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, MOUNTAIN LAKES, NJ 07046-0001
PO BOX 2, MOUNTAIN LAKES, NJ 07046-0002
PO BOX 3, MOUNTAIN LAKES, NJ 07046-0003
PO BOX 4, MOUNTAIN LAKES, NJ 07046-0004
PO BOX 5, MOUNTAIN LAKES, NJ 07046-0005
PO BOX 6, MOUNTAIN LAKES, NJ 07046-0006
PO BOX 7, MOUNTAIN LAKES, NJ 07046-0007
PO BOX 8, MOUNTAIN LAKES, NJ 07046-0008
PO BOX 9, MOUNTAIN LAKES, NJ 07046-0009
PO BOX 10, MOUNTAIN LAKES, NJ 07046-0010
PO BOX 11, MOUNTAIN LAKES, NJ 07046-0011
PO BOX 12, MOUNTAIN LAKES, NJ 07046-0012
PO BOX 13, MOUNTAIN LAKES, NJ 07046-0013
PO BOX 14, MOUNTAIN LAKES, NJ 07046-0014
PO BOX 15, MOUNTAIN LAKES, NJ 07046-0015
PO BOX 16, MOUNTAIN LAKES, NJ 07046-0016
PO BOX 17, MOUNTAIN LAKES, NJ 07046-0017
PO BOX 18, MOUNTAIN LAKES, NJ 07046-0018
PO BOX 19, MOUNTAIN LAKES, NJ 07046-0019
PO BOX 20, MOUNTAIN LAKES, NJ 07046-0020
PO BOX 21, MOUNTAIN LAKES, NJ 07046-0021
PO BOX 22, MOUNTAIN LAKES, NJ 07046-0022
PO BOX 23, MOUNTAIN LAKES, NJ 07046-0023
PO BOX 24, MOUNTAIN LAKES, NJ 07046-0024
PO BOX 25, MOUNTAIN LAKES, NJ 07046-0025
PO BOX 26, MOUNTAIN LAKES, NJ 07046-0026
PO BOX 27, MOUNTAIN LAKES, NJ 07046-0027
PO BOX 28, MOUNTAIN LAKES, NJ 07046-0028
PO BOX 29, MOUNTAIN LAKES, NJ 07046-0029
PO BOX 30, MOUNTAIN LAKES, NJ 07046-0030
PO BOX 31, MOUNTAIN LAKES, NJ 07046-0031
PO BOX 32, MOUNTAIN LAKES, NJ 07046-0032
PO BOX 33, MOUNTAIN LAKES, NJ 07046-0033
PO BOX 34, MOUNTAIN LAKES, NJ 07046-0034
PO BOX 35, MOUNTAIN LAKES, NJ 07046-0035
PO BOX 36, MOUNTAIN LAKES, NJ 07046-0036
PO BOX 37, MOUNTAIN LAKES, NJ 07046-0037
PO BOX 38, MOUNTAIN LAKES, NJ 07046-0038
PO BOX 39, MOUNTAIN LAKES, NJ 07046-0039
PO BOX 40, MOUNTAIN LAKES, NJ 07046-0040
PO BOX 41, MOUNTAIN LAKES, NJ 07046-0041
PO BOX 42, MOUNTAIN LAKES, NJ 07046-0042
PO BOX 43, MOUNTAIN LAKES, NJ 07046-0043
PO BOX 44, MOUNTAIN LAKES, NJ 07046-0044
PO BOX 45, MOUNTAIN LAKES, NJ 07046-0045
PO BOX 46, MOUNTAIN LAKES, NJ 07046-0046
PO BOX 47, MOUNTAIN LAKES, NJ 07046-0047
PO BOX 48, MOUNTAIN LAKES, NJ 07046-0048
PO BOX 49, MOUNTAIN LAKES, NJ 07046-0049
PO BOX 50, MOUNTAIN LAKES, NJ 07046-0050
PO BOX 51, MOUNTAIN LAKES, NJ 07046-0051
PO BOX 52, MOUNTAIN LAKES, NJ 07046-0052
PO BOX 53, MOUNTAIN LAKES, NJ 07046-0053
PO BOX 54, MOUNTAIN LAKES, NJ 07046-0054
PO BOX 55, MOUNTAIN LAKES, NJ 07046-0055
PO BOX 56, MOUNTAIN LAKES, NJ 07046-0056
PO BOX 57, MOUNTAIN LAKES, NJ 07046-0057
PO BOX 58, MOUNTAIN LAKES, NJ 07046-0058
PO BOX 59, MOUNTAIN LAKES, NJ 07046-0059
PO BOX 60, MOUNTAIN LAKES, NJ 07046-0060
PO BOX 61, MOUNTAIN LAKES, NJ 07046-0061
PO BOX 62, MOUNTAIN LAKES, NJ 07046-0062
PO BOX 63, MOUNTAIN LAKES, NJ 07046-0063
PO BOX 64, MOUNTAIN LAKES, NJ 07046-0064
PO BOX 65, MOUNTAIN LAKES, NJ 07046-0065
PO BOX 66, MOUNTAIN LAKES, NJ 07046-0066
PO BOX 67, MOUNTAIN LAKES, NJ 07046-0067
PO BOX 68, MOUNTAIN LAKES, NJ 07046-0068
PO BOX 69, MOUNTAIN LAKES, NJ 07046-0069
PO BOX 70, MOUNTAIN LAKES, NJ 07046-0070
PO BOX 71, MOUNTAIN LAKES, NJ 07046-0071
PO BOX 72, MOUNTAIN LAKES, NJ 07046-0072
PO BOX 73, MOUNTAIN LAKES, NJ 07046-0073
