How could the domain in different areas resolve to a different IP address?

When I nslookup the domain in area1, it get 103.61.39.86

[root@localhost ~]# nslookup demo.com
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	demo.com
Address: 	103.61.39.86

but when I nslookup the domain in area2, it get 47.94.236.96

[root@localhost ~]# nslookup demo.com
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	demo.com
Address: 	103.61.39.86

--- if using CDN, in general, the nslookup should resolve to a CNAME, so can judge the www.demo.com case is not using CDN?

[root@localhost ~]# nslookup otafsg-cost-az.demo.com
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	otafsg-cost-az.demo.com
Address: 184.87.193.87
Name:	otafsg-cost-az.demo.com
Address: 184.87.193.77
Name:	otafsg-cost-az.demo.com
Address: 2600:140b:a00:c::b81b:b945
Name:	otafsg-cost-az.demo.com
Address: 2600:140b:a00:c::b81b:b957
> Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	otafsg-cost-az.demo.com
Address: 184.87.193.77
Name:	otafsg-cost-az.demo.com
Address: 184.87.193.87
Name:	otafsg-cost-az.demo.com
Address: 2600:140b:a00:c::b81b:b957
Name:	otafsg-cost-az.demo.com
Address: 2600:140b:a00:c::b81b:b945

What is going on here?