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 890003, CHARLOTTE, NC 28289-0003
PO BOX 890004, CHARLOTTE, NC 28289-0004
PO BOX 890005, CHARLOTTE, NC 28289-0005
PO BOX 890006, CHARLOTTE, NC 28289-0006
PO BOX 890007, CHARLOTTE, NC 28289-0007
PO BOX 890008, CHARLOTTE, NC 28289-0008
PO BOX 890009, CHARLOTTE, NC 28289-0009
PO BOX 890010, CHARLOTTE, NC 28289-0010
PO BOX 890011, CHARLOTTE, NC 28289-0011
PO BOX 890012, CHARLOTTE, NC 28289-0012
PO BOX 890013, CHARLOTTE, NC 28289-0013
PO BOX 890014, CHARLOTTE, NC 28289-0014
PO BOX 890015, CHARLOTTE, NC 28289-0015
PO BOX 890016, CHARLOTTE, NC 28289-0016
PO BOX 890017, CHARLOTTE, NC 28289-0017
PO BOX 890018, CHARLOTTE, NC 28289-0018
PO BOX 890019, CHARLOTTE, NC 28289-0019
PO BOX 890020, CHARLOTTE, NC 28289-0020
PO BOX 890021, CHARLOTTE, NC 28289-0021
PO BOX 890022, CHARLOTTE, NC 28289-0022
PO BOX 890023, CHARLOTTE, NC 28289-0023
PO BOX 890024, CHARLOTTE, NC 28289-0024
PO BOX 890025, CHARLOTTE, NC 28289-0025
PO BOX 890026, CHARLOTTE, NC 28289-0026
PO BOX 890027, CHARLOTTE, NC 28289-0027
PO BOX 890028, CHARLOTTE, NC 28289-0028
PO BOX 890029, CHARLOTTE, NC 28289-0029
PO BOX 890030, CHARLOTTE, NC 28289-0030
PO BOX 890031, CHARLOTTE, NC 28289-0031
PO BOX 890032, CHARLOTTE, NC 28289-0032
PO BOX 890033, CHARLOTTE, NC 28289-0033
PO BOX 890034, CHARLOTTE, NC 28289-0034
PO BOX 890035, CHARLOTTE, NC 28289-0035
PO BOX 890036, CHARLOTTE, NC 28289-0036
PO BOX 890037, CHARLOTTE, NC 28289-0037
PO BOX 890038, CHARLOTTE, NC 28289-0038
PO BOX 890039, CHARLOTTE, NC 28289-0039
PO BOX 890040, CHARLOTTE, NC 28289-0040
PO BOX 890041, CHARLOTTE, NC 28289-0041
PO BOX 890042, CHARLOTTE, NC 28289-0042
PO BOX 890043, CHARLOTTE, NC 28289-0043
PO BOX 890044, CHARLOTTE, NC 28289-0044
PO BOX 890045, CHARLOTTE, NC 28289-0045
PO BOX 890046, CHARLOTTE, NC 28289-0046
PO BOX 890047, CHARLOTTE, NC 28289-0047
PO BOX 890048, CHARLOTTE, NC 28289-0048
PO BOX 890049, CHARLOTTE, NC 28289-0049
PO BOX 890050, CHARLOTTE, NC 28289-0050
PO BOX 890051, CHARLOTTE, NC 28289-0051
PO BOX 890052, CHARLOTTE, NC 28289-0052
PO BOX 890053, CHARLOTTE, NC 28289-0053
PO BOX 890054, CHARLOTTE, NC 28289-0054
PO BOX 890055, CHARLOTTE, NC 28289-0055
PO BOX 890056, CHARLOTTE, NC 28289-0056
PO BOX 890057, CHARLOTTE, NC 28289-0057
PO BOX 890058, CHARLOTTE, NC 28289-0058
PO BOX 890059, CHARLOTTE, NC 28289-0059
PO BOX 890060, CHARLOTTE, NC 28289-0060
PO BOX 890061, CHARLOTTE, NC 28289-0061
PO BOX 890062, CHARLOTTE, NC 28289-0062
PO BOX 890063, CHARLOTTE, NC 28289-0063
PO BOX 890064, CHARLOTTE, NC 28289-0064
PO BOX 890065, CHARLOTTE, NC 28289-0065
PO BOX 890066, CHARLOTTE, NC 28289-0066
PO BOX 890067, CHARLOTTE, NC 28289-0067
PO BOX 890068, CHARLOTTE, NC 28289-0068
PO BOX 890069, CHARLOTTE, NC 28289-0069
PO BOX 890070, CHARLOTTE, NC 28289-0070
PO BOX 890071, CHARLOTTE, NC 28289-0071
PO BOX 890072, CHARLOTTE, NC 28289-0072
PO BOX 890073, CHARLOTTE, NC 28289-0073
PO BOX 890074, CHARLOTTE, NC 28289-0074
PO BOX 890075, CHARLOTTE, NC 28289-0075
PO BOX 890076, CHARLOTTE, NC 28289-0076
PO BOX 890077, CHARLOTTE, NC 28289-0077
PO BOX 890078, CHARLOTTE, NC 28289-0078
PO BOX 890079, CHARLOTTE, NC 28289-0079
PO BOX 890080, CHARLOTTE, NC 28289-0080