PO BOX 74, MOUNTAIN LAKES, NJ 07046-0074
PO BOX 75, MOUNTAIN LAKES, NJ 07046-0075
PO BOX 76, MOUNTAIN LAKES, NJ 07046-0076
PO BOX 77, MOUNTAIN LAKES, NJ 07046-0077
PO BOX 78, MOUNTAIN LAKES, NJ 07046-0078
PO BOX 79, MOUNTAIN LAKES, NJ 07046-0079
PO BOX 80, MOUNTAIN LAKES, NJ 07046-0080
PO BOX 81, MOUNTAIN LAKES, NJ 07046-0081
PO BOX 82, MOUNTAIN LAKES, NJ 07046-0082
PO BOX 83, MOUNTAIN LAKES, NJ 07046-0083
PO BOX 84, MOUNTAIN LAKES, NJ 07046-0084
PO BOX 85, MOUNTAIN LAKES, NJ 07046-0085
PO BOX 86, MOUNTAIN LAKES, NJ 07046-0086
PO BOX 87, MOUNTAIN LAKES, NJ 07046-0087
PO BOX 88, MOUNTAIN LAKES, NJ 07046-0088
PO BOX 89, MOUNTAIN LAKES, NJ 07046-0089
PO BOX 90, MOUNTAIN LAKES, NJ 07046-0090
PO BOX 91, MOUNTAIN LAKES, NJ 07046-0091
PO BOX 92, MOUNTAIN LAKES, NJ 07046-0092
PO BOX 93, MOUNTAIN LAKES, NJ 07046-0093
PO BOX 94, MOUNTAIN LAKES, NJ 07046-0094
PO BOX 95, MOUNTAIN LAKES, NJ 07046-0095
PO BOX 96, MOUNTAIN LAKES, NJ 07046-0096
PO BOX 97, MOUNTAIN LAKES, NJ 07046-0097
PO BOX 98, MOUNTAIN LAKES, NJ 07046-0098
PO BOX 99, MOUNTAIN LAKES, NJ 07046-0099
PO BOX 100, MOUNTAIN LAKES, NJ 07046-0100
PO BOX 101, MOUNTAIN LAKES, NJ 07046-0101
PO BOX 102, MOUNTAIN LAKES, NJ 07046-0102
PO BOX 103, MOUNTAIN LAKES, NJ 07046-0103
PO BOX 104, MOUNTAIN LAKES, NJ 07046-0104
PO BOX 105, MOUNTAIN LAKES, NJ 07046-0105
PO BOX 106, MOUNTAIN LAKES, NJ 07046-0106
PO BOX 107, MOUNTAIN LAKES, NJ 07046-0107
PO BOX 108, MOUNTAIN LAKES, NJ 07046-0108
PO BOX 109, MOUNTAIN LAKES, NJ 07046-0109
PO BOX 110, MOUNTAIN LAKES, NJ 07046-0110
PO BOX 111, MOUNTAIN LAKES, NJ 07046-0111
PO BOX 112, MOUNTAIN LAKES, NJ 07046-0112
PO BOX 113, MOUNTAIN LAKES, NJ 07046-0113
PO BOX 114, MOUNTAIN LAKES, NJ 07046-0114
PO BOX 115, MOUNTAIN LAKES, NJ 07046-0115
PO BOX 116, MOUNTAIN LAKES, NJ 07046-0116
PO BOX 117, MOUNTAIN LAKES, NJ 07046-0117
PO BOX 118, MOUNTAIN LAKES, NJ 07046-0118
PO BOX 119, MOUNTAIN LAKES, NJ 07046-0119
PO BOX 120, MOUNTAIN LAKES, NJ 07046-0120
PO BOX 121, MOUNTAIN LAKES, NJ 07046-0121
PO BOX 122, MOUNTAIN LAKES, NJ 07046-0122
PO BOX 123, MOUNTAIN LAKES, NJ 07046-0123
PO BOX 124, MOUNTAIN LAKES, NJ 07046-0124
PO BOX 125, MOUNTAIN LAKES, NJ 07046-0125
PO BOX 126, MOUNTAIN LAKES, NJ 07046-0126
PO BOX 127, MOUNTAIN LAKES, NJ 07046-0127
PO BOX 128, MOUNTAIN LAKES, NJ 07046-0128
PO BOX 129, MOUNTAIN LAKES, NJ 07046-0129
PO BOX 130, MOUNTAIN LAKES, NJ 07046-0130
PO BOX 131, MOUNTAIN LAKES, NJ 07046-0131
PO BOX 132, MOUNTAIN LAKES, NJ 07046-0132
PO BOX 133, MOUNTAIN LAKES, NJ 07046-0133
PO BOX 134, MOUNTAIN LAKES, NJ 07046-0134
PO BOX 135, MOUNTAIN LAKES, NJ 07046-0135
PO BOX 136, MOUNTAIN LAKES, NJ 07046-0136
PO BOX 137, MOUNTAIN LAKES, NJ 07046-0137
PO BOX 138, MOUNTAIN LAKES, NJ 07046-0138
PO BOX 139, MOUNTAIN LAKES, NJ 07046-0139
PO BOX 140, MOUNTAIN LAKES, NJ 07046-0140
PO BOX 141, MOUNTAIN LAKES, NJ 07046-0141
PO BOX 142, MOUNTAIN LAKES, NJ 07046-0142
PO BOX 143, MOUNTAIN LAKES, NJ 07046-0143
PO BOX 144, MOUNTAIN LAKES, NJ 07046-0144
PO BOX 145, MOUNTAIN LAKES, NJ 07046-0145
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