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 1021, LEE VINING, CA 93541-1021
PO BOX 1022, LEE VINING, CA 93541-1022
PO BOX 1023, LEE VINING, CA 93541-1023
PO BOX 1024, LEE VINING, CA 93541-1024
PO BOX 1025, LEE VINING, CA 93541-1025
PO BOX 1026, LEE VINING, CA 93541-1026
PO BOX 1027, LEE VINING, CA 93541-1027
PO BOX 1028, LEE VINING, CA 93541-1028
PO BOX 1029, LEE VINING, CA 93541-1029
PO BOX 1030, LEE VINING, CA 93541-1030
PO BOX 1031, LEE VINING, CA 93541-1031
PO BOX 1032, LEE VINING, CA 93541-1032
PO BOX 1033, LEE VINING, CA 93541-1033
PO BOX 1034, LEE VINING, CA 93541-1034
PO BOX 1035, LEE VINING, CA 93541-1035
PO BOX 1036, LEE VINING, CA 93541-1036
PO BOX 1037, LEE VINING, CA 93541-1037
PO BOX 1038, LEE VINING, CA 93541-1038
PO BOX 1039, LEE VINING, CA 93541-1039
PO BOX 1040, LEE VINING, CA 93541-1040
PO BOX 1041, LEE VINING, CA 93541-1041
PO BOX 1042, LEE VINING, CA 93541-1042
PO BOX 1043, LEE VINING, CA 93541-1043
PO BOX 1044, LEE VINING, CA 93541-1044
PO BOX 1045, LEE VINING, CA 93541-1045
PO BOX 1046, LEE VINING, CA 93541-1046
PO BOX 1047, LEE VINING, CA 93541-1047
PO BOX 1048, LEE VINING, CA 93541-1048
PO BOX 1049, LEE VINING, CA 93541-1049
PO BOX 1050, LEE VINING, CA 93541-1050
PO BOX 1051, LEE VINING, CA 93541-1051
PO BOX 1052, LEE VINING, CA 93541-1052
PO BOX 1053, LEE VINING, CA 93541-1053
PO BOX 1054, LEE VINING, CA 93541-1054
PO BOX 1055, LEE VINING, CA 93541-1055
PO BOX 1056, LEE VINING, CA 93541-1056
PO BOX 1057, LEE VINING, CA 93541-1057
PO BOX 1058, LEE VINING, CA 93541-1058
PO BOX 1059, LEE VINING, CA 93541-1059
PO BOX 1060, LEE VINING, CA 93541-1060
PO BOX 1061, LEE VINING, CA 93541-1061
PO BOX 1062, LEE VINING, CA 93541-1062
PO BOX 1063, LEE VINING, CA 93541-1063
PO BOX 1064, LEE VINING, CA 93541-1064
PO BOX 1065, LEE VINING, CA 93541-1065
PO BOX 1066, LEE VINING, CA 93541-1066
PO BOX 1067, LEE VINING, CA 93541-1067
PO BOX 1068, LEE VINING, CA 93541-1068
PO BOX 1069, LEE VINING, CA 93541-1069
PO BOX 1070, LEE VINING, CA 93541-1070
PO BOX 1071, LEE VINING, CA 93541-1071
PO BOX 1072, LEE VINING, CA 93541-1072
PO BOX 1073, LEE VINING, CA 93541-1073
PO BOX 1074, LEE VINING, CA 93541-1074
PO BOX 1075, LEE VINING, CA 93541-1075
PO BOX 1076, LEE VINING, CA 93541-1076
PO BOX 1077, LEE VINING, CA 93541-1077
PO BOX 1078, LEE VINING, CA 93541-1078
PO BOX 1079, LEE VINING, CA 93541-1079
PO BOX 1080, LEE VINING, CA 93541-1080
PO BOX 1081, LEE VINING, CA 93541-1081
PO BOX 1082, LEE VINING, CA 93541-1082
PO BOX 1083, LEE VINING, CA 93541-1083
PO BOX 1084, LEE VINING, CA 93541-1084
PO BOX 1085, LEE VINING, CA 93541-1085
PO BOX 1086, LEE VINING, CA 93541-1086
PO BOX 1087, LEE VINING, CA 93541-1087
PO BOX 1088, LEE VINING, CA 93541-1088
PO BOX 1089, LEE VINING, CA 93541-1089
PO BOX 1090, LEE VINING, CA 93541-1090
PO BOX 1091, LEE VINING, CA 93541-1091
PO BOX 1092, LEE VINING, CA 93541-1092
PO BOX 1093, LEE VINING, CA 93541-1093
PO BOX 1094, LEE VINING, CA 93541-1094
PO BOX 1095, LEE VINING, CA 93541-1095
PO BOX 1096, LEE VINING, CA 93541-1096
PO BOX 1097, LEE VINING, CA 93541-1097
PO BOX 1098, LEE VINING, CA 93541-1098
PO BOX 1099, LEE VINING, CA 93541-1099
PO BOX 1100, LEE VINING, CA 93541-1100
PO BOX 1101, LEE VINING, CA 93541-1101
PO BOX 1102, LEE VINING, CA 93541-1102
PO BOX 1103, LEE VINING, CA 93541-1103
PO BOX 1104, LEE VINING, CA 93541-1104
PO BOX 1105, LEE VINING, CA 93541-1105
PO BOX 1106, LEE VINING, CA 93541-1106
PO BOX 1107, LEE VINING, CA 93541-1107
PO BOX 1108, LEE VINING, CA 93541-1108
PO BOX 1109, LEE VINING, CA 93541-1109
PO BOX 1110, LEE VINING, CA 93541-1110
