23.235.252.50

NetRange:       23.235.252.0 - 23.235.252.255
CIDR:           23.235.252.0/24
NetName:        PNAP-ASHDC5
NetHandle:      NET-23-235-252-0-1
Parent:         SS-ASH2 (NET-23-235-224-0-1)
NetType:        Reassigned
OriginAS:       
Organization:   PNAP-ASHDC5 (PNAPA-1)
RegDate:        2016-08-30
Updated:        2016-08-30
Ref:            https://rdap.arin.net/registry/ip/23.235.252.0

OrgName:        PNAP-ASHDC5
OrgId:          PNAPA-1
Address:        21635 Red Rum Dr.
City:           Ashburn
StateProv:      VA
PostalCode:     20147
Country:        US
RegDate:        2016-08-30
Updated:        2016-08-30
Ref:            https://rdap.arin.net/registry/entity/PNAPA-1

OrgAbuseHandle: ADMIN6241-ARIN
OrgAbuseName:   Admin
OrgAbusePhone:  +1-855-330-1509 
OrgAbuseEmail:  ipadmin@phoenixnap.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN6241-ARIN

OrgTechHandle: ADMIN6241-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-855-330-1509 
OrgTechEmail:  ipadmin@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN6241-ARIN

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