203.112.78.0/24

AS38031 · OptiMax Communication Ltd.

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Summary

Country	Bangladesh
Domain	optimaxbd.net
ASN	AS38031
Parent Range	203.112.72.0/21
Registry	APNIC
ID	CABLE-MODEM-ARRIS-CMTS

WHOIS Details

inetnum:        203.112.78.0 - 203.112.78.255
netname:        Cable-Modem-Arris-CMTS
descr:          Md. Emdadul Hoque Molla
country:        BD
admin-c:        ONA10-AP
tech-c:         ONA10-AP
abuse-c:        AO231-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-BD-OPTIMAX
mnt-irt:        IRT-OPTIMAX-BD
last-modified:  2021-01-20T23:01:18Z
source:         APNIC

irt:            IRT-OPTIMAX-BD
address:        OptiMax Communication Ltd
address:        House-6, Road-28,Block-K
address:        Banani, Dhaka-1213
address:        Bangladesh
phone:          +8801711532496
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        ONA10-AP
tech-c:         ONA10-AP
auth:           # Filtered
remarks:        [email protected]
remarks:        [email protected]
remarks:        [email protected]
remarks:        [email protected]
remarks:        [email protected] was validated on 2025-08-19
mnt-by:         MAINT-BD-OPTIMAX
last-modified:  2025-11-18T00:26:32Z
source:         APNIC

role:           ABUSE OPTIMAXBD
country:        ZZ
address:        OptiMax Communication Ltd
address:        House-6, Road-28,Block-K
address:        Banani, Dhaka-1213
address:        Bangladesh
phone:          +8801711532496
e-mail:         [email protected]
admin-c:        ONA10-AP
tech-c:         ONA10-AP
nic-hdl:        AO231-AP
remarks:        Generated from irt object IRT-OPTIMAX-BD
remarks:        [email protected] was validated on 2025-08-19
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-19T16:21:55Z
source:         APNIC

role:           Optimax network administrator
address:        House-06, Road-28, Block-K, Banani
country:        BD
phone:          +88-02-8853356
e-mail:         [email protected]
admin-c:        ONA10-AP
tech-c:         ONA10-AP
nic-hdl:        ONA10-AP
mnt-by:         MAINT-BD-OPTIMAX
last-modified:  2017-01-04T07:38:23Z
source:         APNIC

route:          203.112.78.0/24
origin:         AS38031
descr:          OptiMax Communication Ltd House-06, Road-28, Block-K, Banani
mnt-by:         MAINT-BD-OPTIMAX
last-modified:  2019-10-19T10:59:21Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.112.78.0/24

Range	ASN	Company	Num of IPs
203.112.72.0/21	AS38031	OptiMax COmmunication Ltd	2,048

Nearby Ranges

BGP prefixes that overlap with 203.112.0.0/16

Range	ASN	Company	Num of IPs
203.112.224.0/19	AS4637	Telstra Global Internet Services Network Blocks	8,192
203.112.192.0/19	AS45588	Internet Access & Telecom Carrier Service Provider.	8,192
203.112.160.0/19	AS9226	1-NET ISP Services Network.	8,192
203.112.32.0/19	AS7522	STNet, Incorporated	8,192
203.112.0.0/19	AS4685	ASAHI Net,Inc.	8,192
203.112.192.0/19	AS17494	Internet Access & Telecom Carrier Service Provider.	8,192
203.112.136.0/21	AS17439	Netmagic IT Services Pvt Ltd	2,048
203.112.72.0/21	AS38031	OptiMax COmmunication Ltd	2,048
203.112.64.0/21	AS2907	Chikushi Jogakuen University Network,	2,048
203.112.132.0/22	AS140641	YOTTA NETWORK SERVICES PRIVATE LIMITED	1,024
203.112.156.0/22	AS140641	YOTTA NETWORK SERVICES PRIVATE LIMITED	1,024
203.112.77.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.79.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.76.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.75.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.231.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
203.112.235.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
203.112.236.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
203.112.237.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
203.112.74.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.73.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.72.0/24	AS38031	Md. Emdadul Hoque Molla	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
134.166.74.8	AS668 United States Department of Defense (DoD)	`0.61ms` from Atlanta, US
190.137.60.40	AS7303 Telecom Argentina S.A.	`1.27ms` from Cordoba, AR
14.236.184.248	AS45899 VNPT Corp	`8.29ms` from Da Nang, VN
174.29.190.104	AS209 CenturyLink Communications, LLC	`2.12ms` from Denver, US
154.14.23.216	AS3257 GTT Communications Inc.	`0.23ms` from Frankfurt am Main, DE
113.172.145.152	AS45899 VNPT Corp	`1.99ms` from Ho Chi Minh City, VN
82.129.74.72	AS48945 OPEN FIBRE NETWORKS (WHOLESALE) LIMITED	`2.50ms` from London, GB
217.255.184.216	AS3320 Deutsche Telekom AG	`1.97ms` from Nuernberg, DE
60.150.84.8	AS17676 SoftBank Corp.	`3.86ms` from Osaka, JP
177.18.148.104	AS18881 TELEFÔNICA BRASIL S.A	`2.20ms` from Osasco, BR
118.45.251.8	AS4766 Korea Telecom	`5.93ms` from Seoul, KR
111.80.160.56	AS17421 Mobile Business Group	`6.27ms` from Taipei, TW
220.109.171.152	AS4713 NTT DOCOMO BUSINESS,Inc.	`8.46ms` from Tokyo, JP
136.57.109.40	AS16591 Google Fiber Inc.	`5.63ms` from Atlanta, US
69.221.209.8	AS7018 AT&T Enterprises, LLC	`3.18ms` from Atlanta, US
115.64.41.232	AS7545 TPG Telecom Limited	`1.85ms` from Brisbane, AU
213.118.252.104	AS6848 Telenet BV	`7.37ms` from Brussels, BE
222.181.81.168	AS4134 CHINANET-BACKBONE	`1.18ms` from Chongqing, CN
104.55.195.8	AS7018 AT&T Enterprises, LLC	`7.30ms` from Dallas, US
70.143.109.200	AS7018 AT&T Enterprises, LLC	`3.31ms` from Houston, US
41.222.156.88	AS37403 Info-Gro (PTY) Ltd	`2.04ms` from Johannesburg, ZA
209.222.30.56	AS20473 The Constant Company, LLC	`0.14ms` from London, GB
154.45.56.152	AS174 Cogent Communications, LLC	`0.81ms` from Los Angeles, US
84.177.151.200	AS3320 Deutsche Telekom AG	`3.55ms` from Nuernberg, DE
39.66.148.184	AS4837 CHINA UNICOM China169 Backbone	`6.46ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -m7 203.112.78.253

traceroute to 203.112.78.253 (203.112.78.253): 7 hops max, 52 byte packets

1 [AS15169] 72.14.232.209 223.235 ms

2 *

3 [AS58717] 157.119.185.91 268.494 ms

4 [AS58717] 103.199.87.235 255.195 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Moncks Corner, US

On December 14th 2025

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.

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