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 59 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

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

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
203.112.73.73	AS38031 OptiMax Communication Ltd.	`0.40ms` from Dhaka, BD
203.112.72.253	AS38031 OptiMax Communication Ltd.	`0.31ms` 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
131.96.103.215	AS10631 Georgia State University	`0.23ms` from Atlanta, US
24.2.230.199	AS7922 Comcast Cable Communications, LLC	`8.49ms` from Boston, US
174.110.229.167	AS11426 Charter Communications Inc	`8.73ms` from Charlotte, US
14.98.38.55	AS45820 Tata Teleservices ISP AS	`0.70ms` from Chennai, IN
13.89.104.199	AS8075 Microsoft Corporation	`0.33ms` from Des Moines, US
5.65.68.7	AS5607 Sky UK Limited	`5.33ms` from Erith, GB
67.64.177.247	AS7018 AT&T Enterprises, LLC	`1.39ms` from Houston, US
14.41.59.231	AS4766 Korea Telecom	`3.94ms` from Incheon, KR
5.58.102.55	AS16223 MAXNET TELECOM, LTD	`5.54ms` from Kyiv, UA
81.152.67.215	AS2856 British Telecommunications PLC	`3.94ms` from London, GB
37.68.155.215	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`14.86ms` from Paris, FR
90.120.154.151	AS3215 Orange S.A.	`13.56ms` from Paris, FR
45.79.83.23	AS63949 Akamai Connected Cloud	`0.30ms` from Santa Clara, US
137.132.210.231	AS7472 NUS Information Technology	`0.85ms` from Singapore, SG
213.235.255.87	AS8437 Hutchison Drei Austria GmbH	`1.36ms` from Vienna, AT
34.218.4.119	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
80.249.107.199	AS21396 NetConnex Broadband Ltd.	`0.44ms` from London, GB
82.10.141.167	AS5089 Virgin Media Limited	`6.58ms` from London, GB
51.92.62.135	AS16509 Amazon.com, Inc.	`6.11ms` from Madrid, ES
49.188.113.55	AS4804 Microplex PTY LTD	`3.01ms` from Melbourne, AU
62.108.226.199	AS25518 ZUCCHETTI SPA	`1.39ms` from Milan, IT
3.228.76.23	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
151.15.197.247	AS1267 WIND TRE S.P.A.	`3.32ms` from Rome, IT
95.255.63.7	AS3269 Telecom Italia S.p.A.	`7.62ms` from Rome, IT
190.121.9.135	AS14117 Telefonica del Sur S.A.	`5.12ms` from Santiago, CL

Traceroute

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

traceroute -a -n -q1 -f2 203.112.73.217

traceroute to 203.112.73.217 (203.112.73.217): 64 hops max, 52 byte packets

2 [AS15169] 142.251.239.246 260.889 ms

3 *

4 *

5 [] 103.249.0.43 282.33 ms

6 [AS38031] 203.112.73.217 261.468 ms

Measurement taken from

IPinfo ProbeNet in Columbus, US

On February 7th 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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