Looks like your provider is traversing through TATA Communications (AS6453) on both of those.
Wonder what your latency would be with a SEACOM(AS37100) traversal, http://en.wikipedia.org/wiki/Telecommunications_in_Tanzania
Here are your downstream carrier options : http://www.cidr-report.org/cgi-bin/as-report?as=AS37100&v=4&...