192.33.91.187

NetRange:       192.33.87.0 - 192.33.111.255
CIDR:           192.33.87.0/24, 192.33.96.0/20, 192.33.88.0/21
NetName:        RIPE-ERX-192-33-87-0
NetHandle:      NET-192-33-87-0-1
Parent:         NET192 (NET-192-0-0-0-0)
NetType:        Early Registrations, Transferred to RIPE NCC
OriginAS:       
Organization:   RIPE Network Coordination Centre (RIPE)
RegDate:        2005-02-28
Updated:        2005-02-28
Comment:        These addresses have been further assigned to users in
Comment:        the RIPE NCC region.  Contact information can be found in
Comment:        the RIPE database at http://www.ripe.net/whois
Ref:            https://rdap.arin.net/registry/ip/192.33.87.0

ResourceLink:  https://apps.db.ripe.net/search/query.html
ResourceLink:  whois.ripe.net

OrgName:        RIPE Network Coordination Centre
OrgId:          RIPE
Address:        P.O. Box 10096
City:           Amsterdam
StateProv:      
PostalCode:     1001EB
Country:        NL
RegDate:        
Updated:        2013-07-29
Ref:            https://rdap.arin.net/registry/entity/RIPE

ReferralServer:  whois://whois.ripe.net
ResourceLink:  https://apps.db.ripe.net/search/query.html

OrgAbuseHandle: ABUSE3850-ARIN
OrgAbuseName:   Abuse Contact
OrgAbusePhone:  +31205354444 
OrgAbuseEmail:  abuse@ripe.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3850-ARIN

OrgTechHandle: RNO29-ARIN
OrgTechName:   RIPE NCC Operations
OrgTechPhone:  +31 20 535 4444 
OrgTechEmail:  hostmaster@ripe.net
OrgTechRef:    https://rdap.arin.net/registry/entity/RNO29-ARIN

Found a referral to whois.ripe.net.

inetnum:        192.33.87.0 - 192.33.110.255
netname:        ETH-NET
descr:          ETHZ, Swiss Federal Institute of Technology Zurich
descr:          Zurich, Switzerland
country:        CH
org:            ORG-ETHZ1-RIPE
admin-c:        HE688-RIPE
tech-c:         HE688-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         SWITCH-MNT
mnt-irt:        IRT-SWITCH-CERT
created:        2015-04-23T13:46:55Z
last-modified:  2016-04-14T09:40:09Z
source:         RIPE
sponsoring-org: ORG-SG2-RIPE

organisation:   ORG-ETHZ1-RIPE
org-name:       Federal Institute of Technology Zurich (ETHZ)
country:        CH
org-type:       OTHER
address:        Raemistrasse 101
address:        8092 Zurich
address:        Switzerland
admin-c:        AW1297-RIPE
tech-c:         HE688-RIPE
abuse-c:        HE688-RIPE
mnt-ref:        SWITCH-MNT
mnt-by:         SWITCH-MNT
created:        2009-11-09T12:44:22Z
last-modified:  2023-03-22T10:50:45Z
source:         RIPE # Filtered

role:           Hostmaster ETHZ
address:        ETH Zurich
address:        ID ICT-Networks
address:        CH-8092 Zurich
address:        SWITZERLAND
phone:          +41 44 6323555
admin-c:        AW1297-RIPE
tech-c:         AW1297-RIPE
nic-hdl:        HE688-RIPE
abuse-mailbox:  abuse@ethz.ch
mnt-by:         SWITCH-MNT
created:        2005-06-22T08:30:06Z
last-modified:  2017-11-30T09:36:41Z
source:         RIPE # Filtered

route:          192.33.90.0/23
descr:          ETH-NET4-5
origin:         AS559
mnt-by:         AS559-MNT
created:        2022-08-04T07:16:19Z
last-modified:  2022-08-04T07:16:19Z
source:         RIPE