IP Address
72.75.47.72

Apparent source of spam, in early 2008.

Apparent HOSTNAME:  <...>.washdc.east.verizon.net

IP Address Owner Info:

Location: United States [City: Gaithersburg, Maryland]

OrgName:    Verizon Internet Services Inc. 
OrgID:      VRIS
Address:    1880 Campus Commons Dr
City:       Reston
StateProv:  VA
PostalCode: 20191
Country:    US

NetRange:   72.73.128.0 - 72.87.47.255 
CIDR:       72.73.128.0/17, 72.74.0.0/15, 72.76.0.0/14,
            72.80.0.0/14, 72.84.0.0/15, 72.86.0.0/16,
            72.87.0.0/19, 72.87.32.0/20 
NetName:    VIS-72-64
NetHandle:  NET-72-73-128-0-1
Parent:     NET-72-0-0-0-0
NetType:    Direct Allocation
NameServer: NS1.BELLATLANTIC.NET
NameServer: NS2.BELLATLANTIC.NET
NameServer: NS2.VERIZON.NET
NameServer: NS4.VERIZON.NET
Comment:    
RegDate:    2005-06-24
Updated:    2008-10-06

OrgAbuseHandle: VISAB-ARIN
OrgAbuseName:   VIS Abuse 
OrgAbusePhone:  +1-214-513-6711
OrgAbuseEmail:  ********@verizon.net

OrgTechHandle: ZV20-ARIN
OrgTechName:   Verizon Internet Services 
OrgTechPhone:  800-243-6994
OrgTechEmail:  *****@gnilink.net