The present study aims at analyzing the level of exposure to non-ionizing radiation for the population inside central residential area of Craiova, Romania This type of EM (electromagnetic radiation) is generated mainly by GSM (Global System for Mobile Communication) technology of wireless communication based on the electromagnetic emitters (GSM antennas) needed for covering wider territorial areas. They produce constant pulsed microwave radiation even when nobody is using the phone, affecting the people inside and outside public and residential buildings. Contributions in this filed show that there is a direct link between continuous exposure to microwave radiation from cell phone towers and serious health problems over the years. The paper is based on selective measurements of HF radiations within GSM 900-1800 MHz range at cell towers and at distance both inside and outside residential buildings within the study area. In most cases the exposure zones were located in the vicinity of base stations antenna where recorded levels of HF radiation were superior to recommended values. One main objective is to establish some residential compliance exposure zones inside the study area in relation with international regulations and standards concerning GSM radiation limits.