Reference Data
Rate Center Directory
ISABEL, SD Rate Center

ISABEL — SD

Data last updated: March 10, 2026

LATA
640
State
SD
Area Codes
1
Exchanges (NXX)
1
Carriers
1
Coordinates
45.39478289375788, -101.429226115013

Area Codes

605

Top Carriers

Carrier OCN NXX Count
CHEYENNE RIVER SIOUX TRIBAL TEL. AUTHORITY 1647 1