% 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 '154.68.192.0 - 154.68.255.255'

% No abuse contact registered for 154.68.192.0 - 154.68.255.255

inetnum:        154.68.192.0 - 154.68.255.255
netname:        NRaE1-v4-I
descr:          Nigerian Research and Education Network Limited by Guarantee
country:        NG
org:            ORG-NRaE1-AFRINIC
admin-c:        JA29-AFRINIC
admin-c:        GG22-AFRINIC
tech-c:         CN39-AFRINIC
tech-c:         GG22-AFRINIC
status:         ALLOCATED PA
mnt-by:         AFRINIC-HM-MNT
mnt-lower:      NRaE1-MNT
mnt-domains:    NRaE1-MNT
source:         AFRINIC # Filtered
parent:         154.0.0.0 - 154.255.255.255

organisation:   ORG-NRaE1-AFRINIC
org-name:       Nigerian Research and Education Network Limited by Guarantee
org-type:       LIR
country:        NG
address:        Peter Okebukola House,
address:        National Universities Commission 26, Aguiyi Ironsi Street, Maitama PMB 237, Garki GPO
address:        Abuja
phone:          tel:+234-803-314-5148
phone:          tel:+234-706-657-2911
phone:          tel:+234-908-659-9546
admin-c:        JA29-AFRINIC
admin-c:        GG22-AFRINIC
tech-c:         CN39-AFRINIC
tech-c:         GG22-AFRINIC
mnt-ref:        AFRINIC-HM-MNT
mnt-ref:        NRaE1-MNT
mnt-by:         AFRINIC-HM-MNT
source:         AFRINIC # Filtered

person:         Chukwuemeka Nwufo
address:        Nigerian Research and Education Network,
address:        Peter Okebukola Building,
address:        National Universities Commission,
address:        Maitama, Abuja FCT, Nigeria
phone:          tel:+234-706-657-2911
nic-hdl:        CN39-AFRINIC
mnt-by:         GENERATED-2HNOSBXDURXTGMOVAYDJUSWBDBNWLIFQ-MNT
source:         AFRINIC # Filtered

person:         Gaurav Gupta
nic-hdl:        GG22-AFRINIC
address:        Peter Okebukola House,
address:        National Universities Commission 26, Aguiyi Ironsi Street,
address:        Maitama PMB 237, Garki GPO
address:        Abuja
address:        Nigeria
address:        Abuja
address:        Other
phone:          tel:+234-9135856335
phone:          tel:+91-98104-88080
mnt-by:         GENERATED-ACIO2THOKKTCHGBGAWBLCV1LQN5BOUTJ-MNT
source:         AFRINIC # Filtered

person:         Joshua Atah
address:        Nigerian Research and Education Network
address:        Peter Okebukola Building
address:        National Universities Commission
address:        No 26 Aguiyi Ironsi Street, Maitama
address:        Abuja
address:        Nigeria
phone:          tel:+234-803-314-5148
nic-hdl:        JA29-AFRINIC
mnt-by:         GENERATED-N43V4BHTG6VHUCVSDNTXHBQXHCQHYFMQ-MNT
source:         AFRINIC # Filtered

% Information related to '154.68.192.0/18AS37661'

route:          154.68.192.0/18
descr:          NgREN route object
origin:         AS37661
mnt-by:         NRaE1-MNT
source:         AFRINIC # Filtered