Just as a point of interest, here in Canada the airlines operate their own vhf ops frequencies. Yes there are a few ARINC sites but not many and really I cannot recall ever hearing anything on their frequency in this region. Here in Halifax, which is not a large airport by US standards, there are several company frequencies for Air Canada, Jazz, WestJet, FedEx, Air St Pierre, and as well the local agents for the several US airlines that fly into here.
Even the long distance HF stuff is not ARINC.. Gander Radio, which oversees the northwestern part of the Atlantic is operated by NavCanada, the ATC agency of Canada, unlike just south where New York Radio is ARINC.