go
iut-tarbes.fr use this as a nameserver. iut-tarbes.fr is a domain controlled by two nameservers at iut-tarbes.fr themselves. They are on different IP networks. Incoming mail for iut-tarbes.fr is handled by three mailservers at cict.fr. All of them are on the same IP network. iut-tarbes.fr has one IP number.

iut-tarbes.fr
a records
 
+ 192.52.3.56 192.52.0.0/19 AS553  
+ ---  
ns-soa records
snoms1.iut-tarbes.fr
+ 193.52.3.20 193.52.0.0/16 AS2200 -
+ --- -
ns records
snoms2.iut-tarbes.fr
+   AS?  
+ ---  
snoms1.iut-tarbes.fr
+ 193.52.3.20 193.52.0.0/16 AS2200 -
+ --- -
mx records
gw1-mail.cict.fr
+ 195.220.59.20 195.220.0.0/16 AS2200 -
+ --- -
gw2-mail.cict.fr
+ 195.220.59.21 195.220.0.0/16 AS2200 -
gw3-mail.cict.fr
+ 195.220.59.32 195.220.0.0/16 AS2200 -
domains using this as nameserver
iut-tarbes.fr