131.224.0.0/16

NetRange:       131.224.0.0 - 131.224.255.255
CIDR:           131.224.0.0/16
NetName:        RIPE-ERX-131-224-0-0
NetHandle:      NET-131-224-0-0-1
Parent:         NET131 (NET-131-0-0-0-0)
NetType:        Early Registrations, Transferred to RIPE NCC
OriginAS:       
Organization:   RIPE Network Coordination Centre (RIPE)
RegDate:        2004-02-04
Updated:        2004-02-04
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/131.224.0.0

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:        131.224.0.0 - 131.224.255.255
netname:        RIVMNET
country:        NL
remarks:        For general abuse like spam use the address
remarks:        Peter.Berndsen@rivm.nl
remarks:        For security related contacts use the address
remarks:        cert@SURFnet.nl
org:            ORG-RVVE1-RIPE
status:         LEGACY
admin-c:        PB2064-RIPE
tech-c:         NB1136-RIPE
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         SN-LIR-MNT
mnt-irt:        irt-SURFcert
created:        1970-01-01T00:00:00Z
last-modified:  2020-11-16T17:42:47Z
source:         RIPE
sponsoring-org: ORG-Sb3-RIPE

organisation:   ORG-RVVE1-RIPE
org-name:       Rijksinstituut voor Volksgezondheid en Milieuhygiene
country:        NL
org-type:       OTHER
address:        P.O. Box 1
address:        NL-3720 BA Bilthoven
address:        The Netherlands
phone:          +31 30 2742456
admin-c:        PB2064-RIPE
tech-c:         NB1136-RIPE
mnt-by:         SN-LIR-MNT
mnt-ref:        SN-LIR-MNT
abuse-c:        SNS1-RIPE
created:        2015-05-07T09:58:40Z
last-modified:  2022-12-01T17:31:36Z
source:         RIPE # Filtered

person:         Nico Blokhuijzen
address:        Rijksinstituut voor Volksgezondheid en Milieuhygiene
address:        P.O. Box 1
address:        NL-3720 BA Bilthoven
address:        The Netherlands
phone:          +31 30 2742456
nic-hdl:        NB1136-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2016-04-05T17:54:16Z
mnt-by:         RIPE-NCC-LOCKED-MNT
source:         RIPE # Filtered

person:         Peter Berndsen
address:        Rijksinstituut voor Volksgezondheid en Milieuhygiene
address:        P.O. Box 1
address:        NL-3720 BA Bilthoven
phone:          +31 30 2742961
fax-no:         +31 30 2742971
nic-hdl:        PB2064-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2020-06-04T12:33:46Z
source:         RIPE # Filtered
mnt-by:         SN-LIR-MNT

route:          131.224.0.0/16
descr:          RIVMNET
origin:         AS1103
mnt-by:         AS1103-MNT
created:        2002-03-21T15:59:37Z
last-modified:  2002-03-21T15:59:37Z
source:         RIPE