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sp-mx1.tracfone.com has one IP number , which also has a corresponding reverse pointer. mail.tracfone.com cnames to this hostname. sp-mx1.net10.com point to the same IP. tracfoneld.com, topptelecom.net, amigotracfone.com and tracfonelongdistance.com use this as a mailserver. tracfone.com is a domain controlled by two nameservers at tracfone.com themselves. They are on the same IP network. Incoming mail for tracfone.com is handled by two mailservers having a total of four IP numbers. There are two duplicated IP numbers. Some of them are on the same IP network. tracfone.com has one IP number. sp-mx1.tracfone.com is hosted on a server in United States.

sp-mx1.tracfone.com
a records
 
+ 65.167.208.35 65.167.208.0/23 AS32091 -
+ --- -

tracfone.com
a records
 
+ 65.167.208.118 65.167.208.0/23 AS32091  
+ ---  
ns-soa records
sp-ex-auth01.tracfone.com
+ 65.167.208.20 65.167.208.0/23 AS32091 -
+ --- -
ns records
sp-ex-auth01.tracfone.com
+ 65.167.208.20 65.167.208.0/23 AS32091 -
+ --- -
sp-ex-auth02.tracfone.com
+ 65.167.208.21 65.167.208.0/23 AS32091 -
mx records
tracfone.com.inbound10.mxlogic.net
+ 208.65.144.2 208.65.144.0/24 AS14600 mxl144v2.mxlogic.net
+ --- mxl144v2.mxlogic.net
+ 208.65.144.3 208.65.144.0/24 AS14600 mxl144v3.mxlogic.net
+ --- mxl144v3.mxlogic.net
+ 208.65.145.3 208.65.145.0/24 AS14600 mxl145v3.mxlogic.net
+ --- mxl145v3.mxlogic.net
tracfone.com.inbound10.mxlogicmx.net
+ 208.65.144.2 208.65.144.0/24 AS14600 mxl144v2.mxlogic.net
+ --- mxl144v2.mxlogic.net
+ 208.65.144.3 208.65.144.0/24 AS14600 mxl144v3.mxlogic.net
+ --- mxl144v3.mxlogic.net
+ 208.65.145.2 208.65.145.0/24 AS14600 mxl145v2.mxlogic.net
+ --- mxl145v2.mxlogic.net
ip numbers of host
65.167.208.35
ptrs of ip numbers
sp-mx1.tracfone.com
ip numbers using ptr to this host
65.167.208.35
hostnames sharing ip with a-records
sp-mx1.net10.com
hostnames pointing here by cname
mail.tracfone.com
domains using this as mailserver
amigotracfone.com
topptelecom.net
tracfoneld.com
tracfonelongdistance.com