Stumbled across this site while looking for something else. Interesting to
see some states don't have cellphone emergency numbers (such as *55 or *577
for Louisiana).

Vermont and New Mexico don't even use 911 for emergencies.

How many states advertise this number? I know Missouri does and Louisiana
does, but Arkansas does NOT. There are no signs along any of the state's
highways. The 2011 highway map is the first time I've seen it mentioned, other
than an occasional Gridlock Guru newspaper column.