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 10001, NEW BRUNSWICK, NJ 08906-0001
PO BOX 10002, NEW BRUNSWICK, NJ 08906-0002
PO BOX 10003, NEW BRUNSWICK, NJ 08906-0003
PO BOX 10004, NEW BRUNSWICK, NJ 08906-0004
PO BOX 10005, NEW BRUNSWICK, NJ 08906-0005
PO BOX 10006, NEW BRUNSWICK, NJ 08906-0006
PO BOX 10007, NEW BRUNSWICK, NJ 08906-0007
PO BOX 10008, NEW BRUNSWICK, NJ 08906-0008
PO BOX 10009, NEW BRUNSWICK, NJ 08906-0009
PO BOX 10010, NEW BRUNSWICK, NJ 08906-0010
PO BOX 10011, NEW BRUNSWICK, NJ 08906-0011
PO BOX 10012, NEW BRUNSWICK, NJ 08906-0012
PO BOX 10013, NEW BRUNSWICK, NJ 08906-0013
PO BOX 10014, NEW BRUNSWICK, NJ 08906-0014
PO BOX 10015, NEW BRUNSWICK, NJ 08906-0015
PO BOX 10016, NEW BRUNSWICK, NJ 08906-0016
PO BOX 10017, NEW BRUNSWICK, NJ 08906-0017
PO BOX 10018, NEW BRUNSWICK, NJ 08906-0018
PO BOX 10019, NEW BRUNSWICK, NJ 08906-0019
PO BOX 10020, NEW BRUNSWICK, NJ 08906-0020
PO BOX 10021, NEW BRUNSWICK, NJ 08906-0021
PO BOX 10022, NEW BRUNSWICK, NJ 08906-0022
PO BOX 10023, NEW BRUNSWICK, NJ 08906-0023
PO BOX 10024, NEW BRUNSWICK, NJ 08906-0024
PO BOX 10025, NEW BRUNSWICK, NJ 08906-0025
PO BOX 10026, NEW BRUNSWICK, NJ 08906-0026
PO BOX 10027, NEW BRUNSWICK, NJ 08906-0027
PO BOX 10028, NEW BRUNSWICK, NJ 08906-0028
PO BOX 10029, NEW BRUNSWICK, NJ 08906-0029
PO BOX 10030, NEW BRUNSWICK, NJ 08906-0030
PO BOX 10031, NEW BRUNSWICK, NJ 08906-0031
PO BOX 10032, NEW BRUNSWICK, NJ 08906-0032
PO BOX 10033, NEW BRUNSWICK, NJ 08906-0033
PO BOX 10034, NEW BRUNSWICK, NJ 08906-0034
PO BOX 10035, NEW BRUNSWICK, NJ 08906-0035
PO BOX 10036, NEW BRUNSWICK, NJ 08906-0036
PO BOX 10037, NEW BRUNSWICK, NJ 08906-0037
PO BOX 10038, NEW BRUNSWICK, NJ 08906-0038
PO BOX 10039, NEW BRUNSWICK, NJ 08906-0039
PO BOX 10040, NEW BRUNSWICK, NJ 08906-0040
PO BOX 10041, NEW BRUNSWICK, NJ 08906-0041
PO BOX 10042, NEW BRUNSWICK, NJ 08906-0042
PO BOX 10043, NEW BRUNSWICK, NJ 08906-0043
PO BOX 10044, NEW BRUNSWICK, NJ 08906-0044
PO BOX 10045, NEW BRUNSWICK, NJ 08906-0045
PO BOX 10046, NEW BRUNSWICK, NJ 08906-0046
PO BOX 10047, NEW BRUNSWICK, NJ 08906-0047
PO BOX 10048, NEW BRUNSWICK, NJ 08906-0048
PO BOX 10049, NEW BRUNSWICK, NJ 08906-0049
PO BOX 10050, NEW BRUNSWICK, NJ 08906-0050
PO BOX 10051, NEW BRUNSWICK, NJ 08906-0051
PO BOX 10052, NEW BRUNSWICK, NJ 08906-0052
PO BOX 10053, NEW BRUNSWICK, NJ 08906-0053
PO BOX 10054, NEW BRUNSWICK, NJ 08906-0054
PO BOX 10055, NEW BRUNSWICK, NJ 08906-0055
PO BOX 10056, NEW BRUNSWICK, NJ 08906-0056
PO BOX 10057, NEW BRUNSWICK, NJ 08906-0057
PO BOX 10058, NEW BRUNSWICK, NJ 08906-0058
PO BOX 10059, NEW BRUNSWICK, NJ 08906-0059
PO BOX 10060, NEW BRUNSWICK, NJ 08906-0060
