AS58912 - CTSL-BD - Chittagong Telecom Services Limited, BD

Bangladesh
AS Number
AS58912
AS Name
CTSL-BD
Org Name
Chittagong Telecom Services Ltd
Country / Region
Bangladesh
Registry

apnic

RegDate

Updated

2011-08-10T06:21:41Z

AS58912 Looking Glass
https://bgp.he.net/AS58912#_graph4
IPv4Prefixes

8

IPv6Prefixes

4

IPv4 NUMs

2,048

IPv6 NUMs(/64)

1,073,741,824

CIDR Description IP Num
45.124.12.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 256
45.124.13.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 256
45.124.14.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 256
45.124.15.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 256
103.25.80.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Ltd. 1837, Sk. Mujib Road, Progressive Tower, 1st Floor, Agrabad Badamtoli, Chittagong-4100. 256
103.25.81.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Ltd. 1837, Progressive Tower, 1st Floor, Sk. Mujib Road, Agrabad Badamtoli, Chittagong-4100. 256
103.25.82.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Ltd. 1837, Progressive Tower, 1st Floor, Sk. Mujib Road, Agrabad Badamtoli, Chittagong-4100. 256
103.25.83.0/24
IRR Valid
CTSL-BD Chittagong Telecom Services Ltd. 1837, Progressive Tower, 1st Floor, Sk. Mujib Road, Agrabad Badamtoli, Chittagong-4100. 256
CIDR Description IP NUMs(prefix /64)
2407:9ac0::/36
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 268435456
2407:9ac0:1000::/36
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 268435456
2407:9ac0:8000::/36
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 268435456
2407:9ac0:9000::/36
IRR Valid
CTSL-BD Chittagong Telecom Services Limited 268435456
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS58717 SUMMITCOMMUNICATIONS-BD - Summit Communications Limited, BD Bangladesh 11,776 17,179,869,184 IPv4 IPv4 IPv6 IPv6
AS139009 WSCL-AS-AP - Windstream Communication Ltd, BD Bangladesh 7,424 4,295,032,832 IPv4 IPv4 IPv6 IPv6

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
Bangladesh ISPAB-NIX - Bangladesh Internet Service Provider Internet Exchange Trust 103.161.217.206 2407:840:1:800::f9 10 Gbps 2025-01-26 07:25:09
Bangladesh BDIX - Bangladesh Internet Exchange Trust 103.151.196.77 2001:df3:d680::77 10 Gbps 2025-01-26 07:25:09

Private Peering Facilities

Country / Region Name City Website Updated

Whois Record

as-block AS58368 - AS59391

as-block
descr
APNIC ASN block
remarks
These AS numbers are further assigned by APNIC
to APNIC members and end-users in the APNIC region
admin-c
HM20-AP
tech-c
HM20-AP
mnt-by
APNIC-HM
mnt-lower
APNIC-HM
last-modified
2011-08-10T06:21:41Z
source
APNIC

role APNIC Hostmaster

role
APNIC Hostmaster
address
PO Box 3646
South Brisbane
QLD 4101
country
AU
phone
+61 7 3858 3100
fax-no
+61 7 3858 3199
e-mail
helpdesk@apnic.net
admin-c
AMS11-AP
tech-c
AH256-AP
nic-hdl
HM20-AP
remarks
Administrator for APNIC
notify
hostmaster@apnic.net
mnt-by
MAINT-APNIC-AP
last-modified
2026-08-26T00:40:00Z
source
APNIC

aut-num AS58912

aut-num
as-name
CTSL-BD
descr
Chittagong Telecom Services Ltd
country
BD
org
ORG-CTSL1-AP
admin-c
CTSL2-AP
tech-c
CTSL2-AP
abuse-c
AC2149-AP
mnt-lower
MAINT-CTSL-BD
mnt-routes
MAINT-CTSL-BD
mnt-by
APNIC-HM
mnt-irt
IRT-CTSL-BD
last-modified
2020-10-05T22:46:12Z
source
APNIC

irt IRT-CTSL-BD

irt
IRT-CTSL-BD
address
Chittagong Telecom Services Ltd.
Progressive Tower, 1st Floor, 1837, Sk. Mujib Road, Agrabad, Chittagong-4100.
e-mail
azim@ctgtel.net
abuse-mailbox
info@ctgtel.net
admin-c
CTSL2-AP
tech-c
CTSL2-AP
auth
# Filtered
remarks
azim@ctgtel.net is invalid
info@ctgtel.net is invalid
mnt-by
MAINT-CTSL-BD
last-modified
2026-07-08T13:11:54Z
source
APNIC

