Here are 38 NNNN.INs that are available to register.
0084.in
0214.in
0241.in
0243.in
0245.in
0247.in
0249.in
0375.in
0461.in
0479.in
0765.in
2940.in
3430.in
3440.in
3740.in
4054.in
4064.in
4074.in
4094.in
4208.in
4238.in
4248.in
4268.in
4278.in
4298.in
4308.in
4318.in
4348.in
4368.in
4378.in
4398.in
4504.in
4574.in
4594.in
4604.in
5140.in
9741.in
9749.in