Reference Data WALNUT, KS Rate Center WALNUT — KS Data last updated: March 10, 2026 LATA 532 State KS Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 37.60101334405754, -95.07801355747985 Area Codes 620 Top Carriers Carrier OCN NXX Count CRAW-KAN TEL. COOP.,INC. - KS 1818 1