72.11.144.169

NetRange:       72.11.128.0 - 72.11.159.255
CIDR:           72.11.128.0/19
NetName:        QUADRANET
NetHandle:      NET-72-11-128-0-1
Parent:         NET72 (NET-72-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS8100
Organization:   QuadraNet Enterprises LLC (QEL-5)
RegDate:        2004-10-21
Updated:        2018-08-30
Ref:            https://rdap.arin.net/registry/ip/72.11.128.0

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.