Whois results:

inetnum:        193.11.20.0 - 193.11.20.255
netname:        OPTOSUNET-2
descr:          Core network links in OptoSUNET
country:        SE
admin-c:        BJN1-RIPE
tech-c:         PNI2-RIPE
tech-c:         HE15
status:         ASSIGNED PA
mnt-by:         SUNET-MNT
mnt-lower:      SUNET-MNT
mnt-domains:    SUNET-MNT
mnt-routes:     SUNET-MNT
source:         RIPE # Filtered

person:         Borje Josefsson
address:        Computer Support Centre
address:        Lulea  University
address:        S-971 87 Lulea
address:        Sweden
phone:          +46 920 91262
fax-no:         +46 920 72272
mnt-by:         SUNET-MNT
nic-hdl:        BJN1-RIPE
source:         RIPE # Filtered

person:         Havard Eidnes
address:        UNINETT AS
address:        N-7465 Trondheim
address:        Norway
phone:          +47 73 55 79 35
fax-no:         +47 73 55 79 01
nic-hdl:        HE15
mnt-by:         UNINETT-MNT
source:         RIPE # Filtered

person:         Per Nihlen
address:        NORDUnet A/S
address:        S-113 53  STOCKHOLM
address:        Sweden
phone:          +46 8 441 88 10
fax-no:         +46 8 20 78 60
nic-hdl:        PNI2-RIPE
mnt-by:         NORDUNET-MNT
source:         RIPE # Filtered


route:          193.11.0.0/16
descr:          SUNET C Aggregate (PA)
origin:         AS1653
mnt-by:         SUNET-MNT
source:         RIPE # Filtered