| Broadcast area | Ilocos Sur and surrounding areas |
|---|---|
| Frequency | 98.9 MHz |
| Programming | |
| Format | Silent |
| Ownership | |
| Owner | Southern Broadcasting Network |
| History | |
First air date | 1979 |
Last air date | February 25, 2018 |
Former names |
|
Call sign meaning | Ilocos Sur |
| Technical information | |
Licensing authority | NTC |
DWIS (98.9 FM) was a radio station owned and operated by Southern Broadcasting Network. The station's studio and transmitter were located in Brgy. Cabaroan Laud, Vigan. It was shut down alongside DWSN on February 25, 2018. [1] [2] [3]