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 1, PHILLIPSBURG, NJ 08865-0001
PO BOX 2, PHILLIPSBURG, NJ 08865-0002
PO BOX 3, PHILLIPSBURG, NJ 08865-0003
PO BOX 4, PHILLIPSBURG, NJ 08865-0004
PO BOX 5, PHILLIPSBURG, NJ 08865-0005
PO BOX 6, PHILLIPSBURG, NJ 08865-0006
PO BOX 7, PHILLIPSBURG, NJ 08865-0007
PO BOX 8, PHILLIPSBURG, NJ 08865-0008
PO BOX 9, PHILLIPSBURG, NJ 08865-0009
PO BOX 10, PHILLIPSBURG, NJ 08865-0010
PO BOX 11, PHILLIPSBURG, NJ 08865-0011
PO BOX 12, PHILLIPSBURG, NJ 08865-0012
PO BOX 13, PHILLIPSBURG, NJ 08865-0013
PO BOX 14, PHILLIPSBURG, NJ 08865-0014
PO BOX 15, PHILLIPSBURG, NJ 08865-0015
PO BOX 16, PHILLIPSBURG, NJ 08865-0016
PO BOX 17, PHILLIPSBURG, NJ 08865-0017
PO BOX 18, PHILLIPSBURG, NJ 08865-0018
PO BOX 19, PHILLIPSBURG, NJ 08865-0019
PO BOX 20, PHILLIPSBURG, NJ 08865-0020
PO BOX 21, PHILLIPSBURG, NJ 08865-0021
PO BOX 22, PHILLIPSBURG, NJ 08865-0022
PO BOX 23, PHILLIPSBURG, NJ 08865-0023
PO BOX 24, PHILLIPSBURG, NJ 08865-0024
PO BOX 25, PHILLIPSBURG, NJ 08865-0025
PO BOX 26, PHILLIPSBURG, NJ 08865-0026
PO BOX 27, PHILLIPSBURG, NJ 08865-0027
PO BOX 28, PHILLIPSBURG, NJ 08865-0028
PO BOX 29, PHILLIPSBURG, NJ 08865-0029
PO BOX 30, PHILLIPSBURG, NJ 08865-0030
PO BOX 31, PHILLIPSBURG, NJ 08865-0031
PO BOX 32, PHILLIPSBURG, NJ 08865-0032
PO BOX 33, PHILLIPSBURG, NJ 08865-0033
PO BOX 34, PHILLIPSBURG, NJ 08865-0034
PO BOX 35, PHILLIPSBURG, NJ 08865-0035
PO BOX 36, PHILLIPSBURG, NJ 08865-0036
PO BOX 37, PHILLIPSBURG, NJ 08865-0037
PO BOX 38, PHILLIPSBURG, NJ 08865-0038
PO BOX 39, PHILLIPSBURG, NJ 08865-0039
PO BOX 40, PHILLIPSBURG, NJ 08865-0040
PO BOX 41, PHILLIPSBURG, NJ 08865-0041
PO BOX 42, PHILLIPSBURG, NJ 08865-0042
PO BOX 43, PHILLIPSBURG, NJ 08865-0043
PO BOX 44, PHILLIPSBURG, NJ 08865-0044
PO BOX 45, PHILLIPSBURG, NJ 08865-0045
PO BOX 46, PHILLIPSBURG, NJ 08865-0046
PO BOX 47, PHILLIPSBURG, NJ 08865-0047
PO BOX 48, PHILLIPSBURG, NJ 08865-0048
PO BOX 49, PHILLIPSBURG, NJ 08865-0049
PO BOX 50, PHILLIPSBURG, NJ 08865-0050
PO BOX 51, PHILLIPSBURG, NJ 08865-0051
PO BOX 52, PHILLIPSBURG, NJ 08865-0052
PO BOX 53, PHILLIPSBURG, NJ 08865-0053
PO BOX 54, PHILLIPSBURG, NJ 08865-0054
PO BOX 55, PHILLIPSBURG, NJ 08865-0055
PO BOX 56, PHILLIPSBURG, NJ 08865-0056
PO BOX 57, PHILLIPSBURG, NJ 08865-0057
PO BOX 58, PHILLIPSBURG, NJ 08865-0058
PO BOX 59, PHILLIPSBURG, NJ 08865-0059
PO BOX 60, PHILLIPSBURG, NJ 08865-0060
PO BOX 61, PHILLIPSBURG, NJ 08865-0061
PO BOX 62, PHILLIPSBURG, NJ 08865-0062
PO BOX 63, PHILLIPSBURG, NJ 08865-0063
PO BOX 64, PHILLIPSBURG, NJ 08865-0064
