"number" means a number, letter or symbol;

     "numbering and electronic addressing plan" means the numbering and electronic addressing plan developed under section 180;

     "owner" means the legal or beneficial owner;

     "post" means a post, pole, tower, standard, stay, strut or other above-ground facility for carrying, suspending or supporting any network facilities;

     "public utility" means a body that provides to the public -----

            (a)   reticulated products or services, such as electricity, gas, water, 
                    sewerage or drainage;  

            (b)   telecommunications services;

            (c)   transport services; or

            (d)   a product or service of a kind that is similar to a product or service 
                    covered by paragraph (a), (b) or (c);

     "register" means any one of the registers established or maintained by the Commission for the purposes of this Act;

     "register of opinions" means the register of opinions maintained under section 97 or 210, or any other relevant section;

     "required applications service" means an applications service which is in a list determined by the Minister under section 192;

     "spectrum" means the continuous range of electromagnetic wave frequencies up to and including a frequency of 420 terahertz;

     "spectrum assignment" means the assignment issued under section 159;

     "spectrum plan" means the spectrum plan developed under section 172;