По коду или номеру телефона определяем, какой сотовый оператор связи и какой регион
- 9xx
900, 901, 902, 903, 904, 905, 906, 908, 909, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 936, 937, 938, 939, 941, 950, 951, 952, 953, 954, 955, 956, 958, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 980, 981, 982, 983, 984, 985, 987, 988, 989, 991, 992, 993, 994, 995, 996, 997, 999, - 8xx
800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 811, 812, 813, 814, 815, 816, 817, 818, 820, 821, 831, 833, 834, 835, 836, 841, 842, 843, 844, 845, 846, 847, 848, 851, 855, 861, 862, 863, 865, 866, 867, 871, 872, 873, 877, 878, 879, - 4xx
401, 411, 413, 415, 416, 421, 423, 424, 426, 427, 471, 472, 473, 474, 475, 478, 481, 482, 483, 484, 485, 486, 487, 491, 492, 493, 494, 495, 496, 498, 499, - 3xx
301, 302, 336, 341, 342, 343, 345, 346, 347, 349, 351, 352, 353, 381, 382, 383, 384, 385, 388, 390, 391, 394, 395,