PO BOX 65, PHILLIPSBURG, NJ 08865-0065
PO BOX 66, PHILLIPSBURG, NJ 08865-0066
PO BOX 67, PHILLIPSBURG, NJ 08865-0067
PO BOX 68, PHILLIPSBURG, NJ 08865-0068
PO BOX 69, PHILLIPSBURG, NJ 08865-0069
PO BOX 70, PHILLIPSBURG, NJ 08865-0070
PO BOX 71, PHILLIPSBURG, NJ 08865-0071
PO BOX 72, PHILLIPSBURG, NJ 08865-0072
PO BOX 73, PHILLIPSBURG, NJ 08865-0073
PO BOX 74, PHILLIPSBURG, NJ 08865-0074
PO BOX 75, PHILLIPSBURG, NJ 08865-0075
PO BOX 76, PHILLIPSBURG, NJ 08865-0076
PO BOX 77, PHILLIPSBURG, NJ 08865-0077
PO BOX 78, PHILLIPSBURG, NJ 08865-0078
PO BOX 79, PHILLIPSBURG, NJ 08865-0079
PO BOX 80, PHILLIPSBURG, NJ 08865-0080
PO BOX 81, PHILLIPSBURG, NJ 08865-0081
PO BOX 82, PHILLIPSBURG, NJ 08865-0082
PO BOX 83, PHILLIPSBURG, NJ 08865-0083
PO BOX 84, PHILLIPSBURG, NJ 08865-0084
PO BOX 85, PHILLIPSBURG, NJ 08865-0085
PO BOX 86, PHILLIPSBURG, NJ 08865-0086
PO BOX 87, PHILLIPSBURG, NJ 08865-0087
PO BOX 88, PHILLIPSBURG, NJ 08865-0088
PO BOX 89, PHILLIPSBURG, NJ 08865-0089
PO BOX 90, PHILLIPSBURG, NJ 08865-0090
PO BOX 91, PHILLIPSBURG, NJ 08865-0091
PO BOX 92, PHILLIPSBURG, NJ 08865-0092
PO BOX 93, PHILLIPSBURG, NJ 08865-0093
PO BOX 94, PHILLIPSBURG, NJ 08865-0094
PO BOX 95, PHILLIPSBURG, NJ 08865-0095
PO BOX 96, PHILLIPSBURG, NJ 08865-0096
PO BOX 97, PHILLIPSBURG, NJ 08865-0097
PO BOX 98, PHILLIPSBURG, NJ 08865-0098
PO BOX 99, PHILLIPSBURG, NJ 08865-0099
PO BOX 100, PHILLIPSBURG, NJ 08865-0100
PO BOX 101, PHILLIPSBURG, NJ 08865-0101
PO BOX 102, PHILLIPSBURG, NJ 08865-0102
PO BOX 103, PHILLIPSBURG, NJ 08865-0103
PO BOX 104, PHILLIPSBURG, NJ 08865-0104
PO BOX 105, PHILLIPSBURG, NJ 08865-0105
PO BOX 106, PHILLIPSBURG, NJ 08865-0106
PO BOX 107, PHILLIPSBURG, NJ 08865-0107
PO BOX 108, PHILLIPSBURG, NJ 08865-0108
PO BOX 109, PHILLIPSBURG, NJ 08865-0109
PO BOX 110, PHILLIPSBURG, NJ 08865-0110
PO BOX 111, PHILLIPSBURG, NJ 08865-0111
PO BOX 112, PHILLIPSBURG, NJ 08865-0112
PO BOX 113, PHILLIPSBURG, NJ 08865-0113
PO BOX 114, PHILLIPSBURG, NJ 08865-0114
PO BOX 115, PHILLIPSBURG, NJ 08865-0115
PO BOX 116, PHILLIPSBURG, NJ 08865-0116
PO BOX 117, PHILLIPSBURG, NJ 08865-0117
PO BOX 118, PHILLIPSBURG, NJ 08865-0118
PO BOX 119, PHILLIPSBURG, NJ 08865-0119
PO BOX 120, PHILLIPSBURG, NJ 08865-0120
PO BOX 121, PHILLIPSBURG, NJ 08865-0121
PO BOX 122, PHILLIPSBURG, NJ 08865-0122
PO BOX 123, PHILLIPSBURG, NJ 08865-0123
PO BOX 124, PHILLIPSBURG, NJ 08865-0124
PO BOX 125, PHILLIPSBURG, NJ 08865-0125
PO BOX 126, PHILLIPSBURG, NJ 08865-0126
PO BOX 127, PHILLIPSBURG, NJ 08865-0127
PO BOX 128, PHILLIPSBURG, NJ 08865-0128
PO BOX 129, PHILLIPSBURG, NJ 08865-0129
