> Yes, no telecom should be the only telecom in a region, but each telecom is granted an exclusivity (monopoly) on a particular utility line: cable companies are given (in most regions) exclusive rights to a region's originally TV focused fiber and coax cables and phone companies are given (in most regions) exclusive rights to a region's originally phone-focused fiber and coax cables.
That's a weird way of phrasing it. Cable companies own their lines because they paid to build them. But they haven't been "intentionally granted monopolies" as you claimed above, because another provider could come in and build lines and provide service. (Power companies, by contrast, generally do have a monopoly in that sense.)
Most regions are aware that cable and/or phone lines form a natural monopoly, and thus intentionally granted that monopoly, placing regulatory bodies just as they did power, water, etc.
Just look at how badly Google Fiber is failing some cities to see how hard it is for "another provider could come in and build lines and provide service". It may be "slightly" easier to have competing cable providers than competing power companies (though keep in mind early America did have more competing power companies in some regions), but it's not that much easier, it's still a natural monopoly.
That's a weird way of phrasing it. Cable companies own their lines because they paid to build them. But they haven't been "intentionally granted monopolies" as you claimed above, because another provider could come in and build lines and provide service. (Power companies, by contrast, generally do have a monopoly in that sense.)