From ARIN WhoIS:
Search results for: 66.66.66.66
OrgName: Road Runner HoldCo LLC
OrgID: RRNY
Address: 13241 Woodland Park Road
City: Herndon
StateProv: VA
PostalCode: 20171
Country: US
ReferralServer: rwhois://ipmt.rr.com:4321
NetRange: 66.66.0.0 - 66.67.255.255
CIDR: 66.66.0.0/15
NetName: RR-NYS-2BLK
NetHandle: NET-66-66-0-0-1
Parent: NET-66-0-0-0-0
NetType: Direct Allocation
NameServer: DNS1.RR.COM
NameServer: DNS2.RR.COM
NameServer: DNS3.RR.COM
NameServer: DNS4.RR.COM
Comment: ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
RegDate: 2001-01-17
Updated: 2002-08-30
RTechHandle: ZS30-ARIN
RTechName: ServiceCo LLC
RTechPhone: +1-703-345-3416
RTechEmail: abuse@rr.com
OrgAbuseHandle: ABUSE10-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-703-345-3416
OrgAbuseEmail: abuse@rr.com
OrgTechHandle: IPTEC-ARIN
OrgTechName: IP Tech
OrgTechPhone: +1-703-345-3416
OrgTechEmail: abuse@rr.com
# ARIN WHOIS database, last updated 2007-06-26 19:10
# Enter ? for additional hints on searching ARIN's WHOIS database.
As for 6.6.6.6:
Search results for: 6.6.6.6
OrgName: DoD Network Information Center
OrgID: DNIC
Address: 3990 E. Broad Street
City: Columbus
StateProv: OH
PostalCode: 43218
Country: US
NetRange: 6.0.0.0 - 6.255.255.255
CIDR: 6.0.0.0/8
NetName: YUMA-NET
NetHandle: NET-6-0-0-0-1
Parent:
NetType: Direct Allocation
NameServer: NS01.ARMY.MIL
NameServer: NS02.ARMY.MIL
NameServer: NS03.ARMY.MIL
Comment: Army Information Systems Center
Comment: U.S. Army Yuma Proving Ground
Comment: Building 2105
Comment: Yuma, AZ 85365-9110 US
RegDate:
Updated: 2002-10-07
OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName: Network DoD
OrgTechPhone: +1-800-365-3642
OrgTechEmail: HOSTMASTER@nic.mil
# ARIN WHOIS database, last updated 2007-06-26 19:10
# Enter ? for additional hints on searching ARIN's WHOIS database.