Reference Data Rate Center Directory MOSSYROCK, WA Rate Center MOSSYROCK — WA Data last updated: March 10, 2026 LATA 674 State WA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 46.53006238147428, -122.4841383487409 Area Codes 360 Top Carriers Carrier OCN NXX Count MCDANIEL TEL. CO. 2430 1