Channels can be created for broadcasting messages to an unlimited number of subscribers. Many broadband operators imposed various contractual limits on the activities of their subscribers. Overall mobile phone penetration rate is at 148 mobile phone subscribers per 100 people. News is a local news provider available only to cable subscribers. Verizon Wireless offers certain applications and services that are exclusive to its subscribers. The multi-year agreement provides iPhone access to over 760million China Mobile subscribers. China is the largest market in terms of mobile phone subscribers. Initially telephony was available in the homes of individual subscribers, companies and offices. A new level of competition for subscribers and readers began during the 1970s. He has over 7.2 million YouTube subscribers and 9.2 million followers on Instagram. The number of subscribers and postings grew rapidly. Some of these programs may still be available on demand to HBO subscribers. It is available to Videotron cable subscribers only. Heavy criticism followed, with reports of some paying Spotify subscribers demanding refunds or unsubscribing. BBC News 24 was originally available to digital terrestrial, satellite and cable television subscribers.