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, CLIFFSIDE PARK, NJ 07010-5001
PO BOX 1002, CLIFFSIDE PARK, NJ 07010-5002
PO BOX 1003, CLIFFSIDE PARK, NJ 07010-5003
PO BOX 1004, CLIFFSIDE PARK, NJ 07010-5004
PO BOX 1005, CLIFFSIDE PARK, NJ 07010-5005
PO BOX 1006, CLIFFSIDE PARK, NJ 07010-5006
PO BOX 1007, CLIFFSIDE PARK, NJ 07010-5007
PO BOX 1008, CLIFFSIDE PARK, NJ 07010-5008
PO BOX 1009, CLIFFSIDE PARK, NJ 07010-5009
PO BOX 1010, CLIFFSIDE PARK, NJ 07010-5010
PO BOX 1011, CLIFFSIDE PARK, NJ 07010-5011
PO BOX 1012, CLIFFSIDE PARK, NJ 07010-5012
PO BOX 1013, CLIFFSIDE PARK, NJ 07010-5013
PO BOX 1014, CLIFFSIDE PARK, NJ 07010-5014
PO BOX 1015, CLIFFSIDE PARK, NJ 07010-5015
PO BOX 1016, CLIFFSIDE PARK, NJ 07010-5016
PO BOX 1017, CLIFFSIDE PARK, NJ 07010-5017
PO BOX 1018, CLIFFSIDE PARK, NJ 07010-5018
PO BOX 1019, CLIFFSIDE PARK, NJ 07010-5019
PO BOX 1020, CLIFFSIDE PARK, NJ 07010-5020
PO BOX 1021, CLIFFSIDE PARK, NJ 07010-5021
PO BOX 1022, CLIFFSIDE PARK, NJ 07010-5022
PO BOX 1023, CLIFFSIDE PARK, NJ 07010-5023
PO BOX 1024, CLIFFSIDE PARK, NJ 07010-5024
PO BOX 1025, CLIFFSIDE PARK, NJ 07010-5025
PO BOX 1026, CLIFFSIDE PARK, NJ 07010-5026
PO BOX 1027, CLIFFSIDE PARK, NJ 07010-5027
PO BOX 1028, CLIFFSIDE PARK, NJ 07010-5028
PO BOX 1029, CLIFFSIDE PARK, NJ 07010-5029
PO BOX 1030, CLIFFSIDE PARK, NJ 07010-5030
PO BOX 1031, CLIFFSIDE PARK, NJ 07010-5031
PO BOX 1032, CLIFFSIDE PARK, NJ 07010-5032
PO BOX 1033, CLIFFSIDE PARK, NJ 07010-5033
PO BOX 1034, CLIFFSIDE PARK, NJ 07010-5034
PO BOX 1035, CLIFFSIDE PARK, NJ 07010-5035
PO BOX 1036, CLIFFSIDE PARK, NJ 07010-5036
PO BOX 1037, CLIFFSIDE PARK, NJ 07010-5037
PO BOX 1038, CLIFFSIDE PARK, NJ 07010-5038
PO BOX 1039, CLIFFSIDE PARK, NJ 07010-5039
PO BOX 1040, CLIFFSIDE PARK, NJ 07010-5040
PO BOX 1041, CLIFFSIDE PARK, NJ 07010-5041
PO BOX 1042, CLIFFSIDE PARK, NJ 07010-5042
PO BOX 1043, CLIFFSIDE PARK, NJ 07010-5043
PO BOX 1044, CLIFFSIDE PARK, NJ 07010-5044
PO BOX 1045, CLIFFSIDE PARK, NJ 07010-5045
PO BOX 1046, CLIFFSIDE PARK, NJ 07010-5046
PO BOX 1047, CLIFFSIDE PARK, NJ 07010-5047
PO BOX 1048, CLIFFSIDE PARK, NJ 07010-5048
PO BOX 1049, CLIFFSIDE PARK, NJ 07010-5049
PO BOX 1050, CLIFFSIDE PARK, NJ 07010-5050
