DNS log analysis , what might be the regions?

[Shishir Saud]

Hello all,

what might be the regions for this ? i am getting such logs in my dns 
log analysis.

unexpected RCODE (SERVFAIL) resolving 
'1.95.28.83.combined-HIB.dnsiplists.completewhois.com/A/IN': 64.68.11.11#53
unexpected RCODE (SERVFAIL) resolving 'mistyuk2.biafuru.net/MX/IN': 
216.198.199.201#53
unexpected RCODE (SERVFAIL) resolving 'mistyuk2.biafuru.net/MX/IN': 
216.198.199.180#53
unexpected RCODE (SERVFAIL) resolving 'mistyuk2.biafuru.net/MX/IN': 
216.198.199.180#53
unexpected RCODE (SERVFAIL) resolving 'mistyuk2.biafuru.net/MX/IN': 
216.198.199.201#53

#named -v
BIND 9.3.1

thanks in advance
cicir