Nope. I asked them too and there seems to be none and I ask them on their hotline but the agent don't know and the supervisor said it is protected for the company's privacy.
No theres NONE, for security reasons.
to prevent the intergrity of the network they wouldnt disclosed info on the exact whereabouts of their facilities
its vulnerable for savotage or attacks espcially those facilities lying in areas with rebels who extort royalty tax from telcos.