202.65.173.0/24

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 202.65.173.0/24

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

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

IP Address	ASN	Details
202.65.173.37	AS38592 Chittagong Online Limited AS38592 AP	`3.83ms` 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
3.94.233.104	AS14618 Amazon.com, Inc.	`0.58ms` from Ashburn, US
216.165.155.8	AS4181 TDS TELECOM	`4.07ms` from Chicago, US
18.195.204.152	AS16509 Amazon.com, Inc.	`0.27ms` from Frankfurt am Main, DE
134.245.150.120	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`3.34ms` from Hamburg, DE
66.75.79.104	AS20001 Charter Communications Inc	`7.47ms` from Honolulu, US
180.101.249.24	AS134756 CHINANET Nanjing Jishan IDC network	`6.36ms` from Huai'an, CN
176.37.144.72	AS39608 Lanet Network Ltd	`0.51ms` from Kyiv, UA
20.204.148.232	AS8075 Microsoft Corporation	`0.15ms` from Lohogaon, IN
86.165.225.168	AS2856 British Telecommunications PLC	`3.64ms` from London, GB
213.35.43.8	AS9193 ConXionEU	`1.04ms` from London, GB
69.237.7.56	AS7018 AT&T Enterprises, LLC	`1.82ms` from Los Angeles, US
23.48.156.152	AS16625 Akamai Technologies, Inc.	`0.41ms` from Mumbai, IN
88.166.225.200	AS12322 Free SAS	`4.86ms` from Paris, FR
31.38.225.120	AS5410 Bouygues Telecom SA	`11.93ms` from Paris, FR
20.163.19.232	AS8075 Microsoft Corporation	`0.80ms` from Phoenix, US
4.151.144.120	AS8075 Microsoft Corporation	`0.22ms` from San Antonio, US
4.220.175.200	AS8075 Microsoft Corporation	`7.96ms` from Sandefjord, NO
76.106.103.184	AS7922 Comcast Cable Communications, LLC	`10.13ms` from Secaucus, US
210.182.190.232	AS131878 HYUNDAICARD CO.	`1.61ms` from Seoul, KR
39.124.15.56	AS9318 SK Broadband Co Ltd	`2.07ms` from Seoul, KR
175.105.69.40	AS10013 FreeBit Co.,Ltd.	`8.20ms` from Tokyo, JP
3.115.208.248	AS16509 Amazon.com, Inc.	`0.19ms` from Tokyo, JP
122.135.94.8	AS2518 BIGLOBE Inc.	`15.13ms` from Tokyo, JP
178.112.28.136	AS25255 ==> TELE2 AUSTRIA <==	`10.82ms` from Vienna, AT
87.203.0.184	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`2.13ms` from Athens, GR

Traceroute

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

traceroute -a -n -q1 -f6 202.65.173.214

traceroute to 202.65.173.214 (202.65.173.214): 64 hops max, 52 byte packets

6 [AS38592] 202.65.173.214 4.062 ms

Measurement taken from

IPinfo ProbeNet in Dhaka, BD

On December 28th 2025

What are IP address ranges?

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