Reference Data Rate Center Directory AVALON, MO Rate Center AVALON — MO Data last updated: March 10, 2026 LATA 524 State MO Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 39.66022990979649, -93.44330396719049 Area Codes 660 Top Carriers Carrier OCN NXX Count GREEN HILLS TEL. CORP. 1890 1
