A PO BOX number can be less than or more than four digit. For post office boxes, the general rule is that each box has its own ZIP+4 code.
The last four digit is often one of the following:
1. Zero plus the last three digits of the box number (eg. PO BOX 1001, Los Angeles CA 90001-0001).
2. The last four digits of the box number (eg. PO BOX 9991, Twin Peaks CA 92391-9991).
3. If the box number is less than four digits, enough zeros prepended to the front of the box number to produce a four-digit number(eg. PO BOX 1, Shreveport LA 71161-0001).
However, there is no uniform rule, the zip code plus four is for reference only, the ZIP+4 code must be looked up individually for each box in the USPS offical website.
PO BOX 1001, SOUTH GLENS FALLS, NY 12803-1001
PO BOX 1002, SOUTH GLENS FALLS, NY 12803-1002
PO BOX 1003, SOUTH GLENS FALLS, NY 12803-1003
PO BOX 1004, SOUTH GLENS FALLS, NY 12803-1004
PO BOX 1005, SOUTH GLENS FALLS, NY 12803-1005
PO BOX 1006, SOUTH GLENS FALLS, NY 12803-1006
PO BOX 1007, SOUTH GLENS FALLS, NY 12803-1007
PO BOX 1008, SOUTH GLENS FALLS, NY 12803-1008
PO BOX 1009, SOUTH GLENS FALLS, NY 12803-1009
PO BOX 1010, SOUTH GLENS FALLS, NY 12803-1010
PO BOX 1011, SOUTH GLENS FALLS, NY 12803-1011
PO BOX 1012, SOUTH GLENS FALLS, NY 12803-1012
PO BOX 1013, SOUTH GLENS FALLS, NY 12803-1013
PO BOX 1014, SOUTH GLENS FALLS, NY 12803-1014
PO BOX 1015, SOUTH GLENS FALLS, NY 12803-1015
PO BOX 1016, SOUTH GLENS FALLS, NY 12803-1016
PO BOX 1017, SOUTH GLENS FALLS, NY 12803-1017
PO BOX 1018, SOUTH GLENS FALLS, NY 12803-1018
PO BOX 1019, SOUTH GLENS FALLS, NY 12803-1019
PO BOX 1020, SOUTH GLENS FALLS, NY 12803-1020
PO BOX 1021, SOUTH GLENS FALLS, NY 12803-1021
PO BOX 1022, SOUTH GLENS FALLS, NY 12803-1022
PO BOX 1023, SOUTH GLENS FALLS, NY 12803-1023
PO BOX 1024, SOUTH GLENS FALLS, NY 12803-1024
PO BOX 1025, SOUTH GLENS FALLS, NY 12803-1025
PO BOX 1026, SOUTH GLENS FALLS, NY 12803-1026
PO BOX 1027, SOUTH GLENS FALLS, NY 12803-1027
PO BOX 1028, SOUTH GLENS FALLS, NY 12803-1028
PO BOX 1029, SOUTH GLENS FALLS, NY 12803-1029
PO BOX 1030, SOUTH GLENS FALLS, NY 12803-1030
PO BOX 1031, SOUTH GLENS FALLS, NY 12803-1031
PO BOX 1032, SOUTH GLENS FALLS, NY 12803-1032
PO BOX 1033, SOUTH GLENS FALLS, NY 12803-1033
PO BOX 1034, SOUTH GLENS FALLS, NY 12803-1034
PO BOX 1035, SOUTH GLENS FALLS, NY 12803-1035
PO BOX 1036, SOUTH GLENS FALLS, NY 12803-1036
PO BOX 1037, SOUTH GLENS FALLS, NY 12803-1037
PO BOX 1038, SOUTH GLENS FALLS, NY 12803-1038
PO BOX 1039, SOUTH GLENS FALLS, NY 12803-1039
PO BOX 1040, SOUTH GLENS FALLS, NY 12803-1040
PO BOX 1041, SOUTH GLENS FALLS, NY 12803-1041
PO BOX 1042, SOUTH GLENS FALLS, NY 12803-1042
PO BOX 1043, SOUTH GLENS FALLS, NY 12803-1043
PO BOX 1044, SOUTH GLENS FALLS, NY 12803-1044
PO BOX 1045, SOUTH GLENS FALLS, NY 12803-1045
PO BOX 1046, SOUTH GLENS FALLS, NY 12803-1046
PO BOX 1047, SOUTH GLENS FALLS, NY 12803-1047
