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 1061, WHITE RIVER JUNCTION, VT 05001-1061
PO BOX 1062, WHITE RIVER JUNCTION, VT 05001-1062
PO BOX 1063, WHITE RIVER JUNCTION, VT 05001-1063
PO BOX 1064, WHITE RIVER JUNCTION, VT 05001-1064
PO BOX 1065, WHITE RIVER JUNCTION, VT 05001-1065
PO BOX 1066, WHITE RIVER JUNCTION, VT 05001-1066
PO BOX 1067, WHITE RIVER JUNCTION, VT 05001-1067
PO BOX 1068, WHITE RIVER JUNCTION, VT 05001-1068
PO BOX 1069, WHITE RIVER JUNCTION, VT 05001-1069
PO BOX 1070, WHITE RIVER JUNCTION, VT 05001-1070
PO BOX 1071, WHITE RIVER JUNCTION, VT 05001-1071
PO BOX 1072, WHITE RIVER JUNCTION, VT 05001-1072
PO BOX 1073, WHITE RIVER JUNCTION, VT 05001-1073
PO BOX 1074, WHITE RIVER JUNCTION, VT 05001-1074
PO BOX 1075, WHITE RIVER JUNCTION, VT 05001-1075
PO BOX 1076, WHITE RIVER JUNCTION, VT 05001-1076
PO BOX 1077, WHITE RIVER JUNCTION, VT 05001-1077
PO BOX 1078, WHITE RIVER JUNCTION, VT 05001-1078
PO BOX 1079, WHITE RIVER JUNCTION, VT 05001-1079
PO BOX 1080, WHITE RIVER JUNCTION, VT 05001-1080
PO BOX 1081, WHITE RIVER JUNCTION, VT 05001-1081
PO BOX 1082, WHITE RIVER JUNCTION, VT 05001-1082
PO BOX 1083, WHITE RIVER JUNCTION, VT 05001-1083
PO BOX 1084, WHITE RIVER JUNCTION, VT 05001-1084
PO BOX 1085, WHITE RIVER JUNCTION, VT 05001-1085
PO BOX 1086, WHITE RIVER JUNCTION, VT 05001-1086
PO BOX 1087, WHITE RIVER JUNCTION, VT 05001-1087
PO BOX 1088, WHITE RIVER JUNCTION, VT 05001-1088
PO BOX 1089, WHITE RIVER JUNCTION, VT 05001-1089
PO BOX 1090, WHITE RIVER JUNCTION, VT 05001-1090
PO BOX 1091, WHITE RIVER JUNCTION, VT 05001-1091
PO BOX 1092, WHITE RIVER JUNCTION, VT 05001-1092
PO BOX 1093, WHITE RIVER JUNCTION, VT 05001-1093
PO BOX 1094, WHITE RIVER JUNCTION, VT 05001-1094
PO BOX 1095, WHITE RIVER JUNCTION, VT 05001-1095
PO BOX 1096, WHITE RIVER JUNCTION, VT 05001-1096
PO BOX 1097, WHITE RIVER JUNCTION, VT 05001-1097
PO BOX 1098, WHITE RIVER JUNCTION, VT 05001-1098
PO BOX 1099, WHITE RIVER JUNCTION, VT 05001-1099
PO BOX 1100, WHITE RIVER JUNCTION, VT 05001-1100
PO BOX 1101, WHITE RIVER JUNCTION, VT 05001-1101
PO BOX 1102, WHITE RIVER JUNCTION, VT 05001-1102
PO BOX 1103, WHITE RIVER JUNCTION, VT 05001-1103
PO BOX 1104, WHITE RIVER JUNCTION, VT 05001-1104
PO BOX 1105, WHITE RIVER JUNCTION, VT 05001-1105
PO BOX 1106, WHITE RIVER JUNCTION, VT 05001-1106
PO BOX 1107, WHITE RIVER JUNCTION, VT 05001-1107
PO BOX 1108, WHITE RIVER JUNCTION, VT 05001-1108
PO BOX 1109, WHITE RIVER JUNCTION, VT 05001-1109
PO BOX 1110, WHITE RIVER JUNCTION, VT 05001-1110
PO BOX 1111, WHITE RIVER JUNCTION, VT 05001-1111
PO BOX 1112, WHITE RIVER JUNCTION, VT 05001-1112
PO BOX 1113, WHITE RIVER JUNCTION, VT 05001-1113
PO BOX 1114, WHITE RIVER JUNCTION, VT 05001-1114
PO BOX 1115, WHITE RIVER JUNCTION, VT 05001-1115
PO BOX 1116, WHITE RIVER JUNCTION, VT 05001-1116
PO BOX 1117, WHITE RIVER JUNCTION, VT 05001-1117
PO BOX 1118, WHITE RIVER JUNCTION, VT 05001-1118
PO BOX 1119, WHITE RIVER JUNCTION, VT 05001-1119
PO BOX 1120, WHITE RIVER JUNCTION, VT 05001-1120
PO BOX 1121, WHITE RIVER JUNCTION, VT 05001-1121
PO BOX 1122, WHITE RIVER JUNCTION, VT 05001-1122
PO BOX 1123, WHITE RIVER JUNCTION, VT 05001-1123
PO BOX 1124, WHITE RIVER JUNCTION, VT 05001-1124
PO BOX 1125, WHITE RIVER JUNCTION, VT 05001-1125
PO BOX 1126, WHITE RIVER JUNCTION, VT 05001-1126
PO BOX 1127, WHITE RIVER JUNCTION, VT 05001-1127
PO BOX 1128, WHITE RIVER JUNCTION, VT 05001-1128
PO BOX 1129, WHITE RIVER JUNCTION, VT 05001-1129
PO BOX 1130, WHITE RIVER JUNCTION, VT 05001-1130
PO BOX 1131, WHITE RIVER JUNCTION, VT 05001-1131
PO BOX 1132, WHITE RIVER JUNCTION, VT 05001-1132
PO BOX 1133, WHITE RIVER JUNCTION, VT 05001-1133
PO BOX 1134, WHITE RIVER JUNCTION, VT 05001-1134
PO BOX 1135, WHITE RIVER JUNCTION, VT 05001-1135
PO BOX 1136, WHITE RIVER JUNCTION, VT 05001-1136
PO BOX 1137, WHITE RIVER JUNCTION, VT 05001-1137
PO BOX 1138, WHITE RIVER JUNCTION, VT 05001-1138
PO BOX 1139, WHITE RIVER JUNCTION, VT 05001-1139
PO BOX 1140, WHITE RIVER JUNCTION, VT 05001-1140
PO BOX 1141, WHITE RIVER JUNCTION, VT 05001-1141
PO BOX 1142, WHITE RIVER JUNCTION, VT 05001-1142
PO BOX 1143, WHITE RIVER JUNCTION, VT 05001-1143
PO BOX 1144, WHITE RIVER JUNCTION, VT 05001-1144
PO BOX 1145, WHITE RIVER JUNCTION, VT 05001-1145
PO BOX 1146, WHITE RIVER JUNCTION, VT 05001-1146
PO BOX 1147, WHITE RIVER JUNCTION, VT 05001-1147
PO BOX 1148, WHITE RIVER JUNCTION, VT 05001-1148
PO BOX 1149, WHITE RIVER JUNCTION, VT 05001-1149
PO BOX 1150, WHITE RIVER JUNCTION, VT 05001-1150
PO BOX 1151, WHITE RIVER JUNCTION, VT 05001-1151
PO BOX 1152, WHITE RIVER JUNCTION, VT 05001-1152
PO BOX 1153, WHITE RIVER JUNCTION, VT 05001-1153
PO BOX 1154, WHITE RIVER JUNCTION, VT 05001-1154
PO BOX 1155, WHITE RIVER JUNCTION, VT 05001-1155
PO BOX 1156, WHITE RIVER JUNCTION, VT 05001-1156
PO BOX 1157, WHITE RIVER JUNCTION, VT 05001-1157
PO BOX 1158, WHITE RIVER JUNCTION, VT 05001-1158
PO BOX 1159, WHITE RIVER JUNCTION, VT 05001-1159
PO BOX 1160, WHITE RIVER JUNCTION, VT 05001-1160
PO BOX 1161, WHITE RIVER JUNCTION, VT 05001-1161
PO BOX 1162, WHITE RIVER JUNCTION, VT 05001-1162
PO BOX 1163, WHITE RIVER JUNCTION, VT 05001-1163
PO BOX 1164, WHITE RIVER JUNCTION, VT 05001-1164
PO BOX 1165, WHITE RIVER JUNCTION, VT 05001-1165
PO BOX 1166, WHITE RIVER JUNCTION, VT 05001-1166
PO BOX 1167, WHITE RIVER JUNCTION, VT 05001-1167
PO BOX 1168, WHITE RIVER JUNCTION, VT 05001-1168
PO BOX 1169, WHITE RIVER JUNCTION, VT 05001-1169
PO BOX 1170, WHITE RIVER JUNCTION, VT 05001-1170
PO BOX 1171, WHITE RIVER JUNCTION, VT 05001-1171
PO BOX 1172, WHITE RIVER JUNCTION, VT 05001-1172
PO BOX 1173, WHITE RIVER JUNCTION, VT 05001-1173
PO BOX 1174, WHITE RIVER JUNCTION, VT 05001-1174
PO BOX 1175, WHITE RIVER JUNCTION, VT 05001-1175
