Reference Data HOLYOKE, CO Rate Center HOLYOKE — CO Data last updated: March 10, 2026 LATA 656 State CO Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.58390258480728, -102.2997943277931 Area Codes 970 Top Carriers Carrier OCN NXX Count PHILLIPS COUNTY TEL. CO. 2197 1
