Robtex

Up: 199.255.124.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 199.255.124.0/24
Down right: 199.255.125.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.255.125.100	A	www3.nicor.com
199.255.125.108	A	smtp.nicor.com
199.255.125.108	A	smtp1.nicor.com
199.255.125.108	A	smtp.nicorinc.com
199.255.125.115	PTR	ironmail2.nicor.com
199.255.125.115	A	smtp2.nicor.com
199.255.125.121	A	columbia-homesolutions.com
199.255.125.121	A	nicorlock12.com
199.255.125.121	A	nicorservices.com
199.255.125.134	A	prdedx.nicor.com
199.255.125.134	A	www.nicor.net
199.255.125.134	A	customerselect.com
199.255.125.200	A	dnsd.aglrsc.net
199.255.125.200	A	dnsd.aglrsc.co
199.255.125.200	A	dnsd.aglrsc.org