PO BOX 1176, WHITE RIVER JUNCTION, VT 05001-1176
PO BOX 1177, WHITE RIVER JUNCTION, VT 05001-1177
PO BOX 1178, WHITE RIVER JUNCTION, VT 05001-1178
PO BOX 1179, WHITE RIVER JUNCTION, VT 05001-1179
PO BOX 1180, WHITE RIVER JUNCTION, VT 05001-1180
PO BOX 1181, WHITE RIVER JUNCTION, VT 05001-1181
PO BOX 1182, WHITE RIVER JUNCTION, VT 05001-1182
PO BOX 1183, WHITE RIVER JUNCTION, VT 05001-1183
PO BOX 1184, WHITE RIVER JUNCTION, VT 05001-1184
PO BOX 1185, WHITE RIVER JUNCTION, VT 05001-1185
PO BOX 1186, WHITE RIVER JUNCTION, VT 05001-1186
PO BOX 1187, WHITE RIVER JUNCTION, VT 05001-1187
PO BOX 1188, WHITE RIVER JUNCTION, VT 05001-1188
PO BOX 1189, WHITE RIVER JUNCTION, VT 05001-1189
PO BOX 1190, WHITE RIVER JUNCTION, VT 05001-1190
PO BOX 1191, WHITE RIVER JUNCTION, VT 05001-1191
PO BOX 1192, WHITE RIVER JUNCTION, VT 05001-1192
PO BOX 1193, WHITE RIVER JUNCTION, VT 05001-1193
PO BOX 1194, WHITE RIVER JUNCTION, VT 05001-1194
PO BOX 1195, WHITE RIVER JUNCTION, VT 05001-1195
PO BOX 1196, WHITE RIVER JUNCTION, VT 05001-1196
PO BOX 1197, WHITE RIVER JUNCTION, VT 05001-1197
PO BOX 1198, WHITE RIVER JUNCTION, VT 05001-1198
PO BOX 1199, WHITE RIVER JUNCTION, VT 05001-1199
PO BOX 1200, WHITE RIVER JUNCTION, VT 05001-1200
PO BOX 1201, WHITE RIVER JUNCTION, VT 05001-1201
PO BOX 1202, WHITE RIVER JUNCTION, VT 05001-1202
PO BOX 1203, WHITE RIVER JUNCTION, VT 05001-1203
PO BOX 1204, WHITE RIVER JUNCTION, VT 05001-1204
PO BOX 1205, WHITE RIVER JUNCTION, VT 05001-1205
PO BOX 1206, WHITE RIVER JUNCTION, VT 05001-1206
PO BOX 1207, WHITE RIVER JUNCTION, VT 05001-1207
PO BOX 1208, WHITE RIVER JUNCTION, VT 05001-1208
PO BOX 1209, WHITE RIVER JUNCTION, VT 05001-1209
PO BOX 1210, WHITE RIVER JUNCTION, VT 05001-1210
PO BOX 1211, WHITE RIVER JUNCTION, VT 05001-1211
PO BOX 1212, WHITE RIVER JUNCTION, VT 05001-1212
PO BOX 1213, WHITE RIVER JUNCTION, VT 05001-1213
PO BOX 1214, WHITE RIVER JUNCTION, VT 05001-1214
PO BOX 1215, WHITE RIVER JUNCTION, VT 05001-1215
PO BOX 1216, WHITE RIVER JUNCTION, VT 05001-1216
PO BOX 1217, WHITE RIVER JUNCTION, VT 05001-1217
PO BOX 1218, WHITE RIVER JUNCTION, VT 05001-1218
PO BOX 1219, WHITE RIVER JUNCTION, VT 05001-1219
PO BOX 1220, WHITE RIVER JUNCTION, VT 05001-1220
PO BOX 1221, WHITE RIVER JUNCTION, VT 05001-1221
PO BOX 1222, WHITE RIVER JUNCTION, VT 05001-1222
PO BOX 1223, WHITE RIVER JUNCTION, VT 05001-1223
PO BOX 1224, WHITE RIVER JUNCTION, VT 05001-1224
PO BOX 1225, WHITE RIVER JUNCTION, VT 05001-1225
PO BOX 1226, WHITE RIVER JUNCTION, VT 05001-1226
PO BOX 1227, WHITE RIVER JUNCTION, VT 05001-1227
PO BOX 1228, WHITE RIVER JUNCTION, VT 05001-1228
PO BOX 1229, WHITE RIVER JUNCTION, VT 05001-1229
PO BOX 1230, WHITE RIVER JUNCTION, VT 05001-1230
PO BOX 1231, WHITE RIVER JUNCTION, VT 05001-1231
PO BOX 1232, WHITE RIVER JUNCTION, VT 05001-1232
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