66.63.190.0/24

NetRange:       66.63.160.0 - 66.63.191.255
CIDR:           66.63.160.0/19
NetName:        QUADRANET
NetHandle:      NET-66-63-160-0-1
Parent:         NET66 (NET-66-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS8100
Organization:   QuadraNet Enterprises LLC (QEL-5)
RegDate:        2003-08-20
Updated:        2018-08-30
Ref:            https://rdap.arin.net/registry/ip/66.63.160.0

OrgName:        QuadraNet Enterprises LLC
OrgId:          QEL-5
Address:        530 W. 6th ST 
Address:        STE #901
City:           Los Angeles
StateProv:      CA
PostalCode:     90014
Country:        US
RegDate:        2018-06-07
Updated:        2023-02-14
Ref:            https://rdap.arin.net/registry/entity/QEL-5

ReferralServer:  rwhois://rwhois.quadranet.com:4321

OrgTechHandle: QNO6-ARIN
OrgTechName:   QuadraNet Network Operations
OrgTechPhone:  +1-213-614-9371 
OrgTechEmail:  support@quadranet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/QNO6-ARIN

OrgAbuseHandle: QUADR4-ARIN
OrgAbuseName:   QuadraNet Abuse
OrgAbusePhone:  +1-213-614-8371 
OrgAbuseEmail:  abuse@quadranet.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/QUADR4-ARIN

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