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www.mec.ca has one IP number , which is the same as for mec.ca. www.mec.ca also has a corresponding reverse pointer. mec.ca, mec.qc.ca and grandmarchemec.ca point to the same IP. mec.ca is a domain controlled by two nameservers at fusepoint.ca. They are on different IP networks. Incoming mail for mec.ca is handled by one mailserver at electric.net. www.mec.ca is hosted on a server in Canada.

www.mec.ca
a records
 
+ 64.254.151.51 64.254.144.0/21 AS16941 mec.ca
+ --- mec.ca
+ --- -

mec.ca
a records
 
+ 64.254.151.51 64.254.144.0/21 AS16941 -
+ --- -
+ --- www.mec.ca
ns-soa records
ns1.fusepoint.ca
+ 64.254.144.133 64.254.144.0/21 AS16941 ns1.fusepoint.com
+ --- ns1.fusepoint.com
ns records
ns1.fusepoint.ca
+ 64.254.144.133 64.254.144.0/21 AS16941 ns1.fusepoint.com
+ --- ns1.fusepoint.com
ns2.fusepoint.ca
+ 216.176.48.136 216.176.48.0/20 AS16941 ns2.fusepoint.com
+ --- ns2.fusepoint.com
mx records
inbound.electric.net
+ 216.129.90.46 216.129.80.0/20 AS15290 -
+ --- -
ip numbers of host
64.254.151.51
ptrs of ip numbers
mec.ca
www.mec.ca
ip numbers using ptr to this host
64.254.151.51
hostnames sharing ip with a-records
grandmarchemec.ca
mec.ca
mec.qc.ca