AS Number
AS204013
AS Name
NRB
Org Name
Network Research Belgium S.A.
Country
Belgium
Registry

ripe

RegDate

Updated

2026-03-05T15:29:31Z

AS204013 Looking Glass
IPv4Prefixes

18

IPv6Prefixes

2

IPv4 NUMs

8,192

IPv6 NUMs(/64)

4,294,967,296

8,192 IPv4 Addresses
CIDR Description IP Num
217.117.32.0/24
IRR InValid
NRB 256
217.117.32.0/20
IRR InValid
NRB 4096
217.117.32.0/19
IRR InValid
Network Research Belgium S.A. 8192
217.117.34.0/24
IRR InValid
NRB 256
217.117.36.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.37.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.38.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.39.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.40.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.41.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.43.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.44.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.46.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.48.0/20
IRR InValid
NRB 4096
217.117.50.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.56.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.61.0/24
IRR InValid
Network Research Belgium S.A. 256
217.117.63.0/24
IRR InValid
Network Research Belgium S.A. 256
CIDR Description IP NUMs(prefix /64)
2a02:7100::/32
IRR InValid
Network Research Belgium S.A. 4294967296
2a02:7100:ffff::/48
IRR InValid
Network Research Belgium S.A. 65536
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36,269,568 215,834,755,073 IPv4 IPv4 IPv6 IPv6
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 424,192 77,326,843,904 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS12942 NRB-AS - Network Research Belgium S.A., BE Belgium 8,192 4,294,967,296 IPv6 IPv6
as-block:       AS203940 - AS205662
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE



aut-num:        AS204013
as-name:        NRB
org:            ORG-NRB1-RIPE
import:         from AS3356 accept ANY
import:         from AS174 accept ANY
export:         to AS3356 announce AS204013
export:         to AS174 announce AS204013
import:         from AS1299 accept ANY
export:         to AS1299 announce AS204013
admin-c:        NRB1-RIPE
tech-c:         NRB1-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         NRB-MNT
created:        2025-11-05T13:37:19Z
last-modified:  2026-04-21T10:15:10Z
source:         RIPE

organisation:   ORG-NRB1-RIPE
org-name:       Network Research Belgium S.A.
country:        BE
reg-nr:         0430.502.430
org-type:       LIR
address:        Seconde Avenue, 65
                Parc Industriel des Hauts Sarts
address:        4040
address:        Herstal
address:        BELGIUM
phone:          +32 4 2497498
fax-no:         +32 4 2481170
e-mail:         [email protected]
abuse-c:        AR14189-RIPE
admin-c:        NRB1-RIPE
admin-c:        SG2027-RIPE
admin-c:        JC445-RIPE
mnt-ref:        NRB-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         NRB-MNT
created:        2004-04-17T11:00:35Z
last-modified:  2026-05-13T07:21:54Z
source:         RIPE

role:           NRB LIR Staff
remarks:        **************************************
remarks:        FOR ABUSE, PLEASE USE
remarks:        [email protected]
remarks:        AND NOT THE TECHNICIAN'S ADDRESSES
remarks:        **************************************
org:            ORG-NRB1-RIPE
address:        Network Research Belgium
address:        Parc Industriel des Hauts-Sarts
address:        B-4040 Herstal
address:        Belgium
phone:          +32 4 249 76 60
fax-no:         +32 4 249 78 04
e-mail:         [email protected]
remarks:        trouble:      [email protected]
admin-c:        JC445-RIPE
admin-c:        BD936-RIPE
admin-c:        SG2027-RIPE
tech-c:         JC445-RIPE
tech-c:         BD936-RIPE
tech-c:         SG2027-RIPE
nic-hdl:        NRB1-RIPE
notify:         [email protected]
mnt-by:         NRB-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2008-06-18T13:55:44Z
source:         RIPE