In this paper, the authors demonstrate that the electrical conduction along ZnO:N nanobelts follow a conduction mechanism type Poole‐Frenkel. Electrical measurements obtained using the conductive‐AFM (C‐AFM) technique and between two In/W electrodes of single ZnO:N nanobelts confirm this result. These measurements reveal that the dielectric constant, ϵr, of the ZnO nanobelts, is about 4.3. Cathodoluminescence (CL) spectra acquired from single ZnO:N nanobelts show a strong signal centered at 3.23, with two‐phonon replicas at 3.15 and 3.08 eV, generated by a donor‐acceptor pair (DAP) transition besides a signal centered at 3.29 eV corresponding with a free electron‐acceptor (FA) transition. The authors propose the presence of NO as acceptor centers to explain the origin of these electronic transitions. X‐ray photoelectron spectroscopy measurements confirm the presence of this substitutional impurity, revealing an N 1s signal corresponding with ZnN bonds. The authors propose that NO acceptor centers participate as defect traps that originate the Poole‐Frenkel conduction mechanism.