Check out Zoleo instead of Garmin in reach. 1/2 the price of garmin on guidefitter and you can suspend service for $4 a month while keeping the dedicated phone number.
Advantages of Zoleo over the Garmin are, better battery life, $4/mo when not activated, Zoleo detects if you have cell service or on wifi so you won’t use one of your messages if you have service, uses the same satellite network and it is Cheaper.