shell:$ nslookup -timeout=2 -retry=1 'merchant.tz.oat.smartphone.m-pesa.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
merchant.tz.oat.smartphone.m-pesa.com	canonical name = smp-merchapp-tz-oat-alb-app-1175251386.eu-west-1.elb.amazonaws.com.
Name:	smp-merchapp-tz-oat-alb-app-1175251386.eu-west-1.elb.amazonaws.com
Address: 54.229.149.193
Name:	smp-merchapp-tz-oat-alb-app-1175251386.eu-west-1.elb.amazonaws.com
Address: 52.31.135.57