202.65.175.0/24

AS38592 · Chittagong Online Limited AS38592 AP

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Summary

Country	Bangladesh
Domain	colbd.com
ASN	AS38592
Parent Range	202.65.168.0/21
Registry	APNIC
ID	CTGONLINENET

WHOIS Details

inetnum:        202.65.168.0 - 202.65.175.255
netname:        CTGONLINENET
descr:          Chittagong Online Limited.
descr:          Internet Service Provider,
descr:          Arup Bhaban (2nd Floor),
descr:          107, Agrabad C/A,
descr:          Chittagong - 4100.
country:        BD
org:            ORG-COL2-AP
admin-c:        TA129-AP
admin-c:        AB248-AP
tech-c:         AB248-AP
abuse-c:        AC1804-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-BD-CTGONLINE
mnt-routes:     MAINT-BD-CTGONLINE
mnt-irt:        IRT-CTGONLINE-BD
last-modified:  2020-10-20T00:57:43Z
source:         APNIC

irt:            IRT-CTGONLINE-BD
address:        Chittagong Online Limited.
address:        IIUC Tower (14th Floor),
address:        1700/A, Plot-9, Sk. Mujib Road, Agrabad C/A,
address:        Chittagong-4100,
address:        Bangladesh.
e-mail:         irt@colbd.com
abuse-mailbox:  mailadmin@colbd.com
admin-c:        TA129-AP
admin-c:        AB248-AP
tech-c:         AB248-AP
auth:           # Filtered
remarks:        Timezone GMT+6
remarks:        irt@colbd.com was validated on 2025-07-30
remarks:        mailadmin@colbd.com was validated on 2025-09-23
irt-nfy:        cto@colbd.com
mnt-by:         MAINT-BD-CTGONLINE
last-modified:  2025-11-18T00:26:23Z
source:         APNIC

organisation:   ORG-COL2-AP
org-name:       Chittagong Online Limited.
org-type:       LIR
country:        BD
address:        Chittagong Online Limited.
address:        IIUC Tower (14th Floor),
address:        1700/A, Plot-9, Sk. Mujib Road,
address:        Agrabad C/A,
phone:          +880-23333-14447
fax-no:         +880-31-718186
e-mail:         irt@colbd.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:09Z
source:         APNIC

role:           ABUSE CTGONLINEBD
country:        ZZ
address:        Chittagong Online Limited.
address:        IIUC Tower (14th Floor),
address:        1700/A, Plot-9, Sk. Mujib Road, Agrabad C/A,
address:        Chittagong-4100,
address:        Bangladesh.
phone:          +000000000
e-mail:         irt@colbd.com
admin-c:        TA129-AP
admin-c:        AB248-AP
tech-c:         AB248-AP
nic-hdl:        AC1804-AP
remarks:        Generated from irt object IRT-CTGONLINE-BD
remarks:        irt@colbd.com was validated on 2025-07-30
remarks:        mailadmin@colbd.com was validated on 2025-09-23
abuse-mailbox:  mailadmin@colbd.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-23T16:36:11Z
source:         APNIC

person:         Aniruddha Barua
nic-hdl:        AB248-AP
abuse-mailbox:  mailadmin@colbd.com
e-mail:         cto@colbd.com
address:        Chittagong Online Limited.
address:        IIUC Tower (14th Floor),
address:        1700/A, Plot-9, Sk. Mujib Road, Agrabad C/A,
address:        Chittagong-4100,
address:        Bangladesh.
phone:          +880-23333-14447
phone:          +880-23333-17437
country:        BD
mnt-by:         MAINT-BD-CTGONLINE
last-modified:  2022-02-22T07:27:52Z
source:         APNIC

person:         Tahmid Anwar
nic-hdl:        TA129-AP
abuse-mailbox:  mailadmin@colbd.com
e-mail:         ceo@colbd.com
address:        Chittagong Online Limited.
address:        IIUC Tower (14th Floor),
address:        1700/A, Plot-9, Sk. Mujib Road, Agrabad C/A,
address:        Chittagong-4100,
address:        Bangladesh.
phone:          +880-23333-14447
phone:          +880-23333-17437
country:        BD
mnt-by:         MAINT-BD-CTGONLINE
last-modified:  2022-02-22T07:28:35Z
source:         APNIC

route:          202.65.168.0/21
descr:          CTGONLINENET Route Object
country:        BD
origin:         AS38592
notify:         cto@colbd.com
mnt-routes:     MAINT-BD-CTGONLINE
mnt-by:         MAINT-BD-CTGONLINE
last-modified:  2010-06-15T01:39:09Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 202.65.175.0/24

Range	ASN	Company	Num of IPs
202.65.168.0/21	AS38592	Chittagong Online Limited.	2,048

