Summary
hels.com.ua is delegated to two nameservers, however both delegated nameservers are missing in the zone. They are on different IP networks.
upc.ua,
ipx.ru,
itl.ua,
al.lg.ua,
matem.ru and at least 72 other hosts share nameservers with this domain.
com.ua is a domain controlled by six nameservers. All of them are on different IP networks.