PO BOX 1111, LEE VINING, CA 93541-1111
PO BOX 1112, LEE VINING, CA 93541-1112
PO BOX 1113, LEE VINING, CA 93541-1113
PO BOX 1114, LEE VINING, CA 93541-1114
PO BOX 1115, LEE VINING, CA 93541-1115
PO BOX 1116, LEE VINING, CA 93541-1116
PO BOX 1117, LEE VINING, CA 93541-1117
PO BOX 1118, LEE VINING, CA 93541-1118
PO BOX 1119, LEE VINING, CA 93541-1119
PO BOX 1120, LEE VINING, CA 93541-1120
PO BOX 1121, LEE VINING, CA 93541-1121
PO BOX 1122, LEE VINING, CA 93541-1122
PO BOX 1123, LEE VINING, CA 93541-1123
PO BOX 1124, LEE VINING, CA 93541-1124
PO BOX 1125, LEE VINING, CA 93541-1125
PO BOX 1126, LEE VINING, CA 93541-1126
PO BOX 1127, LEE VINING, CA 93541-1127
PO BOX 1128, LEE VINING, CA 93541-1128
PO BOX 1129, LEE VINING, CA 93541-1129
PO BOX 1130, LEE VINING, CA 93541-1130
PO BOX 1131, LEE VINING, CA 93541-1131
PO BOX 1132, LEE VINING, CA 93541-1132
PO BOX 1133, LEE VINING, CA 93541-1133
PO BOX 1134, LEE VINING, CA 93541-1134
PO BOX 1135, LEE VINING, CA 93541-1135
PO BOX 1136, LEE VINING, CA 93541-1136
PO BOX 1137, LEE VINING, CA 93541-1137
PO BOX 1138, LEE VINING, CA 93541-1138
PO BOX 1139, LEE VINING, CA 93541-1139
PO BOX 1140, LEE VINING, CA 93541-1140
PO BOX 1141, LEE VINING, CA 93541-1141
PO BOX 1142, LEE VINING, CA 93541-1142
PO BOX 1143, LEE VINING, CA 93541-1143
PO BOX 1144, LEE VINING, CA 93541-1144
PO BOX 1145, LEE VINING, CA 93541-1145
PO BOX 1146, LEE VINING, CA 93541-1146
PO BOX 1147, LEE VINING, CA 93541-1147
PO BOX 1148, LEE VINING, CA 93541-1148
PO BOX 1149, LEE VINING, CA 93541-1149
PO BOX 1150, LEE VINING, CA 93541-1150
PO BOX 1151, LEE VINING, CA 93541-1151
PO BOX 1152, LEE VINING, CA 93541-1152
PO BOX 1153, LEE VINING, CA 93541-1153
PO BOX 1154, LEE VINING, CA 93541-1154
PO BOX 1155, LEE VINING, CA 93541-1155
PO BOX 1156, LEE VINING, CA 93541-1156
PO BOX 1157, LEE VINING, CA 93541-1157
PO BOX 1158, LEE VINING, CA 93541-1158
PO BOX 1159, LEE VINING, CA 93541-1159
PO BOX 1160, LEE VINING, CA 93541-1160
PO BOX 1161, LEE VINING, CA 93541-1161
PO BOX 1162, LEE VINING, CA 93541-1162
PO BOX 1163, LEE VINING, CA 93541-1163
PO BOX 1164, LEE VINING, CA 93541-1164
PO BOX 1165, LEE VINING, CA 93541-1165
PO BOX 1166, LEE VINING, CA 93541-1166
PO BOX 1167, LEE VINING, CA 93541-1167
PO BOX 1168, LEE VINING, CA 93541-1168
PO BOX 1169, LEE VINING, CA 93541-1169
PO BOX 1170, LEE VINING, CA 93541-1170
PO BOX 1171, LEE VINING, CA 93541-1171
PO BOX 1172, LEE VINING, CA 93541-1172
PO BOX 1173, LEE VINING, CA 93541-1173
PO BOX 1174, LEE VINING, CA 93541-1174
PO BOX 1175, LEE VINING, CA 93541-1175
PO BOX 1176, LEE VINING, CA 93541-1176
PO BOX 1177, LEE VINING, CA 93541-1177
PO BOX 1178, LEE VINING, CA 93541-1178
PO BOX 1179, LEE VINING, CA 93541-1179
PO BOX 1180, LEE VINING, CA 93541-1180
PO BOX 1181, LEE VINING, CA 93541-1181
PO BOX 1182, LEE VINING, CA 93541-1182
PO BOX 1183, LEE VINING, CA 93541-1183
PO BOX 1184, LEE VINING, CA 93541-1184
PO BOX 1185, LEE VINING, CA 93541-1185
PO BOX 1186, LEE VINING, CA 93541-1186
PO BOX 1187, LEE VINING, CA 93541-1187
PO BOX 1188, LEE VINING, CA 93541-1188
PO BOX 1189, LEE VINING, CA 93541-1189
PO BOX 1190, LEE VINING, CA 93541-1190
PO BOX 1191, LEE VINING, CA 93541-1191
PO BOX 1192, LEE VINING, CA 93541-1192
PO BOX 1193, LEE VINING, CA 93541-1193
PO BOX 1194, LEE VINING, CA 93541-1194
PO BOX 1195, LEE VINING, CA 93541-1195
PO BOX 1196, LEE VINING, CA 93541-1196
PO BOX 1197, LEE VINING, CA 93541-1197
PO BOX 1198, LEE VINING, CA 93541-1198
PO BOX 1199, LEE VINING, CA 93541-1199
PO BOX 1200, LEE VINING, CA 93541-1200
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