Reference Data
Rate Center Directory
COLUMBIA, SD Rate Center

COLUMBIA — SD

Data last updated: June 25, 2026

LATA
640
State
SD
Area Codes
1
Exchanges (NXX)
1
Carriers
1
Coordinates
45.61346189983127, -98.31299309538674

Area Codes

605

Top Carriers

CarrierOCNNXX Count
JAMES VALLEY COOPERATIVE TELEPHONE COMPANY16641