iP or domain name lookup

alter.net subdomain：

lag-1.chcgildt-ppr02-cc.alter.net

amazon-gw.customer.alter.net

internet-gw.customer.alter.net

emc-gw.customer.alter.net

verizon.com.customer.alter.net

marriott-gw.customer.alter.net

telmex.customer.alter.net

terremark-gw.customer.alter.net

chinaunicom-gw.customer.alter.net

ae3.gw7.lax1.alter.net

gw7.lax1.alter.net

xe-9-1-0.gw2.lax1.alter.net

xe-3-3-0.gw13.nyc1.alter.net

bundle-ether5.gw6.sjc7.alter.net

xe-2-2-3.gw7.sjc7.alter.net

More subdomains