66.28.165.0/24

NetRange:       66.28.0.0 - 66.28.255.255
CIDR:           66.28.0.0/16
NetName:        COGENT-NB-0000
NetHandle:      NET-66-28-0-0-1
Parent:         NET66 (NET-66-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Cogent Communications (COGC)
RegDate:        2000-10-12
Updated:        2012-03-02
Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
Comment:        Reassignment information for this block can be found at
Comment:        rwhois.cogentco.com 4321
Ref:            https://rdap.arin.net/registry/ip/66.28.0.0

OrgName:        Cogent Communications
OrgId:          COGC
Address:        2450 N Street NW
City:           Washington
StateProv:      DC
PostalCode:     20037
Country:        US
RegDate:        2000-05-30
Updated:        2023-10-11
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref:            https://rdap.arin.net/registry/entity/COGC

ReferralServer:  rwhois://rwhois.cogentco.com:4321

OrgAbuseHandle: COGEN-ARIN
OrgAbuseName:   Cogent Abuse
OrgAbusePhone:  +1-877-875-4311 
OrgAbuseEmail:  abuse@cogentco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COGEN-ARIN

OrgNOCHandle: ZC108-ARIN
OrgNOCName:   Cogent Communications
OrgNOCPhone:  +1-877-875-4311 
OrgNOCEmail:  noc@cogentco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZC108-ARIN

OrgTechHandle: IPALL-ARIN
OrgTechName:   IP Allocation
OrgTechPhone:  +1-877-875-4311 
OrgTechEmail:  ipalloc@cogentco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPALL-ARIN

RTechHandle: ZC108-ARIN
RTechName:   Cogent Communications
RTechPhone:  +1-877-875-4311 
RTechEmail:  noc@cogentco.com
RTechRef:    https://rdap.arin.net/registry/entity/ZC108-ARIN

Found a referral to rwhois.cogentco.com:4321.

network:ID:NET4-421CA50018
network:Network-Name:NET4-421CA50018
network:IP-Network:66.28.165.0/24
network:Org-Name:Schiff Hardin LLP
network:Street-Address:233 SOUTH WACKER DRIVE
network:City:CHICAGO
network:State:IL
network:Country:US
network:Postal-Code:60606
network:Tech-Contact:ZC108-ARIN
network:Updated:2023-09-01 13:06:15