192.121.104.0/24

NetRange:       192.121.0.0 - 192.121.255.255
CIDR:           192.121.0.0/16
NetName:        RIPE-ERX-192-121-0-0
NetHandle:      NET-192-121-0-0-1
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/192.121.0.0

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:        192.121.104.0 - 192.121.104.255
netname:        SE-TEXTTALK
descr:          Textalk AB
org:            ORG-ABUS596-RIPE
country:        SE
admin-c:        LAGU2-RIPE
tech-c:         LAGU2-RIPE
status:         LEGACY
mnt-by:         RESILANS-MNT
mnt-lower:      RESILANS-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2014-05-28T12:57:11Z
source:         RIPE # Filtered

organisation:   ORG-ABUS596-RIPE
org-name:       Textalk AB
org-type:       OTHER
address:        Krokslatts fabriker 12
address:        SE-431 37 Molndal
address:        Sweden
abuse-c:        ABUS2097-RIPE
mnt-ref:        RESILANS-MNT
mnt-by:         RESILANS-MNT
created:        2013-03-14T13:50:07Z
last-modified:  2016-01-21T11:53:27Z
source:         RIPE # Filtered

person:         Lars Gustavsson
address:        Textalk AB
address:        Krokslatts fabriker 12
address:        S-431 37 Molndal
address:        Sweden
phone:          +46 31 87 29 20
nic-hdl:        LAGU2-RIPE
mnt-by:         RESILANS-MNT
created:        2005-09-29T14:19:57Z
last-modified:  2008-02-14T18:55:53Z
source:         RIPE # Filtered

route:          192.121.104.0/24
descr:          SE-TEXTTALK
descr:          In case of improper use originating from our network,
descr:          please mail customer or abuse@swip.net
origin:         AS1257
mnt-by:         AS1257-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:33:46Z
source:         RIPE # Filtered