As used in this chapter, which may be cited as the “Small Investor-Owned Telephone Utility Act”: “Commission” means the “State Corporation Commission.” “Small investor-owned telephone utility” means any investor-owned public utility (other than a cooperative) which serves fewer than 100,000 access lines in Virginia and which owns, manages, or controls any plant or equipment or any part of a plant or equipment within the Commonwealth for the conveyance of telephone messages, either directly or indirectly, to or for the public.