PO BOX 10061, NEW BRUNSWICK, NJ 08906-0061
PO BOX 10062, NEW BRUNSWICK, NJ 08906-0062
PO BOX 10063, NEW BRUNSWICK, NJ 08906-0063
PO BOX 10064, NEW BRUNSWICK, NJ 08906-0064
PO BOX 10065, NEW BRUNSWICK, NJ 08906-0065
PO BOX 10066, NEW BRUNSWICK, NJ 08906-0066
PO BOX 10067, NEW BRUNSWICK, NJ 08906-0067
PO BOX 10068, NEW BRUNSWICK, NJ 08906-0068
PO BOX 10069, NEW BRUNSWICK, NJ 08906-0069
PO BOX 10070, NEW BRUNSWICK, NJ 08906-0070
PO BOX 10071, NEW BRUNSWICK, NJ 08906-0071
PO BOX 10072, NEW BRUNSWICK, NJ 08906-0072
PO BOX 10073, NEW BRUNSWICK, NJ 08906-0073
PO BOX 10074, NEW BRUNSWICK, NJ 08906-0074
PO BOX 10075, NEW BRUNSWICK, NJ 08906-0075
PO BOX 10076, NEW BRUNSWICK, NJ 08906-0076
PO BOX 10077, NEW BRUNSWICK, NJ 08906-0077
PO BOX 10078, NEW BRUNSWICK, NJ 08906-0078
PO BOX 10079, NEW BRUNSWICK, NJ 08906-0079
PO BOX 10080, NEW BRUNSWICK, NJ 08906-0080
PO BOX 10081, NEW BRUNSWICK, NJ 08906-0081
PO BOX 10082, NEW BRUNSWICK, NJ 08906-0082
PO BOX 10083, NEW BRUNSWICK, NJ 08906-0083
PO BOX 10084, NEW BRUNSWICK, NJ 08906-0084
PO BOX 10085, NEW BRUNSWICK, NJ 08906-0085
PO BOX 10086, NEW BRUNSWICK, NJ 08906-0086
PO BOX 10087, NEW BRUNSWICK, NJ 08906-0087
PO BOX 10088, NEW BRUNSWICK, NJ 08906-0088
PO BOX 10089, NEW BRUNSWICK, NJ 08906-0089
PO BOX 10090, NEW BRUNSWICK, NJ 08906-0090
PO BOX 10091, NEW BRUNSWICK, NJ 08906-0091
PO BOX 10092, NEW BRUNSWICK, NJ 08906-0092
PO BOX 10093, NEW BRUNSWICK, NJ 08906-0093
PO BOX 10094, NEW BRUNSWICK, NJ 08906-0094
PO BOX 10095, NEW BRUNSWICK, NJ 08906-0095
PO BOX 10096, NEW BRUNSWICK, NJ 08906-0096
PO BOX 10097, NEW BRUNSWICK, NJ 08906-0097
PO BOX 10098, NEW BRUNSWICK, NJ 08906-0098
PO BOX 10099, NEW BRUNSWICK, NJ 08906-0099
PO BOX 10100, NEW BRUNSWICK, NJ 08906-0100
PO BOX 10101, NEW BRUNSWICK, NJ 08906-0101
PO BOX 10102, NEW BRUNSWICK, NJ 08906-0102
PO BOX 10103, NEW BRUNSWICK, NJ 08906-0103
PO BOX 10104, NEW BRUNSWICK, NJ 08906-0104
PO BOX 10105, NEW BRUNSWICK, NJ 08906-0105
PO BOX 10106, NEW BRUNSWICK, NJ 08906-0106
PO BOX 10107, NEW BRUNSWICK, NJ 08906-0107
PO BOX 10108, NEW BRUNSWICK, NJ 08906-0108
PO BOX 10109, NEW BRUNSWICK, NJ 08906-0109
PO BOX 10110, NEW BRUNSWICK, NJ 08906-0110
PO BOX 10111, NEW BRUNSWICK, NJ 08906-0111
PO BOX 10112, NEW BRUNSWICK, NJ 08906-0112
PO BOX 10113, NEW BRUNSWICK, NJ 08906-0113
PO BOX 10114, NEW BRUNSWICK, NJ 08906-0114
PO BOX 10115, NEW BRUNSWICK, NJ 08906-0115
PO BOX 10116, NEW BRUNSWICK, NJ 08906-0116
PO BOX 10117, NEW BRUNSWICK, NJ 08906-0117
PO BOX 10118, NEW BRUNSWICK, NJ 08906-0118
PO BOX 10119, NEW BRUNSWICK, NJ 08906-0119
PO BOX 10120, NEW BRUNSWICK, NJ 08906-0120