PO BOX 1048, SOUTH GLENS FALLS, NY 12803-1048
PO BOX 1049, SOUTH GLENS FALLS, NY 12803-1049
PO BOX 1050, SOUTH GLENS FALLS, NY 12803-1050
PO BOX 1051, SOUTH GLENS FALLS, NY 12803-1051
PO BOX 1052, SOUTH GLENS FALLS, NY 12803-1052
PO BOX 1053, SOUTH GLENS FALLS, NY 12803-1053
PO BOX 1054, SOUTH GLENS FALLS, NY 12803-1054
PO BOX 1055, SOUTH GLENS FALLS, NY 12803-1055
PO BOX 1056, SOUTH GLENS FALLS, NY 12803-1056
PO BOX 1057, SOUTH GLENS FALLS, NY 12803-1057
PO BOX 1058, SOUTH GLENS FALLS, NY 12803-1058
PO BOX 1059, SOUTH GLENS FALLS, NY 12803-1059
PO BOX 1060, SOUTH GLENS FALLS, NY 12803-1060
PO BOX 1061, SOUTH GLENS FALLS, NY 12803-1061
PO BOX 1062, SOUTH GLENS FALLS, NY 12803-1062
PO BOX 1063, SOUTH GLENS FALLS, NY 12803-1063
PO BOX 1064, SOUTH GLENS FALLS, NY 12803-1064
PO BOX 1065, SOUTH GLENS FALLS, NY 12803-1065
PO BOX 1066, SOUTH GLENS FALLS, NY 12803-1066
PO BOX 1067, SOUTH GLENS FALLS, NY 12803-1067
PO BOX 1068, SOUTH GLENS FALLS, NY 12803-1068
PO BOX 1069, SOUTH GLENS FALLS, NY 12803-1069
PO BOX 1070, SOUTH GLENS FALLS, NY 12803-1070
PO BOX 1071, SOUTH GLENS FALLS, NY 12803-1071
PO BOX 1072, SOUTH GLENS FALLS, NY 12803-1072
PO BOX 1073, SOUTH GLENS FALLS, NY 12803-1073
PO BOX 1074, SOUTH GLENS FALLS, NY 12803-1074
PO BOX 1075, SOUTH GLENS FALLS, NY 12803-1075
PO BOX 1076, SOUTH GLENS FALLS, NY 12803-1076
PO BOX 1077, SOUTH GLENS FALLS, NY 12803-1077
PO BOX 1078, SOUTH GLENS FALLS, NY 12803-1078
PO BOX 1079, SOUTH GLENS FALLS, NY 12803-1079
PO BOX 1080, SOUTH GLENS FALLS, NY 12803-1080
PO BOX 1081, SOUTH GLENS FALLS, NY 12803-1081
PO BOX 1082, SOUTH GLENS FALLS, NY 12803-1082
PO BOX 1083, SOUTH GLENS FALLS, NY 12803-1083
PO BOX 1084, SOUTH GLENS FALLS, NY 12803-1084
PO BOX 1085, SOUTH GLENS FALLS, NY 12803-1085
PO BOX 1086, SOUTH GLENS FALLS, NY 12803-1086
PO BOX 1087, SOUTH GLENS FALLS, NY 12803-1087
PO BOX 1088, SOUTH GLENS FALLS, NY 12803-1088
PO BOX 1089, SOUTH GLENS FALLS, NY 12803-1089
PO BOX 1090, SOUTH GLENS FALLS, NY 12803-1090
PO BOX 1091, SOUTH GLENS FALLS, NY 12803-1091
PO BOX 1092, SOUTH GLENS FALLS, NY 12803-1092
PO BOX 1093, SOUTH GLENS FALLS, NY 12803-1093
PO BOX 1094, SOUTH GLENS FALLS, NY 12803-1094
PO BOX 1095, SOUTH GLENS FALLS, NY 12803-1095
PO BOX 1096, SOUTH GLENS FALLS, NY 12803-1096
PO BOX 1097, SOUTH GLENS FALLS, NY 12803-1097
PO BOX 1098, SOUTH GLENS FALLS, NY 12803-1098
PO BOX 1099, SOUTH GLENS FALLS, NY 12803-1099
PO BOX 1100, SOUTH GLENS FALLS, NY 12803-1100
PO BOX 1101, SOUTH GLENS FALLS, NY 12803-1101
PO BOX 1102, SOUTH GLENS FALLS, NY 12803-1102
PO BOX 1103, SOUTH GLENS FALLS, NY 12803-1103
PO BOX 1104, SOUTH GLENS FALLS, NY 12803-1104
PO BOX 1105, SOUTH GLENS FALLS, NY 12803-1105
PO BOX 1106, SOUTH GLENS FALLS, NY 12803-1106
PO BOX 1107, SOUTH GLENS FALLS, NY 12803-1107
PO BOX 1108, SOUTH GLENS FALLS, NY 12803-1108
PO BOX 1109, SOUTH GLENS FALLS, NY 12803-1109
