultr anymore (because Vultr announces our IPs from their AS, and AFAIK, they do not allow to announce from our own AS) ? Thank you in advance. 73 de TK1BI