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Sorry, we have no information about colo-69-31-91-102.pilosoft.com. pilosoft.com is a domain controlled by two nameservers at pilosoft.com themselves. They are on different IP networks. Incoming mail for pilosoft.com is handled by one mailserver also at pilosoft.com. pilosoft.com has one IP number , but the reverse is colo-69-31-40-106.pilosoft.com.

pilosoft.com
a records
 
+ 69.31.40.106 69.31.40.0/21 AS26627 colo-69-31-40-106.pilosoft.com
+ --- colo-69-31-40-106.pilosoft.com
ns-soa records
 
+   AS?  
+ ---  
ns records
ns5.pilosoft.com
+ 69.31.40.106 69.31.40.0/21 AS26627 colo-69-31-40-106.pilosoft.com
+ --- colo-69-31-40-106.pilosoft.com
ns6.pilosoft.com
+ 69.31.90.1 69.31.90.0/23 AS26627 dsl-gw-90.pilosoft.com
+ --- dsl-gw-90.pilosoft.com
mx records
mx.pilosoft.com
+ 69.31.44.168 69.31.40.0/21 AS26627  
+ ---  
ip numbers using ptr to this host
69.31.91.102