Results for 203.112.72.0 :
% [whois.apnic.net node-3]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

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
admin-c:      EM99-AP
tech-c:       EM99-AP
status:       ALLOCATED PORTABLE
mnt-by:       APNIC-HM
mnt-lower:    MAINT-BD-OPTIMAX
mnt-routes:   MAINT-BD-OPTIMAX
remarks:      -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
remarks:      This object can only be updated by APNIC hostmasters.
remarks:      To update this object, please contact APNIC
remarks:      hostmasters and include your organisation's account
remarks:      name in the subject line.
remarks:      -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
changed:      hm-changed@apnic.net 20060321
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
changed:      emdad@optimaxbd.net 20090629
source:       APNIC

person:       Eric Montesines
nic-hdl:      EM99-AP
e-mail:       acarlando@pldt.com.ph
address:      Sta Rita Interchange District Cagayan
address:      Valley Brgy Sta Rita Guguinta BULACAN
phone:        +63-2-637-6661
country:      PH
changed:      framirez@info.com.ph 20040808
mnt-by:       MAINT-PH-INFOCOM
source:       APNIC

Additional Information:

[IP Info]
Host Name: Unable to resolve host
Location: BANGLADESH 
Port Scan:
Port 80 is open.
[http]
Port 110 is closed.
[pop3]
Port 21 is closed.
[ftp]
Port 25 is closed.
[smtp]