203.112.72.0/23

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	SERVER-GROUP

WHOIS Details

inetnum:        203.112.72.0 - 203.112.72.255
netname:        Server-Group
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:  2021-01-20T23:01:17Z
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:         emdad@optimaxbd.net
abuse-mailbox:  emdad@optimaxbd.net
admin-c:        ONA10-AP
tech-c:         ONA10-AP
auth:           # Filtered
remarks:        emdad@optimaxbd.net
remarks:        emdad@optimaxbd.net
remarks:        emdad@optimaxbd.net
remarks:        emdad@optimaxbd.net
remarks:        emdad@optimaxbd.net 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:         emdad@optimaxbd.net
admin-c:        ONA10-AP
tech-c:         ONA10-AP
nic-hdl:        AO231-AP
remarks:        Generated from irt object IRT-OPTIMAX-BD
remarks:        emdad@optimaxbd.net was validated on 2025-08-19
abuse-mailbox:  emdad@optimaxbd.net
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:         emdad@optimaxbd.net
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:          203.112.72.0/24
origin:         AS38031
descr:          OptiMax Communication Ltd House-06, Road-28, Block-K, Banani
mnt-by:         MAINT-BD-OPTIMAX
last-modified:  2019-10-19T10:59:17Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.112.72.0/23

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

BGP prefixes that are contained by 203.112.72.0/23

Range	ASN	Company	Num of IPs
203.112.72.0/24	AS38031	Md. Emdadul Hoque Molla	256
203.112.73.0/24	AS38031	Md. Emdadul Hoque Molla	256

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
203.112.78.0/24	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 60 domain names hosted across 9 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
203.112.72.165	AS38031 OptiMax Communication Ltd.	`0.32ms` from Dhaka, BD
203.112.73.73	AS38031 OptiMax Communication Ltd.	`0.35ms` 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
142.168.33.167	AS19190 TELUS Communications Inc.	`0.06ms` from Ashburn, US
137.59.148.231	AS46606 Unified Layer	`1.56ms` from Draper, US
14.254.141.71	AS45899 VNPT Corp	`4.03ms` from Hanoi, VN
149.57.127.87	AS210619 Monkey Tree Hosting Limited	`2.73ms` from London, GB
154.26.227.23	AS8796 FASTNET DATA INC	`0.31ms` from Los Angeles, US
101.176.39.199	AS1221 Telstra Limited	`11.14ms` from Melbourne, AU
208.255.198.39	AS701 Verizon Business	`5.99ms` from Miami, US
151.69.45.215	AS1267 WIND TRE S.P.A.	`2.53ms` from Milan, IT
79.51.120.215	AS3269 Telecom Italia S.p.A.	`4.74ms` from Milan, IT
24.204.159.103	AS11290 Cogeco Connexion inc	`14.05ms` from Montreal, CA
216.37.155.167	AS3593 Frontier Communications of America, Inc.	`11.85ms` from New York City, US
87.142.154.7	AS3320 Deutsche Telekom AG	`4.45ms` from Nuernberg, DE
54.198.185.183	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
119.117.105.39	AS4837 CHINA UNICOM China169 Backbone	`8.42ms` from Tieling, CN
210.131.245.39	AS2519 ARTERIA Networks Corporation	`4.07ms` from Tokyo, JP
139.178.19.39	AS15600 Quickline AG	`1.95ms` from Zuerich, CH
91.7.187.55	AS3320 Deutsche Telekom AG	`6.23ms` from Berlin, DE
58.161.130.231	AS1221 Telstra Limited	`9.30ms` from Brisbane, AU
34.127.214.135	AS396982 Google LLC	`0.27ms` from Brussels, BE
168.169.99.119	AS25935 Erie 1 BOCES	`2.27ms` from Buffalo, US
20.80.63.7	AS8075 Microsoft Corporation	`0.40ms` from Chicago, US
185.245.8.7	AS198901 Ordbogen A/S	`2.14ms` from Copenhagen, DK
222.170.1.7	AS4134 CHINANET-BACKBONE	`6.08ms` from Harbin, CN
211.109.145.215	AS9318 SK Broadband Co Ltd	`1.47ms` from Incheon, KR
222.238.132.23	AS9318 SK Broadband Co Ltd	`5.55ms` from Incheon, KR

Traceroute

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

traceroute -a -n -q1 -f3 203.112.72.253

traceroute to 203.112.72.253 (203.112.72.253): 64 hops max, 52 byte packets

3 [] 103.161.216.9 0.311 ms

4 [AS38031] 203.112.72.253 0.365 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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