| Abbreviation | Definition |
|---|---|
| ND | Non-Duplex |
| NDE | National Dedicated Ethernet |
| NDF | New Data Flag |
| NDL | No DownLink |
| NDM | Network Data Mover |
| NDMA | Network Diversity Multiple Access |
| NDOTT | National Data Operations Training Team |
| NDT | No Dial Tone |
| NE | Network Element |
| NEP | No Exchange Provided |
| NEWT | Newly Emerging Wireless Technologies |
| NEXT | Near-End CrossTalk |
| NFAS | Non-Facility-Associated Signalling |
| NFWS | National Fixed Wireless Services (telecommunications) |
| NGA | Next Generation Access Network |
| NGCC | New Generation Call Center |
| NGDLC | Next Generation Digital Loop Carrier |
| NGN | Next Generation Network |
| NGN | Non-Geographic Number |
| NGNP | Non-Geographic Number Portability |