Service Area WCOIL's service area is nationwide. Select your state on the map to the right to view the access numbers for your area. Before using a particular number, contact your local telephone company to verify that it is a local (non-toll) call. WCOIL is not responsible for any long-distance charges on your phone bill. Access Numbers (DC) City Number 56K ISDN Bethesda 240-336-0089 v.90 N Damascus 240-325-0089 v.90 N Gaithersburg 240-327-0089 v.90 N Leonardtown 240-239-0089 v.90 N Waldorf 240-279-0089 v.90 N Washington 202-360-4308 v.90 Y Washington 202-521-3411 v.90 Y Washington 202-360-4450 v.90 Y Washington 202-464-1376 v.90 Y Washington 202-294-0044 v.90 Y Washington 202-360-4014 v.90 Y Washington 202-294-0012 v.90 Y Washington Zone 01 202-360-4055 v.90 Y WSHNGTNZN1 202-552-0108 v.90 Y