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

% This is the AfriNIC Whois server.
% The AFRINIC whois database is subject to  the following terms of Use. See https://afrinic.net/whois/terms

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '196.249.64.0 - 196.249.127.255'

% No abuse contact registered for 196.249.64.0 - 196.249.127.255

inetnum:        196.249.64.0 - 196.249.127.255
netname:        VIETTEL-TANZANIA
descr:          Viettel Tanzania
country:        TZ
org:            ORG-VT2-AFRINIC
admin-c:        NNS2-AFRINIC
admin-c:        PTD1-AFRINIC
tech-c:         BDV1-AFRINIC
status:         ALLOCATED PA
mnt-by:         AFRINIC-HM-MNT
mnt-lower:      VIETTEL-TZ-MNT
mnt-routes:     VIETTEL-TZ-MNT
source:         AFRINIC # Filtered
parent:         196.0.0.0 - 196.255.255.255

organisation:   ORG-VT2-AFRINIC
org-name:       Viettel Tanzania PLC
org-type:       LIR
country:        TZ
address:        10th Floor, Tanzanite Park, Plot No. 38, South Ursino, New Bagamoyo Road P.O.BOX 34716
address:        Dar es Salaam
phone:          tel:+255-629-099-939
phone:          tel:+255-628-988-888
phone:          tel:+255-622-277-048
admin-c:        PTD1-AFRINIC
admin-c:        NNS2-AFRINIC
tech-c:         BDV1-AFRINIC
mnt-ref:        AFRINIC-HM-MNT
mnt-ref:        VIETTEL-TZ-MNT
mnt-by:         AFRINIC-HM-MNT
source:         AFRINIC # Filtered

person:         Bui Duc Viet
nic-hdl:        BDV1-AFRINIC
address:        10th Floor, Tanzanite Park Building, New Bagamoyo Road
address:        Dar es Salaam 34716
address:        Tanzania
phone:          tel:+255-629-101-977
mnt-by:         GENERATED-RMHO9IZ33DHTLZN3BQV44VZJA91IEGD3-MNT
source:         AFRINIC # Filtered

person:         Nguyen Ngoc Sang
nic-hdl:        NNS2-AFRINIC
address:        10th Floor, Tanzanite Park building, New Bagamoyo Road
address:        Dar es Salaam 34716
address:        Tanzania
phone:          tel:+255-627-397-398
mnt-by:         GENERATED-Z8CCXVULW9NKHBFTNMLQUJKEJJRYCJOZ-MNT
source:         AFRINIC # Filtered

person:         Pham Trong Dat
nic-hdl:        PTD1-AFRINIC
address:        10th Floor, Tanzanite Park Building, New Bagamoyo Road
address:        Dar es Salaam 34716
address:        Tanzania
phone:          tel:+255-621-557-979
mnt-by:         GENERATED-QZAQM5M1FYPOLXL3XSNCCTF3TSRIOKOM-MNT
source:         AFRINIC # Filtered

% Information related to '196.249.97.0/24AS327885'

route:          196.249.97.0/24
descr:          VIETTEL TANZANIA PLC
origin:         AS327885
mnt-by:         VIETTEL-TZ-MNT
source:         AFRINIC # Filtered

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IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain