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 1041, PLAINFIELD, NJ 07061-1041
PO BOX 1042, PLAINFIELD, NJ 07061-1042
PO BOX 1043, PLAINFIELD, NJ 07061-1043
PO BOX 1044, PLAINFIELD, NJ 07061-1044
PO BOX 1045, PLAINFIELD, NJ 07061-1045
PO BOX 1046, PLAINFIELD, NJ 07061-1046
PO BOX 1047, PLAINFIELD, NJ 07061-1047
PO BOX 1048, PLAINFIELD, NJ 07061-1048
PO BOX 1049, PLAINFIELD, NJ 07061-1049
PO BOX 1050, PLAINFIELD, NJ 07061-1050
PO BOX 1051, PLAINFIELD, NJ 07061-1051
PO BOX 1052, PLAINFIELD, NJ 07061-1052
PO BOX 1053, PLAINFIELD, NJ 07061-1053
PO BOX 1054, PLAINFIELD, NJ 07061-1054
PO BOX 1055, PLAINFIELD, NJ 07061-1055
PO BOX 1056, PLAINFIELD, NJ 07061-1056
PO BOX 1057, PLAINFIELD, NJ 07061-1057
PO BOX 1058, PLAINFIELD, NJ 07061-1058
PO BOX 1059, PLAINFIELD, NJ 07061-1059
PO BOX 1060, PLAINFIELD, NJ 07061-1060
PO BOX 1061, PLAINFIELD, NJ 07061-1061
PO BOX 1062, PLAINFIELD, NJ 07061-1062
PO BOX 1063, PLAINFIELD, NJ 07061-1063
PO BOX 1064, PLAINFIELD, NJ 07061-1064
PO BOX 1065, PLAINFIELD, NJ 07061-1065
PO BOX 1066, PLAINFIELD, NJ 07061-1066
PO BOX 1067, PLAINFIELD, NJ 07061-1067
PO BOX 1068, PLAINFIELD, NJ 07061-1068
PO BOX 1069, PLAINFIELD, NJ 07061-1069
PO BOX 1070, PLAINFIELD, NJ 07061-1070
PO BOX 1071, PLAINFIELD, NJ 07061-1071
PO BOX 1072, PLAINFIELD, NJ 07061-1072
PO BOX 1073, PLAINFIELD, NJ 07061-1073
PO BOX 1074, PLAINFIELD, NJ 07061-1074
PO BOX 1075, PLAINFIELD, NJ 07061-1075
PO BOX 1076, PLAINFIELD, NJ 07061-1076
PO BOX 1077, PLAINFIELD, NJ 07061-1077
PO BOX 1078, PLAINFIELD, NJ 07061-1078
PO BOX 1079, PLAINFIELD, NJ 07061-1079
PO BOX 1080, PLAINFIELD, NJ 07061-1080
PO BOX 1081, PLAINFIELD, NJ 07061-1081
PO BOX 1082, PLAINFIELD, NJ 07061-1082
PO BOX 1083, PLAINFIELD, NJ 07061-1083
PO BOX 1084, PLAINFIELD, NJ 07061-1084
PO BOX 1085, PLAINFIELD, NJ 07061-1085
PO BOX 1086, PLAINFIELD, NJ 07061-1086
PO BOX 1087, PLAINFIELD, NJ 07061-1087
PO BOX 1088, PLAINFIELD, NJ 07061-1088
PO BOX 1089, PLAINFIELD, NJ 07061-1089
PO BOX 1090, PLAINFIELD, NJ 07061-1090
PO BOX 1091, PLAINFIELD, NJ 07061-1091
PO BOX 1092, PLAINFIELD, NJ 07061-1092
PO BOX 1093, PLAINFIELD, NJ 07061-1093
PO BOX 1094, PLAINFIELD, NJ 07061-1094
PO BOX 1095, PLAINFIELD, NJ 07061-1095
PO BOX 1096, PLAINFIELD, NJ 07061-1096
PO BOX 1097, PLAINFIELD, NJ 07061-1097
PO BOX 1098, PLAINFIELD, NJ 07061-1098
PO BOX 1099, PLAINFIELD, NJ 07061-1099
PO BOX 1100, PLAINFIELD, NJ 07061-1100
PO BOX 1101, PLAINFIELD, NJ 07061-1101
PO BOX 1102, PLAINFIELD, NJ 07061-1102
PO BOX 1103, PLAINFIELD, NJ 07061-1103
PO BOX 1104, PLAINFIELD, NJ 07061-1104
PO BOX 1105, PLAINFIELD, NJ 07061-1105
PO BOX 1106, PLAINFIELD, NJ 07061-1106
PO BOX 1107, PLAINFIELD, NJ 07061-1107
PO BOX 1108, PLAINFIELD, NJ 07061-1108
PO BOX 1109, PLAINFIELD, NJ 07061-1109
PO BOX 1110, PLAINFIELD, NJ 07061-1110
PO BOX 1111, PLAINFIELD, NJ 07061-1111
PO BOX 1112, PLAINFIELD, NJ 07061-1112
PO BOX 1113, PLAINFIELD, NJ 07061-1113
PO BOX 1114, PLAINFIELD, NJ 07061-1114
PO BOX 1115, PLAINFIELD, NJ 07061-1115
PO BOX 1116, PLAINFIELD, NJ 07061-1116
PO BOX 1117, PLAINFIELD, NJ 07061-1117
PO BOX 1118, PLAINFIELD, NJ 07061-1118
PO BOX 1119, PLAINFIELD, NJ 07061-1119
PO BOX 1120, PLAINFIELD, NJ 07061-1120
PO BOX 1121, PLAINFIELD, NJ 07061-1121
PO BOX 1122, PLAINFIELD, NJ 07061-1122
PO BOX 1123, PLAINFIELD, NJ 07061-1123
PO BOX 1124, PLAINFIELD, NJ 07061-1124
PO BOX 1125, PLAINFIELD, NJ 07061-1125
PO BOX 1126, PLAINFIELD, NJ 07061-1126
PO BOX 1127, PLAINFIELD, NJ 07061-1127
PO BOX 1128, PLAINFIELD, NJ 07061-1128
PO BOX 1129, PLAINFIELD, NJ 07061-1129
PO BOX 1130, PLAINFIELD, NJ 07061-1130
PO BOX 1131, PLAINFIELD, NJ 07061-1131
PO BOX 1132, PLAINFIELD, NJ 07061-1132
PO BOX 1133, PLAINFIELD, NJ 07061-1133
PO BOX 1134, PLAINFIELD, NJ 07061-1134
PO BOX 1135, PLAINFIELD, NJ 07061-1135
PO BOX 1136, PLAINFIELD, NJ 07061-1136
PO BOX 1137, PLAINFIELD, NJ 07061-1137
PO BOX 1138, PLAINFIELD, NJ 07061-1138
PO BOX 1139, PLAINFIELD, NJ 07061-1139
PO BOX 1140, PLAINFIELD, NJ 07061-1140
PO BOX 1141, PLAINFIELD, NJ 07061-1141
PO BOX 1142, PLAINFIELD, NJ 07061-1142
PO BOX 1143, PLAINFIELD, NJ 07061-1143
PO BOX 1144, PLAINFIELD, NJ 07061-1144
PO BOX 1145, PLAINFIELD, NJ 07061-1145
PO BOX 1146, PLAINFIELD, NJ 07061-1146
PO BOX 1147, PLAINFIELD, NJ 07061-1147
PO BOX 1148, PLAINFIELD, NJ 07061-1148
PO BOX 1149, PLAINFIELD, NJ 07061-1149
PO BOX 1150, PLAINFIELD, NJ 07061-1150
PO BOX 1151, PLAINFIELD, NJ 07061-1151
PO BOX 1152, PLAINFIELD, NJ 07061-1152
PO BOX 1153, PLAINFIELD, NJ 07061-1153
PO BOX 1154, PLAINFIELD, NJ 07061-1154
PO BOX 1155, PLAINFIELD, NJ 07061-1155
PO BOX 1156, PLAINFIELD, NJ 07061-1156
PO BOX 1157, PLAINFIELD, NJ 07061-1157
PO BOX 1158, PLAINFIELD, NJ 07061-1158
PO BOX 1159, PLAINFIELD, NJ 07061-1159
PO BOX 1160, PLAINFIELD, NJ 07061-1160
PO BOX 1161, PLAINFIELD, NJ 07061-1161
PO BOX 1162, PLAINFIELD, NJ 07061-1162
PO BOX 1163, PLAINFIELD, NJ 07061-1163
PO BOX 1164, PLAINFIELD, NJ 07061-1164
PO BOX 1165, PLAINFIELD, NJ 07061-1165
PO BOX 1166, PLAINFIELD, NJ 07061-1166
PO BOX 1167, PLAINFIELD, NJ 07061-1167
PO BOX 1168, PLAINFIELD, NJ 07061-1168
PO BOX 1169, PLAINFIELD, NJ 07061-1169
PO BOX 1170, PLAINFIELD, NJ 07061-1170
PO BOX 1171, PLAINFIELD, NJ 07061-1171
PO BOX 1172, PLAINFIELD, NJ 07061-1172
PO BOX 1173, PLAINFIELD, NJ 07061-1173
PO BOX 1174, PLAINFIELD, NJ 07061-1174
PO BOX 1175, PLAINFIELD, NJ 07061-1175
PO BOX 1176, PLAINFIELD, NJ 07061-1176
PO BOX 1177, PLAINFIELD, NJ 07061-1177
PO BOX 1178, PLAINFIELD, NJ 07061-1178
PO BOX 1179, PLAINFIELD, NJ 07061-1179
PO BOX 1180, PLAINFIELD, NJ 07061-1180
PO BOX 1181, PLAINFIELD, NJ 07061-1181
PO BOX 1182, PLAINFIELD, NJ 07061-1182
PO BOX 1183, PLAINFIELD, NJ 07061-1183
PO BOX 1184, PLAINFIELD, NJ 07061-1184
PO BOX 1185, PLAINFIELD, NJ 07061-1185
PO BOX 1186, PLAINFIELD, NJ 07061-1186
PO BOX 1187, PLAINFIELD, NJ 07061-1187
PO BOX 1188, PLAINFIELD, NJ 07061-1188
PO BOX 1189, PLAINFIELD, NJ 07061-1189
PO BOX 1190, PLAINFIELD, NJ 07061-1190
PO BOX 1191, PLAINFIELD, NJ 07061-1191
PO BOX 1192, PLAINFIELD, NJ 07061-1192
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