99.10.222.128.in-addr.arpa domain name pointer spek103-b.rtp.dg.com.
100.10.222.128.in-addr.arpa domain name pointer spe-sw-1.rtp.dg.com.
101.10.222.128.in-addr.arpa domain name pointer spek104-a.rtp.dg.com.
102.10.222.128.in-addr.arpa domain name pointer spek104-b.rtp.dg.com.