Electronic and Postal Communications (Central Equipment Identification Register) G.N. No. 417 (contd) electromagnetic energy; “electronic communications network” means any network that enables or facilitates the provision of an electronic communications service; “electronic communication facility” means any facility used or intended to be used for electronic communication; “electronic communication number” means the number, sign or other mark which a network service licensee in its delivery of electronic communication services uses for identification of electronic communication facilities in order to connect between the place of transmission and the place of reception, or for identification of the type of content of transmission the electronic communication facility is to deliver; “grey list” means IMEI or ESN entries that are temporary blocked or temporary allowed; “IMEI or ESN flushing” means re-programming of the mobile device with aim to give a new identity other than its original; “information” means lost IMEI or ESN of mobile telephone and CDR; “International Mobile Equipment Identification “in its abbreviation IMEI” means a unique code used to identify an individual mobile telephone in Global Systems for Mobile communications networks; “national numbering plan” means a scheme of identification prescribed by the Authority for ensuring that electronic communications services are correctly and efficiently directed to their intended points of reception; “network service” means a service for the carrying of information in the form of speech or other sound, data, text or images by means of guided or unguided electromagnetic energy but does not include services provided solely on the customer side of the network 27