101.2.161.0/24

AS38592 · Chittagong Online Limited AS38592 AP

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Summary

Country	Bangladesh
Domain	colbd.com
ASN	AS38592
Parent Range	101.2.160.0/21
Registry	APNIC
ID	CTGONLINENET

WHOIS Details

inetnum:        101.2.160.0 - 101.2.167.255
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
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:  2020-06-22T05:41:19Z
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 2026-02-03
remarks:        mailadmin@colbd.com was validated on 2026-04-08
irt-nfy:        cto@colbd.com
mnt-by:         MAINT-BD-CTGONLINE
last-modified:  2026-04-08T14:08:59Z
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 2026-02-03
remarks:        mailadmin@colbd.com was validated on 2026-04-08
abuse-mailbox:  mailadmin@colbd.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-04-08T14:09:25Z
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:          101.2.160.0/21
descr:          CTGONLINENET Route Object
country:        BD
origin:         AS38592
mnt-routes:     MAINT-BD-CTGONLINE
mnt-by:         MAINT-BD-CTGONLINE
last-modified:  2010-12-13T06:59:04Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 101.2.161.0/24

Range	ASN	Company	Num of IPs
101.2.160.0/21	AS38592	Chittagong Online Limited.	2,048

Nearby Ranges

BGP prefixes that overlap with 101.2.0.0/16

Range	ASN	Company	Num of IPs
101.2.192.0/18	AS22616	Zscaler Australia Pty Ltd	16,384
101.2.128.0/19	AS18260	EHIME CATV CO.,LTD.	8,192
101.2.176.0/20	AS18001	Dialog Axiata Plc	4,096
101.2.160.0/21	AS38592	Chittagong Online Limited.	2,048
101.2.172.0/22	AS58519	CHINANET FUJIAN PROVINCE NETWORK	1,024
101.2.224.0/23	AS53813	Zscaler Sydney	512
101.2.232.0/23	AS53813	Zscaler Sydney	512
101.2.204.0/23	AS53813	Zscaler Tokyo	512
101.2.220.0/23	AS53813	Zscaler New Delhi	512
101.2.218.0/23	AS53813	Zscaler Melbourne	512
101.2.228.0/23	AS53813	Zscaler Sydney	512
101.2.234.0/23	AS53813	Zscaler Sydney	512
101.2.242.0/23	AS53813	Zscaler Hong Kong	512
101.2.236.0/23	AS53813	Zscaler Sydney	512
101.2.216.0/23	AS53813	Zscaler Melbourne	512
101.2.222.0/23	AS53813	Zscaler Sydney	512
101.2.226.0/23	AS53813	Zscaler Sydney	512
101.2.230.0/23	AS53813	Zscaler Sydney	512
101.2.244.0/23	AS53813	Zscaler Chennai	512
101.2.202.0/23	AS53813	Zscaler Tokyo	512
101.2.238.0/23	AS53813	Zscaler Sydney	512
101.2.250.0/24	AS53813	Zscaler Kuala Lumpur	256
101.2.193.0/24	AS53813	Zscaler Japan TYO4	256
101.2.246.0/24	AS53813	Zscaler Tokyo	256
101.2.201.0/24	AS53813	Zscaler Taiwan, Province of China TPE2	256
101.2.197.0/24	AS53813	Zscaler India BOM6	256
101.2.194.0/24	AS53813	Zscaler Australia SYD3	256
101.2.198.0/24	AS53813	Zscaler India HYD1	256
101.2.169.0/24	AS55707	Terra Networks Pty Ltd VPS Customers	256
101.2.200.0/24	AS53813	Zscaler Korea, Republic of SEL1	256
101.2.199.0/24	AS53813	Zscaler Japan OSA1	256
101.2.196.0/24	AS53813	Zscaler Australia MEL2	256
101.2.208.0/24	AS53813	Zscaler New Delhi	256
101.2.215.0/24	AS53813	Zscaler New Delhi	256
101.2.206.0/24	AS53813	Zscaler Tokyo	256
101.2.241.0/24	AS53813	Zscaler Singapore	256
101.2.240.0/24	AS53813	Zscaler New Delhi	256
101.2.168.0/24	AS55707	Terra Networks Pty Ltd	256
101.2.214.0/24	AS53813	Zscaler Melbourne	256
101.2.195.0/24	AS53813	Zscaler India MAA2	256
101.2.192.0/24	AS53813	Zscaler Singapore SIN4	256
101.2.209.0/24	AS53813	Zscaler Tokyo	256
101.2.207.0/24	AS53813	Zscaler Kolkata	256
101.2.247.0/24	AS53813	Zscaler Sydney	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

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

IP Address	ASN	Details
101.2.161.245	AS38592 Chittagong Online Limited AS38592 AP	`6.12ms` 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
1.4.163.40	AS23969 TOT Public Company Limited	`1.33ms` from Bangkok, TH
125.36.194.168	AS4837 CHINA UNICOM China169 Backbone	`5.03ms` from Beijing, CN
152.203.1.232	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`8.09ms` from Bogotá, CO
75.228.147.88	AS6167 Verizon Business	`18.08ms` from Boston, US
171.25.229.168	AS39923 Unix-Solutions BV	`0.60ms` from Brussels, BE
81.243.161.168	AS5432 Proximus NV	`2.47ms` from Brussels, BE
91.9.174.104	AS3320 Deutsche Telekom AG	`5.31ms` from Duesseldorf, DE
86.139.82.56	AS2856 British Telecommunications PLC	`2.21ms` from Erith, GB
23.218.227.200	AS20940 Akamai International B.V.	`0.44ms` from London, GB
5.68.33.152	AS5607 Sky UK Limited	`3.69ms` from London, GB
122.100.223.88	AS4609 Companhia de Telecomunicacoes de Macau SARL	`1.71ms` from Macau, MO
76.153.178.136	AS7922 Comcast Cable Communications, LLC	`5.35ms` from Miami, US
86.219.31.232	AS3215 Orange S.A.	`8.04ms` from Paris, FR
95.53.47.168	AS12389 PJSC Rostelecom	`17.45ms` from Saint Petersburg, RU
112.173.215.168	AS4766 Korea Telecom	`3.28ms` from Seoul, KR
58.107.157.56	AS4804 Microplex PTY LTD	`4.47ms` from Sydney, AU
60.222.231.40	AS4837 CHINA UNICOM China169 Backbone	`6.95ms` from Taiyuan, CN
20.238.231.104	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
75.71.26.216	AS7922 Comcast Cable Communications, LLC	`5.36ms` from Denver, US
121.131.167.24	AS4766 Korea Telecom	`1.44ms` from Incheon, KR
82.163.144.184	AS56329 Gigaclear Limited	`2.20ms` from London, GB
172.12.91.248	AS7018 AT&T Enterprises, LLC	`19.26ms` from Los Angeles, US
185.178.81.24	AS201453 Nostravant S.L.L.	`3.52ms` from Madrid, ES
94.32.178.104	AS8612 Tiscali Italia S.P.A.	`1.53ms` from Milan, IT
185.76.60.72	AS9009 M247 Europe SRL	`0.41ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f4 101.2.161.245

traceroute to 101.2.161.245 (101.2.161.245): 64 hops max, 52 byte packets

4 [] 103.151.196.99 4.821 ms

5 [AS38592] 101.2.161.245 6.054 ms

Measurement taken from

IPinfo ProbeNet in Dhaka, BD

On April 13th 2026

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