PO BOX 1051, CLIFFSIDE PARK, NJ 07010-5051
PO BOX 1052, CLIFFSIDE PARK, NJ 07010-5052
PO BOX 1053, CLIFFSIDE PARK, NJ 07010-5053
PO BOX 1054, CLIFFSIDE PARK, NJ 07010-5054
PO BOX 1055, CLIFFSIDE PARK, NJ 07010-5055
PO BOX 1056, CLIFFSIDE PARK, NJ 07010-5056
PO BOX 1057, CLIFFSIDE PARK, NJ 07010-5057
PO BOX 1058, CLIFFSIDE PARK, NJ 07010-5058
PO BOX 1059, CLIFFSIDE PARK, NJ 07010-5059
PO BOX 1060, CLIFFSIDE PARK, NJ 07010-5060
PO BOX 1061, CLIFFSIDE PARK, NJ 07010-5061
PO BOX 1062, CLIFFSIDE PARK, NJ 07010-5062
PO BOX 1063, CLIFFSIDE PARK, NJ 07010-5063
PO BOX 1064, CLIFFSIDE PARK, NJ 07010-5064
PO BOX 1065, CLIFFSIDE PARK, NJ 07010-5065
PO BOX 1066, CLIFFSIDE PARK, NJ 07010-5066
PO BOX 1067, CLIFFSIDE PARK, NJ 07010-5067
PO BOX 1068, CLIFFSIDE PARK, NJ 07010-5068
PO BOX 1069, CLIFFSIDE PARK, NJ 07010-5069
PO BOX 1070, CLIFFSIDE PARK, NJ 07010-5070
PO BOX 1071, CLIFFSIDE PARK, NJ 07010-5071
PO BOX 1072, CLIFFSIDE PARK, NJ 07010-5072
PO BOX 1073, CLIFFSIDE PARK, NJ 07010-5073
PO BOX 1074, CLIFFSIDE PARK, NJ 07010-5074
PO BOX 1075, CLIFFSIDE PARK, NJ 07010-5075
PO BOX 1076, CLIFFSIDE PARK, NJ 07010-5076
PO BOX 1077, CLIFFSIDE PARK, NJ 07010-5077
PO BOX 1078, CLIFFSIDE PARK, NJ 07010-5078
PO BOX 1079, CLIFFSIDE PARK, NJ 07010-5079
PO BOX 1080, CLIFFSIDE PARK, NJ 07010-5080
PO BOX 1081, CLIFFSIDE PARK, NJ 07010-5081
PO BOX 1082, CLIFFSIDE PARK, NJ 07010-5082
PO BOX 1083, CLIFFSIDE PARK, NJ 07010-5083
PO BOX 1084, CLIFFSIDE PARK, NJ 07010-5084
PO BOX 1085, CLIFFSIDE PARK, NJ 07010-5085
PO BOX 1086, CLIFFSIDE PARK, NJ 07010-5086
PO BOX 1087, CLIFFSIDE PARK, NJ 07010-5087
PO BOX 1088, CLIFFSIDE PARK, NJ 07010-5088
PO BOX 1089, CLIFFSIDE PARK, NJ 07010-5089
PO BOX 1090, CLIFFSIDE PARK, NJ 07010-5090
PO BOX 1091, CLIFFSIDE PARK, NJ 07010-5091
PO BOX 1092, CLIFFSIDE PARK, NJ 07010-5092
PO BOX 1093, CLIFFSIDE PARK, NJ 07010-5093
PO BOX 1094, CLIFFSIDE PARK, NJ 07010-5094
PO BOX 1095, CLIFFSIDE PARK, NJ 07010-5095
PO BOX 1096, CLIFFSIDE PARK, NJ 07010-5096
PO BOX 1097, CLIFFSIDE PARK, NJ 07010-5097
PO BOX 1098, CLIFFSIDE PARK, NJ 07010-5098
PO BOX 1099, CLIFFSIDE PARK, NJ 07010-5099
PO BOX 1100, CLIFFSIDE PARK, NJ 07010-5100
PO BOX 1101, CLIFFSIDE PARK, NJ 07010-5101
