Phone area codes belonging to each US State

state_area_codes.json

{
"AL": [205, 251, 256, 334, 938],
"AK":	907,
"AZ":	[480, 520, 602, 623, 928],
"AR":	[479, 501, 870],
"CA":	[209, 213, 310, 323, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 831, 858, 909, 916, 925, 949, 951],
"CO":	[303, 719, 720, 970],
"CT":	[203, 475, 860, 959],
"DE":	302,
"FL":	[239, 305, 321, 352, 386, 407, 561, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954],
"GA":	[229, 404, 470, 478, 678, 706, 762, 770, 912],
"HI":	808,
"ID":	208,
"IL":	[217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872],
"IN":	[219, 260, 317, 463, 574, 765, 812, 930],
"IA":	[319, 515, 563, 641, 712],
"KA":	[316, 620, 785, 913],
"KY":	[270, 364, 502, 606, 859],
"LA":	[225, 318, 337, 504, 985],
"MA":	207,
"MD":	[240, 301, 410, 443, 667],
"MA":	[339, 351, 413, 508, 617, 774, 781, 857, 978],
"MI":	[231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989],
"MN":	[218, 320, 507, 612, 651, 763, 952],
"MS":	[228, 601, 662, 769],
"MO":	[314, 417, 573, 636, 660, 816],
"MT":	406,
"NE":	[308, 402, 531],
"NV":	[702, 725, 775],
"NH":	603,
"NJ":	[201, 551, 609, 732, 848, 856, 862, 908, 973],
"NM":	[505, 575],
"NY":	[212, 315, 332, 347, 516, 518, 585, 607, 631, 646, 680, 716, 718, 845, 914, 917, 929, 934],
"NC":	[252, 336, 704, 743, 828, 910, 919, 980, 984],
"ND":	701,
"OH":	[216, 220, 234, 330, 380, 419, 440, 513, 567, 614, 740, 937],
"OK":	[405, 539, 580, 918],
"OR":	[458, 503, 541, 971],
"PA":	[215, 267, 272, 412, 484, 570, 610, 717, 724, 814, 878],
"RI":	401,
"SC":	[803, 843, 854, 864],
"SD":	605,
"TN":	[423, 615, 629, 731, 865, 901, 931],
"TX":	[210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 682, 713, 737, 806, 817, 830, 832, 903, 915, 936, 940, 956, 972, 979],
"UT":	[385, 435, 801],
"VT":	802,
"VA":	[276, 434, 540, 571, 703, 757, 804],
"WA":	[206, 253, 360, 425, 509],
"DC":	202,
"WV":	[304, 681],
"WI":	[262, 414, 534, 608, 715, 920],
"WY":	307
}

If you're looking for area codes as the keys of the object, check out - https://gist.github.com/ctrlaltdylan/21c6cfd5872d2094bd245c2f64e167b0