Reply is partially correct, but also *incorrect*.
Correct:
Many tow operators contract with several Motor Clubs, whether they are located in rural or urban areas.
So - no matter which one you have you may get the same contract operator for your ERS.
The service you receive -*anywhere*- is also dependent on the work load of the contract tow service at the time, other contracts the operator may have, etc.
Incorrect:
If your ERS does *not* have a contract with a towing company in the area where you need service, you may be in for a long wait - or you may need to find your own provider - - and pay "upfront" - which can be expensive!.
That specifically applies to AAA in some parts of the USA.
(It's not a national network)
Depending on how your ERS handles that situation, you may have to furnish receipts -and be patient- for reimbursement.
Note:
GS, CN, etc. are "Motor Clubs".
Their "product" (the ERS) is *underwritten* by the two or three national major road service providers.
That's not "secret" stuff - you can easily acquire that info, although it really doesn't make any difference.
Always be prepared with your membership in the "Dead Presidents" Motor Club or a CC.
Every tow operator is happy to accept those for towing or road service..
.
In some rural places there are not tow companies to choose from. That is all I was saying and if the same truck and often driver shows up what is the big difference if the truck can carry the tow vehicle that is somehow disabled and also tow a trailer? CC's are often good to carry with higher limits to get you to where you can get stuff fixed or spend the night in your RV somewhere not alongside the road. Then the fight begins to get reimbursed. And that is when we get to learn about the 'fine print'.