PO BOX 10121, NEW BRUNSWICK, NJ 08906-0121
PO BOX 10122, NEW BRUNSWICK, NJ 08906-0122
PO BOX 10123, NEW BRUNSWICK, NJ 08906-0123
PO BOX 10124, NEW BRUNSWICK, NJ 08906-0124
PO BOX 10125, NEW BRUNSWICK, NJ 08906-0125
PO BOX 10126, NEW BRUNSWICK, NJ 08906-0126
PO BOX 10127, NEW BRUNSWICK, NJ 08906-0127
PO BOX 10128, NEW BRUNSWICK, NJ 08906-0128
PO BOX 10129, NEW BRUNSWICK, NJ 08906-0129
PO BOX 10130, NEW BRUNSWICK, NJ 08906-0130
PO BOX 10131, NEW BRUNSWICK, NJ 08906-0131
PO BOX 10132, NEW BRUNSWICK, NJ 08906-0132
PO BOX 10133, NEW BRUNSWICK, NJ 08906-0133
PO BOX 10134, NEW BRUNSWICK, NJ 08906-0134
PO BOX 10135, NEW BRUNSWICK, NJ 08906-0135
PO BOX 10136, NEW BRUNSWICK, NJ 08906-0136
PO BOX 10137, NEW BRUNSWICK, NJ 08906-0137
PO BOX 10138, NEW BRUNSWICK, NJ 08906-0138
PO BOX 10139, NEW BRUNSWICK, NJ 08906-0139
PO BOX 10140, NEW BRUNSWICK, NJ 08906-0140
PO BOX 10141, NEW BRUNSWICK, NJ 08906-0141
PO BOX 10142, NEW BRUNSWICK, NJ 08906-0142
PO BOX 10143, NEW BRUNSWICK, NJ 08906-0143
PO BOX 10144, NEW BRUNSWICK, NJ 08906-0144
PO BOX 10145, NEW BRUNSWICK, NJ 08906-0145
PO BOX 10146, NEW BRUNSWICK, NJ 08906-0146
PO BOX 10147, NEW BRUNSWICK, NJ 08906-0147
PO BOX 10148, NEW BRUNSWICK, NJ 08906-0148
PO BOX 10149, NEW BRUNSWICK, NJ 08906-0149
PO BOX 10150, NEW BRUNSWICK, NJ 08906-0150
PO BOX 10151, NEW BRUNSWICK, NJ 08906-0151
PO BOX 10152, NEW BRUNSWICK, NJ 08906-0152
PO BOX 10153, NEW BRUNSWICK, NJ 08906-0153
PO BOX 10154, NEW BRUNSWICK, NJ 08906-0154
PO BOX 10155, NEW BRUNSWICK, NJ 08906-0155
PO BOX 10156, NEW BRUNSWICK, NJ 08906-0156
PO BOX 10157, NEW BRUNSWICK, NJ 08906-0157
PO BOX 10158, NEW BRUNSWICK, NJ 08906-0158
PO BOX 10159, NEW BRUNSWICK, NJ 08906-0159
PO BOX 10160, NEW BRUNSWICK, NJ 08906-0160
PO BOX 10161, NEW BRUNSWICK, NJ 08906-0161
PO BOX 10162, NEW BRUNSWICK, NJ 08906-0162
PO BOX 10163, NEW BRUNSWICK, NJ 08906-0163
PO BOX 10164, NEW BRUNSWICK, NJ 08906-0164
PO BOX 10165, NEW BRUNSWICK, NJ 08906-0165
PO BOX 10166, NEW BRUNSWICK, NJ 08906-0166
PO BOX 10167, NEW BRUNSWICK, NJ 08906-0167
PO BOX 10168, NEW BRUNSWICK, NJ 08906-0168
PO BOX 10169, NEW BRUNSWICK, NJ 08906-0169
PO BOX 10170, NEW BRUNSWICK, NJ 08906-0170
PO BOX 10171, NEW BRUNSWICK, NJ 08906-0171
PO BOX 10172, NEW BRUNSWICK, NJ 08906-0172
PO BOX 10173, NEW BRUNSWICK, NJ 08906-0173
PO BOX 10174, NEW BRUNSWICK, NJ 08906-0174
PO BOX 10175, NEW BRUNSWICK, NJ 08906-0175
PO BOX 10176, NEW BRUNSWICK, NJ 08906-0176
PO BOX 10177, NEW BRUNSWICK, NJ 08906-0177
PO BOX 10178, NEW BRUNSWICK, NJ 08906-0178
PO BOX 10179, NEW BRUNSWICK, NJ 08906-0179
PO BOX 10180, NEW BRUNSWICK, NJ 08906-0180
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