Multicast Internet Route table.

[S, Somasundaram (Somasundaram)]

Members
    I have few questions related to Multicast deployment in the internet today.
1: Does all the ISP's provide Multicast Routing by default?
2:  Is there any placeholder where one can get to know the Multicast Internet 
Route table (usage, stability etc) just like Unicast Route table 
(http://bgpupdates.potaroo.net)?