PO BOX 1102, CLIFFSIDE PARK, NJ 07010-5102
PO BOX 1103, CLIFFSIDE PARK, NJ 07010-5103
PO BOX 1104, CLIFFSIDE PARK, NJ 07010-5104
PO BOX 1105, CLIFFSIDE PARK, NJ 07010-5105
PO BOX 1106, CLIFFSIDE PARK, NJ 07010-5106
PO BOX 1107, CLIFFSIDE PARK, NJ 07010-5107
PO BOX 1108, CLIFFSIDE PARK, NJ 07010-5108
PO BOX 1109, CLIFFSIDE PARK, NJ 07010-5109
PO BOX 1110, CLIFFSIDE PARK, NJ 07010-5110
PO BOX 1111, CLIFFSIDE PARK, NJ 07010-5111
PO BOX 1112, CLIFFSIDE PARK, NJ 07010-5112
PO BOX 1113, CLIFFSIDE PARK, NJ 07010-5113
PO BOX 1114, CLIFFSIDE PARK, NJ 07010-5114
PO BOX 1115, CLIFFSIDE PARK, NJ 07010-5115
PO BOX 1116, CLIFFSIDE PARK, NJ 07010-5116
PO BOX 1117, CLIFFSIDE PARK, NJ 07010-5117
PO BOX 1118, CLIFFSIDE PARK, NJ 07010-5118
PO BOX 1119, CLIFFSIDE PARK, NJ 07010-5119
PO BOX 1120, CLIFFSIDE PARK, NJ 07010-5120
PO BOX 1121, CLIFFSIDE PARK, NJ 07010-5121
PO BOX 1122, CLIFFSIDE PARK, NJ 07010-5122
PO BOX 1123, CLIFFSIDE PARK, NJ 07010-5123
PO BOX 1124, CLIFFSIDE PARK, NJ 07010-5124
PO BOX 1125, CLIFFSIDE PARK, NJ 07010-5125
PO BOX 1126, CLIFFSIDE PARK, NJ 07010-5126
PO BOX 1127, CLIFFSIDE PARK, NJ 07010-5127
PO BOX 1128, CLIFFSIDE PARK, NJ 07010-5128
PO BOX 1129, CLIFFSIDE PARK, NJ 07010-5129
PO BOX 1130, CLIFFSIDE PARK, NJ 07010-5130
PO BOX 1131, CLIFFSIDE PARK, NJ 07010-5131
PO BOX 1132, CLIFFSIDE PARK, NJ 07010-5132
PO BOX 1133, CLIFFSIDE PARK, NJ 07010-5133
PO BOX 1134, CLIFFSIDE PARK, NJ 07010-5134
PO BOX 1135, CLIFFSIDE PARK, NJ 07010-5135
PO BOX 1136, CLIFFSIDE PARK, NJ 07010-5136
PO BOX 1137, CLIFFSIDE PARK, NJ 07010-5137
PO BOX 1138, CLIFFSIDE PARK, NJ 07010-5138
PO BOX 1139, CLIFFSIDE PARK, NJ 07010-5139
PO BOX 1140, CLIFFSIDE PARK, NJ 07010-5140
PO BOX 1141, CLIFFSIDE PARK, NJ 07010-5141
PO BOX 1142, CLIFFSIDE PARK, NJ 07010-5142
PO BOX 1143, CLIFFSIDE PARK, NJ 07010-5143
PO BOX 1144, CLIFFSIDE PARK, NJ 07010-5144
PO BOX 1145, CLIFFSIDE PARK, NJ 07010-5145
PO BOX 1146, CLIFFSIDE PARK, NJ 07010-5146
PO BOX 1147, CLIFFSIDE PARK, NJ 07010-5147
PO BOX 1148, CLIFFSIDE PARK, NJ 07010-5148
PO BOX 1149, CLIFFSIDE PARK, NJ 07010-5149
PO BOX 1150, CLIFFSIDE PARK, NJ 07010-5150
PO BOX 1151, CLIFFSIDE PARK, NJ 07010-5151
