MI-1-8240 ARROW FENCE
This is the first new-to-me sighting of a telephone exchange name in over a year. Spotted in Corona, I don't know if this MI exchange name is MIchigan or MInnesota, or maybe something else. Arrow Fence appears to be defunct but its fleshed-out phone number, 718-641-8240, appears online. The number now leads to a spam robocall thing that claims it will find similar businesses for you in the area. A little bit more about this sighting at WSBJ.com.