Sure there is - government owns the wire, and ISP's provide access at an aggregate point.
Are you seriously claiming that the government running the "pipes" wouldn't have any drawbacks?
I can think of a few without trying very hard:
1. Government tends to reduce costs in the short term at the expense of the long term because they don't have to follow their own accounting rules. As an example, they under-pay employees but make up for it with generous future benefits that don't show up on a balance sheet.
2. Government has very little incentive to upgrade the capability of the infrastructure. This same criticism applies to monopolies, though they are at least susceptible to disruptive technology (e.g. solar panels eating into electricity business, mobile phones eating into phone business, etc.).
3. Government is susceptible to graft and corruption, and this is highly correlated to the amount of power that they have. As an example, look at how tool booth collectors are hired. Look at the fact that they still exist at all!
It may very well be a reasonable option to have the government provide the pipes, but let's not pretend it is "perfect". You can put out a competitive bid for maintenance of the pipes and probably get most of the same benefits without the unfunded liabilities - similar to how some states handle the separation between electricity production and distribution.