PO BOX 1152, CLIFFSIDE PARK, NJ 07010-5152
PO BOX 1153, CLIFFSIDE PARK, NJ 07010-5153
PO BOX 1154, CLIFFSIDE PARK, NJ 07010-5154
PO BOX 1155, CLIFFSIDE PARK, NJ 07010-5155
PO BOX 1156, CLIFFSIDE PARK, NJ 07010-5156
PO BOX 1157, CLIFFSIDE PARK, NJ 07010-5157
PO BOX 1158, CLIFFSIDE PARK, NJ 07010-5158
PO BOX 1159, CLIFFSIDE PARK, NJ 07010-5159
PO BOX 1160, CLIFFSIDE PARK, NJ 07010-5160
PO BOX 1161, CLIFFSIDE PARK, NJ 07010-5161
PO BOX 1162, CLIFFSIDE PARK, NJ 07010-5162
PO BOX 1163, CLIFFSIDE PARK, NJ 07010-5163
PO BOX 1164, CLIFFSIDE PARK, NJ 07010-5164
PO BOX 1165, CLIFFSIDE PARK, NJ 07010-5165
PO BOX 1166, CLIFFSIDE PARK, NJ 07010-5166
PO BOX 1167, CLIFFSIDE PARK, NJ 07010-5167
PO BOX 1168, CLIFFSIDE PARK, NJ 07010-5168
PO BOX 1169, CLIFFSIDE PARK, NJ 07010-5169
PO BOX 1170, CLIFFSIDE PARK, NJ 07010-5170
PO BOX 1171, CLIFFSIDE PARK, NJ 07010-5171
PO BOX 1172, CLIFFSIDE PARK, NJ 07010-5172
PO BOX 1173, CLIFFSIDE PARK, NJ 07010-5173
PO BOX 1174, CLIFFSIDE PARK, NJ 07010-5174
PO BOX 1175, CLIFFSIDE PARK, NJ 07010-5175
PO BOX 1176, CLIFFSIDE PARK, NJ 07010-5176
PO BOX 1177, CLIFFSIDE PARK, NJ 07010-5177
PO BOX 1178, CLIFFSIDE PARK, NJ 07010-5178
PO BOX 1179, CLIFFSIDE PARK, NJ 07010-5179
PO BOX 1180, CLIFFSIDE PARK, NJ 07010-5180
PO BOX 1181, CLIFFSIDE PARK, NJ 07010-5181
PO BOX 1182, CLIFFSIDE PARK, NJ 07010-5182
PO BOX 1183, CLIFFSIDE PARK, NJ 07010-5183
PO BOX 1184, CLIFFSIDE PARK, NJ 07010-5184
PO BOX 1185, CLIFFSIDE PARK, NJ 07010-5185
PO BOX 1186, CLIFFSIDE PARK, NJ 07010-5186
PO BOX 1187, CLIFFSIDE PARK, NJ 07010-5187
PO BOX 1188, CLIFFSIDE PARK, NJ 07010-5188
PO BOX 1189, CLIFFSIDE PARK, NJ 07010-5189
PO BOX 1190, CLIFFSIDE PARK, NJ 07010-5190
PO BOX 1191, CLIFFSIDE PARK, NJ 07010-5191
PO BOX 1192, CLIFFSIDE PARK, NJ 07010-5192
PO BOX 1193, CLIFFSIDE PARK, NJ 07010-5193
PO BOX 1194, CLIFFSIDE PARK, NJ 07010-5194
PO BOX 1195, CLIFFSIDE PARK, NJ 07010-5195
PO BOX 1196, CLIFFSIDE PARK, NJ 07010-5196
PO BOX 1197, CLIFFSIDE PARK, NJ 07010-5197
PO BOX 1198, CLIFFSIDE PARK, NJ 07010-5198
PO BOX 1199, CLIFFSIDE PARK, NJ 07010-5199
PO BOX 1200, CLIFFSIDE PARK, NJ 07010-5200
PO BOX 1201, CLIFFSIDE PARK, NJ 07010-5201
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