Nearby Ranges

BGP prefixes that overlap with 202.65.0.0/16

Range	ASN	Company	Num of IPs
202.65.64.0/19	AS38195	SUPERLOOP (AUSTRALIA) PTY LTD	8,192
202.65.32.0/19	AS10131	Telecom Cook Islands	8,192
202.65.208.0/20	AS9584	Diyixian.com Limited	4,096
202.65.176.0/20	AS18360	University of Santo Tomas	4,096
202.65.112.0/20	AS23951	PT Jembatan Citra Nusantara	4,096
202.65.192.0/20	AS9584	Diyixian.com Limited	4,096
202.65.240.0/21	AS4773	M1 LIMITED	2,048
202.65.168.0/21	AS38592	Chittagong Online Limited.	2,048
202.65.164.0/22	AS55872	BayCity Communications	1,024
202.65.162.0/23	AS55872	BayCity Communications	512
202.65.10.0/23	AS17641	MGH Infotech Ltd.	512
202.65.153.0/24	AS18229	IP Pool for F-Secure	256
202.65.142.0/24	AS150008	IP Pool for Cocanada Online	256
202.65.113.0/24	AS23951	INFRASTRUKTUR WIRELESS	256
202.65.144.0/24	AS150008	IP pool for CtrlS	256
202.65.240.0/24	AS4773	M1 Ltd	256
202.65.241.0/24	AS4773	M1 Ltd	256
202.65.242.0/24	AS4773	M1 Ltd	256
202.65.244.0/24	AS4773	M1 Ltd	256
202.65.246.0/24	AS4773	M1 Ltd	256
202.65.247.0/24	AS4773	M1 Ltd	256
202.65.131.0/24	AS18229	IP pool for CtrlS	256
202.65.140.0/24	AS18229	IP pool for CtrlS	256
202.65.139.0/24	AS18229	IP pool for CtrlS	256
202.65.141.0/24	AS18229	IP Pool for Hi Speed Internet Tirupathi	256
202.65.143.0/24	AS18229	IP Pool for Host 2	256
202.65.149.0/24	AS18229	IP pool for CtrlS	256
202.65.151.0/24	AS18229	IP Pool for CtrlS Retail Customers	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

77 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
202.65.175.76	AS38592 Chittagong Online Limited AS38592 AP	`4.00ms` from Dhaka, BD

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
97.231.13.200	AS6167 Verizon Business	`17.93ms` from Ashburn, US
73.149.197.232	AS7922 Comcast Cable Communications, LLC	`9.23ms` from Boston, US
105.69.244.168	AS36884 Wana Corporate	`8.51ms` from Casablanca, MA
129.230.188.24	AS15753 BP International Ltd	`1.72ms` from Chicago, US
72.249.16.184	AS17378 TierPoint, LLC	`0.74ms` from Dallas, US
204.225.18.24	AS36103 Central Utah Telephone, Inc.	`5.56ms` from Draper, US
197.103.2.24	AS3741 Dimension Data	`0.53ms` from Johannesburg, ZA
130.222.20.104	AS245 Planning Research Corporation	`0.06ms` from Manassas, US
4.26.37.24	AS3356 Level 3 Parent, LLC	`0.65ms` from New York City, US
35.143.187.216	AS33363 Charter Communications, Inc	`9.65ms` from Orlando, US
143.95.251.232	AS46606 Unified Layer	`1.93ms` from Salt Lake City, US
118.32.131.120	AS4766 Korea Telecom	`1.74ms` from Seoul, KR
115.1.222.88	AS4766 Korea Telecom	`1.93ms` from Seoul, KR
146.0.73.72	AS57043 HOSTKEY B.V.	`0.26ms` from Amsterdam, NL
190.137.11.8	AS7303 Telecom Argentina S.A.	`5.00ms` from Asuncion, PY
141.237.89.24	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`5.33ms` from Athens, GR
104.53.228.56	AS7018 AT&T Enterprises, LLC	`12.98ms` from Atlanta, US
34.3.196.168	AS214609 Google Cloud EMEA Ltd	`0.50ms` from Berlin, DE
72.49.201.24	AS6181 Cincinnati Bell Telephone Company LLC	`1.49ms` from Cincinnati, US
59.178.121.168	AS9829 National Internet Backbone	`5.89ms` from Delhi, IN
125.88.168.120	AS4134 CHINANET-BACKBONE	`1.55ms` from Guangzhou, CN
121.64.214.72	AS3786 LG DACOM Corporation	`2.97ms` from Incheon, KR
81.104.164.72	AS5089 Virgin Media Limited	`9.23ms` from London, GB
2.216.203.120	AS5607 Sky UK Limited	`10.75ms` from London, GB
178.121.109.88	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`1.42ms` from Minsk, BY

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 202.65.175.47

traceroute to 202.65.175.47 (202.65.175.47): 64 hops max, 52 byte packets

3 [] 103.151.196.99 4.072 ms

4 [AS38592] 202.65.175.47 4.387 ms

Measurement taken from

IPinfo ProbeNet in Dhaka, BD

On January 18th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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