1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.112.0.0/16
  4. AS38031  | 203.112.72.0/21

203.112.72.0/21

AS38031  ·  OptiMax Communication Ltd.

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Summary

Country Bangladesh
Domain optimaxbd.net
ASN AS38031
Registry APNIC
ID OPTIMAX

WHOIS Details

inetnum:        203.112.72.0 - 203.112.79.255
netname:        OPTIMAX
descr:          OptiMax COmmunication Ltd
descr:          (Internet Service Provider)
descr:          House-90, Road-23, Block-A
descr:          Banani, Dhaka
descr:          Bangladesh
country:        BD
org:            ORG-OCL2-AP
admin-c:        ONA10-AP
tech-c:         ONA10-AP
abuse-c:        AO231-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-OPTIMAX
mnt-routes:     MAINT-BD-OPTIMAX
mnt-irt:        IRT-OPTIMAX-BD
last-modified:  2020-05-27T13:03:43Z
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

organisation:   ORG-OCL2-AP
org-name:       OptiMax Communication Ltd
org-type:       LIR
country:        BD
address:        House-06, Road-28, Block-K,
address:        Banani
phone:          +88-02-9853356
fax-no:         +88-02-9841744
e-mail:         info@optimaxbd.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:08Z
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:          203.112.72.0/21
descr:          203.112.72.0/24 server group
descr:          203.112.73.0/24 to 203.112.76.0/24 Cable modem user group-1
descr:          203.112.77.0/24 to 203.112.79.0/24 server group
origin:         AS38031
mnt-by:         MAINT-BD-OPTIMAX
last-modified:  2009-06-29T06:01:36Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 203.112.72.0/21

Range ASN Company Num of IPs
203.112.78.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.79.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.72.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.73.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.74.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.75.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.76.0/24 AS38031 Md. Emdadul Hoque Molla 256
203.112.77.0/24 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
203.112.64.0/21 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 10 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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Pingable IPs

372 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
203.112.79.45 AS38031 OptiMax Communication Ltd. 0.40ms from Dhaka, BD
203.112.72.253 AS38031 OptiMax Communication Ltd. 0.31ms from Dhaka, BD
203.112.77.113 AS38031 OptiMax Communication Ltd. 0.34ms from Dhaka, BD
203.112.75.97 AS38031 OptiMax Communication Ltd. 0.32ms from Dhaka, BD
203.112.74.85 AS38031 OptiMax Communication Ltd. 0.36ms from Dhaka, BD
203.112.76.21 AS38031 OptiMax Communication Ltd. 0.40ms 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
41.106.80.181 AS36947 Telecom Algeria 9.07ms from Algiers, DZ
96.117.11.69 AS7922 Comcast Cable Communications, LLC 0.61ms from Ashburn, US
77.191.40.85 AS6805 Telefonica Germany GmbH & Co.OHG 4.60ms from Berlin, DE
47.227.29.85 AS33363 Charter Communications, Inc 9.53ms from Chicago, US
67.176.177.213 AS7922 Comcast Cable Communications, LLC 5.72ms from Chicago, US
113.174.135.101 AS45899 VNPT Corp 7.90ms from Da Nang, VN
99.22.145.37 AS7018 AT&T Enterprises, LLC 1.78ms from Dallas, US
182.78.71.37 AS9498 BHARTI Airtel Ltd. 0.83ms from Delhi, IN
76.25.220.197 AS7922 Comcast Cable Communications, LLC 3.32ms from Denver, US
84.153.78.213 AS3320 Deutsche Telekom AG 4.83ms from Frankfurt am Main, DE
91.50.38.149 AS3320 Deutsche Telekom AG 2.40ms from Hamburg, DE
43.241.73.181 AS132056 SCICUBE 1.90ms from Hong Kong, HK
41.30.200.197 AS29975 Vodacom 13.39ms from Johannesburg, ZA
180.130.253.5 AS4837 CHINA UNICOM China169 Backbone 9.62ms from Kunming, CN
45.49.145.229 AS20001 Charter Communications Inc 6.36ms from Los Angeles, US
41.174.55.133 AS30844 Liquid Telecommunications Ltd 13.89ms from Lusaka, ZM
159.255.134.5 AS50877 Airbeam S.r.l. 0.25ms from Milan, IT
189.108.84.117 AS10429 TELEFÔNICA BRASIL S.A 0.76ms from Osasco, BR
45.184.195.69 AS269364 COMPACT COMPANY TELECOM 2.77ms from Osasco, BR
15.218.110.85 AS20055 Wholesail networks LLC 2.22ms from Seattle, US
220.73.123.197 AS4766 Korea Telecom 5.07ms from Seoul, KR
185.235.224.69 AS7393 CYBERCON, INC. 0.33ms from St. Louis, US
220.244.19.165 AS7545 TPG Telecom Limited 0.27ms from Sydney, AU
126.48.149.245 AS17676 SoftBank Corp. 7.36ms from Tokyo, JP
64.227.175.37 AS14061 DigitalOcean, LLC 0.02ms from Bengaluru, IN

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

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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