organisation ORG-CTSL1-AP

organisation
ORG-CTSL1-AP
org-name
Chittagong Telecom Services Limited
org-type
LIR
country
BD
address
Progressive Tower (1st Floor)
1837, Sheikh Mujib Road,
Agrabad
phone
+8809638660066
e-mail
info@ctgtel.net
mnt-ref
APNIC-HM
mnt-by
APNIC-HM
last-modified
2023-12-03T13:02:02Z
source
APNIC

role ABUSE CTSLBD

role
ABUSE CTSLBD
country
ZZ
address
Chittagong Telecom Services Ltd.
Progressive Tower, 1st Floor, 1837, Sk. Mujib Road, Agrabad, Chittagong-4100.
phone
+000000000
e-mail
azim@ctgtel.net
admin-c
CTSL2-AP
tech-c
CTSL2-AP
nic-hdl
AC2149-AP
remarks
Generated from irt object IRT-CTSL-BD
azim@ctgtel.net is invalid
info@ctgtel.net is invalid
abuse-mailbox
info@ctgtel.net
mnt-by
APNIC-ABUSE
last-modified
2026-07-08T13:13:50Z
source
APNIC

role Chittagong Telecom Services Limited administrator

role
Chittagong Telecom Services Limited administrator
address
CTGTEL, Progressive Tower (1st Floor), 1837, Sheikh Mujib Road, Agrabad, Chittagong
country
BD
phone
+88 01713428098
fax-no
+88 01713428098
e-mail
azim@ctgtel.net
admin-c
CTSL2-AP
tech-c
CTSL2-AP
nic-hdl
CTSL2-AP
mnt-by
MAINT-CTSL-BD
last-modified
2023-12-03T12:32:46Z
source
APNIC
 

as-block:       AS58368 - AS59391
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2011-08-10T06:21:41Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC



aut-num:        AS58912
as-name:        CTSL-BD
descr:          Chittagong Telecom Services Ltd
country:        BD
org:            ORG-CTSL1-AP
admin-c:        CTSL2-AP
tech-c:         CTSL2-AP
abuse-c:        AC2149-AP
mnt-lower:      MAINT-CTSL-BD
mnt-routes:     MAINT-CTSL-BD
mnt-by:         APNIC-HM
mnt-irt:        IRT-CTSL-BD
last-modified:  2020-10-05T22:46:12Z
source:         APNIC

irt:            IRT-CTSL-BD
address:        Chittagong Telecom Services Ltd.
address:        Progressive Tower, 1st Floor, 1837, Sk. Mujib Road, Agrabad, Chittagong-4100.
e-mail:         azim@ctgtel.net
abuse-mailbox:  info@ctgtel.net
admin-c:        CTSL2-AP
tech-c:         CTSL2-AP
auth:           # Filtered
remarks:        azim@ctgtel.net is invalid
remarks:        info@ctgtel.net is invalid
mnt-by:         MAINT-CTSL-BD
last-modified:  2026-07-08T13:11:54Z
source:         APNIC

organisation:   ORG-CTSL1-AP
org-name:       Chittagong Telecom Services Limited
org-type:       LIR
country:        BD
address:        Progressive Tower (1st Floor)
address:        1837, Sheikh Mujib Road,
address:        Agrabad
phone:          +8809638660066
e-mail:         info@ctgtel.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-12-03T13:02:02Z
source:         APNIC

role:           ABUSE CTSLBD
country:        ZZ
address:        Chittagong Telecom Services Ltd.
address:        Progressive Tower, 1st Floor, 1837, Sk. Mujib Road, Agrabad, Chittagong-4100.
phone:          +000000000
e-mail:         azim@ctgtel.net
admin-c:        CTSL2-AP
tech-c:         CTSL2-AP
nic-hdl:        AC2149-AP
remarks:        Generated from irt object IRT-CTSL-BD
remarks:        azim@ctgtel.net is invalid
remarks:        info@ctgtel.net is invalid
abuse-mailbox:  info@ctgtel.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-07-08T13:13:50Z
source:         APNIC

role:           Chittagong Telecom Services Limited administrator
address:        CTGTEL, Progressive Tower (1st Floor), 1837, Sheikh Mujib Road, Agrabad, Chittagong
country:        BD
phone:          +88 01713428098
fax-no:         +88 01713428098
e-mail:         azim@ctgtel.net
admin-c:        CTSL2-AP
tech-c:         CTSL2-AP
nic-hdl:        CTSL2-AP
mnt-by:         MAINT-CTSL-BD
last-modified:  2023-12-03T12:32:46Z
source:         APNIC