% APNIC found the following authoritative answer from: whois.apnic.net

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS133120 - AS133631'

as-block:       AS133120 - AS133631
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2013-09-11T23:52:15Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS133547'

% Abuse contact for 'AS133547' is 'muttakin@bitnetbd.com'

aut-num:        AS133547
as-name:        BITNET-AS-AP
descr:          Bit Net Technology
country:        BD
org:            ORG-BNT1-AP
admin-c:        BNTA1-AP
tech-c:         BNTA1-AP
abuse-c:        AB1342-AP
mnt-lower:      MAINT-BITNET-BD
mnt-routes:     MAINT-BITNET-BD
mnt-by:         APNIC-HM
mnt-irt:        IRT-BITNET-BD
last-modified:  2021-01-07T00:32:50Z
source:         APNIC

irt:            IRT-BITNET-BD
address:        1/18, East Basabo, Sabujbagh, Dhaka Dhaka 1214
e-mail:         muttakin@bitnetbd.com
abuse-mailbox:  muttakin@bitnetbd.com
admin-c:        BNTA1-AP
tech-c:         BNTA1-AP
auth:           # Filtered
mnt-by:         MAINT-BITNET-BD
last-modified:  2024-05-15T04:33:11Z
source:         APNIC

organisation:   ORG-BNT1-AP
org-name:       Bit Net Technology
org-type:       LIR
country:        BD
address:        1/18, East Basabo, Sabujbagh
phone:          +8801717700729
e-mail:         muttakin@bitnetbd.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:17:12Z
source:         APNIC

role:           ABUSE BITNETBD
address:        1/18, East Basabo, Sabujbagh, Dhaka Dhaka 1214
country:        ZZ
phone:          +000000000
e-mail:         muttakin@bitnetbd.com
admin-c:        BNTA1-AP
tech-c:         BNTA1-AP
nic-hdl:        AB1342-AP
remarks:        Generated from irt object IRT-BITNET-BD
abuse-mailbox:  muttakin@bitnetbd.com
mnt-by:         APNIC-ABUSE
last-modified:  2024-05-15T04:33:11Z
source:         APNIC

role:           Bit Net Technology administrator
address:        1/18, East Basabo, Sabujbagh, Dhaka Dhaka 1214
country:        BD
phone:          +8801717700729
fax-no:         +8801717700729
e-mail:         muttakin@bitnetbd.com
admin-c:        BNTA1-AP
tech-c:         BNTA1-AP
nic-hdl:        BNTA1-AP
mnt-by:         MAINT-BITNET-BD
last-modified:  2017-03-27T05:33:40Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU2)

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