PO BOX 1110, SOUTH GLENS FALLS, NY 12803-1110
PO BOX 1111, SOUTH GLENS FALLS, NY 12803-1111
PO BOX 1112, SOUTH GLENS FALLS, NY 12803-1112
PO BOX 1113, SOUTH GLENS FALLS, NY 12803-1113
PO BOX 1114, SOUTH GLENS FALLS, NY 12803-1114
PO BOX 1115, SOUTH GLENS FALLS, NY 12803-1115
PO BOX 1116, SOUTH GLENS FALLS, NY 12803-1116
PO BOX 1117, SOUTH GLENS FALLS, NY 12803-1117
PO BOX 1118, SOUTH GLENS FALLS, NY 12803-1118
PO BOX 1119, SOUTH GLENS FALLS, NY 12803-1119
PO BOX 1120, SOUTH GLENS FALLS, NY 12803-1120
PO BOX 1121, SOUTH GLENS FALLS, NY 12803-1121
PO BOX 1122, SOUTH GLENS FALLS, NY 12803-1122
PO BOX 1123, SOUTH GLENS FALLS, NY 12803-1123
PO BOX 1124, SOUTH GLENS FALLS, NY 12803-1124
PO BOX 1125, SOUTH GLENS FALLS, NY 12803-1125
PO BOX 1126, SOUTH GLENS FALLS, NY 12803-1126
PO BOX 1127, SOUTH GLENS FALLS, NY 12803-1127
PO BOX 1128, SOUTH GLENS FALLS, NY 12803-1128
PO BOX 1129, SOUTH GLENS FALLS, NY 12803-1129
PO BOX 1130, SOUTH GLENS FALLS, NY 12803-1130
PO BOX 1131, SOUTH GLENS FALLS, NY 12803-1131
PO BOX 1132, SOUTH GLENS FALLS, NY 12803-1132
PO BOX 1133, SOUTH GLENS FALLS, NY 12803-1133
PO BOX 1134, SOUTH GLENS FALLS, NY 12803-1134
PO BOX 1135, SOUTH GLENS FALLS, NY 12803-1135
PO BOX 1136, SOUTH GLENS FALLS, NY 12803-1136
PO BOX 1137, SOUTH GLENS FALLS, NY 12803-1137
PO BOX 1138, SOUTH GLENS FALLS, NY 12803-1138
PO BOX 1139, SOUTH GLENS FALLS, NY 12803-1139
PO BOX 1140, SOUTH GLENS FALLS, NY 12803-1140
PO BOX 1141, SOUTH GLENS FALLS, NY 12803-1141
PO BOX 1142, SOUTH GLENS FALLS, NY 12803-1142
PO BOX 1143, SOUTH GLENS FALLS, NY 12803-1143
PO BOX 1144, SOUTH GLENS FALLS, NY 12803-1144
PO BOX 1145, SOUTH GLENS FALLS, NY 12803-1145
PO BOX 1146, SOUTH GLENS FALLS, NY 12803-1146
PO BOX 1147, SOUTH GLENS FALLS, NY 12803-1147
PO BOX 1148, SOUTH GLENS FALLS, NY 12803-1148
PO BOX 1149, SOUTH GLENS FALLS, NY 12803-1149
PO BOX 1150, SOUTH GLENS FALLS, NY 12803-1150
PO BOX 1151, SOUTH GLENS FALLS, NY 12803-1151
PO BOX 1152, SOUTH GLENS FALLS, NY 12803-1152
PO BOX 1153, SOUTH GLENS FALLS, NY 12803-1153
PO BOX 1154, SOUTH GLENS FALLS, NY 12803-1154
PO BOX 1155, SOUTH GLENS FALLS, NY 12803-1155
PO BOX 1156, SOUTH GLENS FALLS, NY 12803-1156
PO BOX 1157, SOUTH GLENS FALLS, NY 12803-1157
PO BOX 1158, SOUTH GLENS FALLS, NY 12803-1158
PO BOX 1159, SOUTH GLENS FALLS, NY 12803-1159
PO BOX 1160, SOUTH GLENS FALLS, NY 12803-1160
PO BOX 1161, SOUTH GLENS FALLS, NY 12803-1161
PO BOX 1162, SOUTH GLENS FALLS, NY 12803-1162
PO BOX 1163, SOUTH GLENS FALLS, NY 12803-1163
PO BOX 1164, SOUTH GLENS FALLS, NY 12803-1164
PO BOX 1165, SOUTH GLENS FALLS, NY 12803-1165
PO BOX 1166, SOUTH GLENS FALLS, NY 12803-1166
PO BOX 1167, SOUTH GLENS FALLS, NY 12803-1167
PO BOX 1168, SOUTH GLENS FALLS, NY 12803-1168
PO BOX 1169, SOUTH GLENS FALLS, NY 12803-1169
PO BOX 1170, SOUTH GLENS FALLS, NY 12803-1170
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