PO BOX 130, PHILLIPSBURG, NJ 08865-0130
PO BOX 131, PHILLIPSBURG, NJ 08865-0131
PO BOX 132, PHILLIPSBURG, NJ 08865-0132
PO BOX 133, PHILLIPSBURG, NJ 08865-0133
PO BOX 134, PHILLIPSBURG, NJ 08865-0134
PO BOX 135, PHILLIPSBURG, NJ 08865-0135
PO BOX 136, PHILLIPSBURG, NJ 08865-0136
PO BOX 137, PHILLIPSBURG, NJ 08865-0137
PO BOX 138, PHILLIPSBURG, NJ 08865-0138
PO BOX 139, PHILLIPSBURG, NJ 08865-0139
PO BOX 140, PHILLIPSBURG, NJ 08865-0140
PO BOX 141, PHILLIPSBURG, NJ 08865-0141
PO BOX 142, PHILLIPSBURG, NJ 08865-0142
PO BOX 143, PHILLIPSBURG, NJ 08865-0143
PO BOX 144, PHILLIPSBURG, NJ 08865-0144
PO BOX 145, PHILLIPSBURG, NJ 08865-0145
PO BOX 146, PHILLIPSBURG, NJ 08865-0146
PO BOX 147, PHILLIPSBURG, NJ 08865-0147
PO BOX 148, PHILLIPSBURG, NJ 08865-0148
PO BOX 149, PHILLIPSBURG, NJ 08865-0149
PO BOX 150, PHILLIPSBURG, NJ 08865-0150
PO BOX 151, PHILLIPSBURG, NJ 08865-0151
PO BOX 152, PHILLIPSBURG, NJ 08865-0152
PO BOX 153, PHILLIPSBURG, NJ 08865-0153
PO BOX 154, PHILLIPSBURG, NJ 08865-0154
PO BOX 155, PHILLIPSBURG, NJ 08865-0155
PO BOX 156, PHILLIPSBURG, NJ 08865-0156
PO BOX 157, PHILLIPSBURG, NJ 08865-0157
PO BOX 158, PHILLIPSBURG, NJ 08865-0158
PO BOX 159, PHILLIPSBURG, NJ 08865-0159
PO BOX 160, PHILLIPSBURG, NJ 08865-0160
PO BOX 161, PHILLIPSBURG, NJ 08865-0161
PO BOX 162, PHILLIPSBURG, NJ 08865-0162
PO BOX 163, PHILLIPSBURG, NJ 08865-0163
PO BOX 164, PHILLIPSBURG, NJ 08865-0164
PO BOX 165, PHILLIPSBURG, NJ 08865-0165
PO BOX 166, PHILLIPSBURG, NJ 08865-0166
PO BOX 167, PHILLIPSBURG, NJ 08865-0167
PO BOX 168, PHILLIPSBURG, NJ 08865-0168
PO BOX 169, PHILLIPSBURG, NJ 08865-0169
PO BOX 170, PHILLIPSBURG, NJ 08865-0170
PO BOX 171, PHILLIPSBURG, NJ 08865-0171
PO BOX 172, PHILLIPSBURG, NJ 08865-0172
PO BOX 173, PHILLIPSBURG, NJ 08865-0173
PO BOX 174, PHILLIPSBURG, NJ 08865-0174
PO BOX 175, PHILLIPSBURG, NJ 08865-0175
PO BOX 176, PHILLIPSBURG, NJ 08865-0176
PO BOX 177, PHILLIPSBURG, NJ 08865-0177
PO BOX 178, PHILLIPSBURG, NJ 08865-0178
PO BOX 179, PHILLIPSBURG, NJ 08865-0179
PO BOX 180, PHILLIPSBURG, NJ 08865-0180
PO BOX 181, PHILLIPSBURG, NJ 08865-0181
PO BOX 182, PHILLIPSBURG, NJ 08865-0182
PO BOX 183, PHILLIPSBURG, NJ 08865-0183
PO BOX 184, PHILLIPSBURG, NJ 08865-0184
PO BOX 185, PHILLIPSBURG, NJ 08865-0185
PO BOX 186, PHILLIPSBURG, NJ 08865-0186
PO BOX 187, PHILLIPSBURG, NJ 08865-0187
PO BOX 188, PHILLIPSBURG, NJ 08865-0188
PO BOX 189, PHILLIPSBURG, NJ 08865-0189
PO BOX 190, PHILLIPSBURG, NJ 08865-0190
PO BOX 191, PHILLIPSBURG, NJ 08865-0191
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