Located in Laurel, DE 19956, Delmar, DE 19940, Delmar, MD 21875 and Hebron, MD 21830. When I'm on wifi calling at home (because Verizon's coverage has gotten so bad) I sometimes immediately receive SMS messages, sometimes I get them 45minutes later, and sometimes it's 8 hours later.
The odd thing is, if it was because of wifi-calling (which has always worked up until about 5 days ago), then why during my entire drive to work while I'm on LTE only do I not receive messages? It's not until I reconnect to Wifi calling at work (where Verizon's coverage is non-existent) when I get a barrage of text messages that have been missed overnight.