The Area Codes of United States of America: City/Town or RegionArea code 1.Washington360 (+1 360) 2.Washington253 (+1 253) 3.Washington206 (+1 206) 4.Washington425 (+1 425) 5.Washington509 (+1 509) 6.West Virginia304 (+1 304) 7.West Virginia681 (+1 681) 8.Wisconsin262 (+1 262) 9.Wisconsin920 (+1 920) 10.Wisconsin534 (+1 534) 11.Wisconsin414 (+1 414) 12.Wisconsin608 (+1 608) 13.Wisconsin715 (+1 715) 14.Wyoming307 (+1 307)