Domain will not propagate (Over 96+ Hours)
I'm basically parroting Michael here, but this is too much to paste into a comment:
;sai.ngo. IN A
ngo. 172800 IN NS b0.nic.ngo.
ngo. 172800 IN NS d0.nic.ngo.
ngo. 172800 IN NS a2.nic.ngo.
ngo. 172800 IN NS a0.nic.ngo.
ngo. 172800 IN NS b2.nic.ngo.
ngo. 172800 IN NS c0.nic.ngo.
a0.nic.ngo. 172800 IN A 199.19.56.1
a0.nic.ngo. 172800 IN AAAA 2001:500:e::1
a2.nic.ngo. 172800 IN A 199.249.112.1
a2.nic.ngo. 172800 IN AAAA 2001:500:40::1
b0.nic.ngo. 172800 IN A 199.19.54.1
b0.nic.ngo. 172800 IN AAAA 2001:500:c::1
b2.nic.ngo. 172800 IN A 199.249.120.1
b2.nic.ngo. 172800 IN AAAA 2001:500:48::1
c0.nic.ngo. 172800 IN A 199.19.53.1
c0.nic.ngo. 172800 IN AAAA 2001:500:b::1
d0.nic.ngo. 172800 IN A 199.19.57.1
d0.nic.ngo. 172800 IN AAAA 2001:500:f::1
;; Received 395 bytes from 192.203.230.10#53(e.root-servers.net) in 91 ms
;sai.ngo. IN A
ngo. 900 IN SOA a0.nic.ngo. noc.afilias-nst.info. 1000004846 10800 3600 2764800 900
;; Received 88 bytes from 199.19.53.1#53(c0.nic.ngo) in 17 ms
You can reproduce that with dig +trace +question +additional sai.ngo. This clearly illustrates that the nameservers responsible for ngo are not serving up a referral for sai.ngo...or even acknowledging its existence. Either ngo is having an internal problem, or the name of the domain you registered is not the name that you think it is.
In order for my ngo and ong domain to work, it had to be verified by:
https://www.ongood.ngo
They will ask you for primary, and secondary contact information, as well as supporting documentation proving you control a legally registered non-profit organization. A copy of my articles of incorporation was sufficient to be verified.