Can someone post the IP Ranges in use by various ISPs ?

[Radiotubes]

For Linux users, see if your distro has "whois" binary. You'll get the information below by running it with your own IP
.

65.184.0.0 - 65.191.255.255
Allocations for this OrgID serve Road Runner residential customers out of the Columbus, OH, Herndon, VA and Raleigh, NC RDCs

.
.

Code:

NetRange:      65.184.0.0 - 65.191.255.255
CIDR:           65.184.0.0/13
OriginAS:      
NetName:        RR
NetHandle:      NET-65-184-0-0-1
Parent:         NET-65-0-0-0-0
NetType:        Direct Allocation
RegDate:        2004-04-07
Updated:        2005-05-16
Ref:            http://whois.arin.net/rest/net/NET-65-184-0-0-1


OrgName:        Road Runner HoldCo LLC
OrgId:          RRMA
Address:        13820 Sunrise Valley Dr
City:           Herndon
StateProv:      VA
PostalCode:     20171
Country:        US
RegDate:        
Updated:        2011-06-07
Comment:        Allocations for this OrgID serve Road Runner residential customers out of the Columbus, OH, Herndon, VA and Raleigh, NC RDCs.
Ref:            http://whois.arin.net/rest/org/RRMA