ASN Lookup Tool

Chittagong Telecom Services Limited ctgtel.net BD BD 12 Routes

AS Data

AS58912

AS58912Chittagong Telecom Services Limited

AS Number 58912
AS Name CTSL-BD
Organization Chittagong Telecom Services Limited(org-ctsl1-ap)
Country BD
Website ctgtel.net
Number of IPv4 Routes 8
Number of IPv6 Routes 4
ASN type ISP
Registry APNIC
Date Allocated N/A

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Use ASN data for AS58912 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
45.124.15.0/24 256
103.25.82.0/24 256
2407:9ac0::/36 ~5×10²⁷
2407:9ac0:1000::/36 ~5×10²⁷
103.25.80.0/24 256
2407:9ac0:9000::/36 ~5×10²⁷
103.25.83.0/24 256
103.25.81.0/24 256
45.124.14.0/24 256
2407:9ac0:8000::/36 ~5×10²⁷

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS58368 - AS59391'

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:        6 Cordelia Street
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:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS58912'

% Abuse contact for 'AS58912' is 'info@ctgtel.net'

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 was validated on 2025-12-03
remarks:        info@ctgtel.net was validated on 2025-12-17
mnt-by:         MAINT-CTSL-BD
last-modified:  2025-12-17T03:54:31Z
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 was validated on 2025-12-03
remarks:        info@ctgtel.net was validated on 2025-12-17
abuse-mailbox:  info@ctgtel.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-17T03:54:56Z
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

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS139009 Windstream Communication Limited BD
AS139009 Windstream Communication Ltd BD
AS140684 Bangladesh Internet Exchange Trust BD
AS58717 Summit Communications Ltd BD
AS58717 Summit Communications Limited BD

Upstreams

AS Number Description Country
AS139009 Windstream Communication Ltd BD
AS58717 Summit Communications Limited BD

Contacts

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Frequently Asked Questions

ASN AS58912 is an Autonomous System Number used to identify a network for BGP internet routing.
AS58912 is listed under Chittagong Telecom Services Limited.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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