AS201042 - SD1-Telecom - SD1-Telecom SRL, BE

Belgium
AS Number
AS201042
AS Name
SD1-Telecom
Org Name
SD1-Telecom SRL
Country / Region
Belgium
Registry

ripe

RegDate

Updated

2026-06-17T08:25:01Z

AS201042 Looking Glass
IPv4Prefixes

6

IPv6Prefixes

1

IPv4 NUMs

1,536

IPv6 NUMs(/64)

34,359,738,368

CIDR Description IP Num
81.2.148.0/24
IRR Valid
Cogent Communications Group LLC 256
154.52.36.0/24
IRR Valid
SD1 Telecom 256
154.52.49.0/24
IRR Valid
PSINet, Inc. 256
154.52.51.0/24
IRR InValid
PSINet, Inc. 256
154.52.52.0/24
IRR InValid
PSINet, Inc. 256
194.13.142.0/24
IRR Valid
SD1-Telecom SRL 256
CIDR Description IP NUMs(prefix /64)
2a13:4840::/29
IRR Valid
SD1-Telecom SRL 34359738368
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36,233,472 215,834,689,537 IPv4 IPv4
AS1239 COGENT-1239 - Cogent Communications, LLC, US United States 0 210,729,631,744 IPv4 IPv4
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 411,392 77,326,778,368 IPv4 IPv4 IPv6 IPv6
AS29467 LuxNetwork - LUXNETWORK S.A., LU Luxembourg 10,752 8,589,934,592 IPv4 IPv4 IPv6 IPv6

Whois Record

as-block AS200537 - AS202347

as-block
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
2026-06-17T08:25:01Z
last-modified
2026-06-17T08:25:01Z
source
RIPE

aut-num AS201042

aut-num
as-name
SD1-Telecom
remarks
==============================
UPSTREAMS
==============================
==============================
Routing Policy
==============================
We deny prefixes longer than /24 (IPv4) and /48 (IPv6) on all our
BGP sessions. We also filter default routes and bogus networks
(RFC1918, RFC5735, Former Class D/E, documentation prefix, 6bone,
etc...)
==============================
import
from AS12956 accept ANY
from AS174 accept ANY
from AS1299 accept ANY
from AS29467 accept ANY
export
to AS12956 announce AS201042:AS-SD1TEL
to AS174 announce AS201042:AS-SD1TEL
to AS1299 announce AS201042:AS-SD1TEL
to AS29467 announce AS201042:AS-SD1TEL
org
ORG-SS1287-RIPE
admin-c
RM22750-RIPE
tech-c
RM22750-RIPE
MA631-RIPE
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
SD1TEL-MNT
created
2022-11-30T08:24:43Z
last-modified
2025-08-07T17:01:48Z
source
RIPE

organisation ORG-SS1287-RIPE

organisation
ORG-SS1287-RIPE
org-name
SD1-Telecom SRL
country
BE
reg-nr
0746.401.637
org-type
LIR
address
Drève du Bois de Mai, 7
1428
Braine-L'Alleud
BELGIUM
phone
+32 2 342 89 00
e-mail
sales@sd1.be
admin-c
RM22750-RIPE
tech-c
RM22750-RIPE
abuse-c
AR68624-RIPE
mnt-by
RIPE-NCC-HM-MNT
SD1TEL-MNT
created
2022-07-04T07:51:52Z
last-modified
2026-05-13T07:03:05Z
source
RIPE
mnt-ref
SD1TEL-MNT

role RIPE Maintainer

role
RIPE Maintainer
address
BELGIUM
Braine-L'Alleud
1428
Drève du Bois de Mai, 7
phone
+32 2 342 89 00
e-mail
ripe@sd1.be
nic-hdl
RM22750-RIPE
mnt-by
SD1TEL-MNT
created
2022-07-04T07:51:51Z
last-modified
2023-01-06T10:58:06Z
source
RIPE

person Marc Alonso

person
Marc Alonso
notify
contact@virma.co
address
VIRMA CONSULTING SARL
7 route de Kehlen
L-8235 MAMER
phone
+352
nic-hdl
MA631-RIPE
mnt-by
MALONSO-MNT
created
1970-01-01T00:00:00Z
last-modified
2025-08-05T05:40:50Z
source
RIPE
 

as-block:       AS200537 - AS202347
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:        2026-06-17T08:25:01Z
last-modified:  2026-06-17T08:25:01Z
source:         RIPE



aut-num:        AS201042
as-name:        SD1-Telecom
remarks:        ==============================
remarks:        UPSTREAMS
remarks:        ==============================
import:         from AS12956 accept ANY
export:         to AS12956 announce AS201042:AS-SD1TEL
import:         from AS174 accept ANY
export:         to AS174 announce AS201042:AS-SD1TEL
import:         from AS1299 accept ANY
export:         to AS1299 announce AS201042:AS-SD1TEL
import:         from AS29467 accept ANY
export:         to AS29467 announce AS201042:AS-SD1TEL
remarks:        ==============================
remarks:        Routing Policy
remarks:        ==============================
remarks:        We deny prefixes longer than /24 (IPv4) and /48 (IPv6) on all our
remarks:        BGP sessions. We also filter default routes and bogus networks
remarks:        (RFC1918, RFC5735, Former Class D/E, documentation prefix, 6bone,
remarks:        etc...)
remarks:        ==============================
org:            ORG-SS1287-RIPE
admin-c:        RM22750-RIPE
tech-c:         RM22750-RIPE
tech-c:         MA631-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SD1TEL-MNT
created:        2022-11-30T08:24:43Z
last-modified:  2025-08-07T17:01:48Z
source:         RIPE

organisation:   ORG-SS1287-RIPE
org-name:       SD1-Telecom SRL
country:        BE
reg-nr:         0746.401.637
org-type:       LIR
address:        Drève du Bois de Mai, 7
address:        1428
address:        Braine-L'Alleud
address:        BELGIUM
phone:          +32 2 342 89 00
e-mail:         sales@sd1.be
admin-c:        RM22750-RIPE
tech-c:         RM22750-RIPE
abuse-c:        AR68624-RIPE
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SD1TEL-MNT
created:        2022-07-04T07:51:52Z
last-modified:  2026-05-13T07:03:05Z
source:         RIPE
mnt-ref:        SD1TEL-MNT

role:           RIPE Maintainer
address:        BELGIUM
address:        Braine-L'Alleud
address:        1428
address:        Drève du Bois de Mai, 7
phone:          +32 2 342 89 00
e-mail:         ripe@sd1.be
nic-hdl:        RM22750-RIPE
mnt-by:         SD1TEL-MNT
created:        2022-07-04T07:51:51Z
last-modified:  2023-01-06T10:58:06Z
source:         RIPE

person:         Marc Alonso
notify:         contact@virma.co
address:        VIRMA CONSULTING SARL
address:        7 route de Kehlen
address:        L-8235 MAMER
phone:          +352
nic-hdl:        MA631-RIPE
mnt-by:         MALONSO-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2025-08-05T05:40:50Z
source:         RIPE