NXX full form

Short Form
Full Form

identifies the central office exchange allocated within the NPAs
NXX is a three letter word which starts with N and ends with X .Below is the list of all full forms and acronym of NXX.

1) NX
2) NXT
4) NXD
5) NXX
6) NXU
7) NXE
8) NXF
9) NXN
10) NXTT
11) NXRD