PO BOX 890081, CHARLOTTE, NC 28289-0081
PO BOX 890082, CHARLOTTE, NC 28289-0082
PO BOX 890083, CHARLOTTE, NC 28289-0083
PO BOX 890084, CHARLOTTE, NC 28289-0084
PO BOX 890085, CHARLOTTE, NC 28289-0085
PO BOX 890086, CHARLOTTE, NC 28289-0086
PO BOX 890087, CHARLOTTE, NC 28289-0087
PO BOX 890088, CHARLOTTE, NC 28289-0088
PO BOX 890089, CHARLOTTE, NC 28289-0089
PO BOX 890090, CHARLOTTE, NC 28289-0090
PO BOX 890091, CHARLOTTE, NC 28289-0091
PO BOX 890092, CHARLOTTE, NC 28289-0092
PO BOX 890093, CHARLOTTE, NC 28289-0093
PO BOX 890094, CHARLOTTE, NC 28289-0094
PO BOX 890095, CHARLOTTE, NC 28289-0095
PO BOX 890096, CHARLOTTE, NC 28289-0096
PO BOX 890097, CHARLOTTE, NC 28289-0097
PO BOX 890098, CHARLOTTE, NC 28289-0098
PO BOX 890099, CHARLOTTE, NC 28289-0099
PO BOX 890100, CHARLOTTE, NC 28289-0100
PO BOX 890101, CHARLOTTE, NC 28289-0101
PO BOX 890102, CHARLOTTE, NC 28289-0102
PO BOX 890103, CHARLOTTE, NC 28289-0103
PO BOX 890104, CHARLOTTE, NC 28289-0104
PO BOX 890105, CHARLOTTE, NC 28289-0105
PO BOX 890106, CHARLOTTE, NC 28289-0106
PO BOX 890107, CHARLOTTE, NC 28289-0107
PO BOX 890108, CHARLOTTE, NC 28289-0108
PO BOX 890109, CHARLOTTE, NC 28289-0109
PO BOX 890110, CHARLOTTE, NC 28289-0110
PO BOX 890111, CHARLOTTE, NC 28289-0111
PO BOX 890112, CHARLOTTE, NC 28289-0112
PO BOX 890113, CHARLOTTE, NC 28289-0113
PO BOX 890114, CHARLOTTE, NC 28289-0114
PO BOX 890115, CHARLOTTE, NC 28289-0115
PO BOX 890116, CHARLOTTE, NC 28289-0116
PO BOX 890117, CHARLOTTE, NC 28289-0117
PO BOX 890118, CHARLOTTE, NC 28289-0118
PO BOX 890119, CHARLOTTE, NC 28289-0119
PO BOX 890120, CHARLOTTE, NC 28289-0120
PO BOX 890121, CHARLOTTE, NC 28289-0121
PO BOX 890122, CHARLOTTE, NC 28289-0122
PO BOX 890123, CHARLOTTE, NC 28289-0123
PO BOX 890124, CHARLOTTE, NC 28289-0124
PO BOX 890125, CHARLOTTE, NC 28289-0125
PO BOX 890126, CHARLOTTE, NC 28289-0126
PO BOX 890127, CHARLOTTE, NC 28289-0127
PO BOX 890128, CHARLOTTE, NC 28289-0128
PO BOX 890129, CHARLOTTE, NC 28289-0129
PO BOX 890130, CHARLOTTE, NC 28289-0130
PO BOX 890131, CHARLOTTE, NC 28289-0131
PO BOX 890132, CHARLOTTE, NC 28289-0132
PO BOX 890133, CHARLOTTE, NC 28289-0133
PO BOX 890134, CHARLOTTE, NC 28289-0134
PO BOX 890135, CHARLOTTE, NC 28289-0135
PO BOX 890136, CHARLOTTE, NC 28289-0136
PO BOX 890137, CHARLOTTE, NC 28289-0137
PO BOX 890138, CHARLOTTE, NC 28289-0138
PO BOX 890139, CHARLOTTE, NC 28289-0139
PO BOX 890140, CHARLOTTE, NC 28289-0140
PO BOX 890141, CHARLOTTE, NC 28289-0141
PO BOX 890142, CHARLOTTE, NC 28289-0142
PO BOX 890143, CHARLOTTE, NC 28289-0143
PO BOX 890144, CHARLOTTE, NC 28289-0144
PO BOX 890145, CHARLOTTE, NC 28289-0145
PO BOX 890146, CHARLOTTE, NC 28289-0146
PO BOX 890147, CHARLOTTE, NC 28289-0147
PO BOX 890148, CHARLOTTE, NC 28289-0148
PO BOX 890149, CHARLOTTE, NC 28289-0149
PO BOX 890150, CHARLOTTE, NC 28289-0150
PO BOX 890151, CHARLOTTE, NC 28289-0151
PO BOX 890152, CHARLOTTE, NC 28289-0152
PO BOX 890153, CHARLOTTE, NC 28289-0153
PO BOX 890154, CHARLOTTE, NC 28289-0154
PO BOX 890155, CHARLOTTE, NC 28289-0155
PO BOX 890156, CHARLOTTE, NC 28289-0156
PO BOX 890157, CHARLOTTE, NC 28289-0157
PO BOX 890158, CHARLOTTE, NC 28289-0158
PO BOX 890159, CHARLOTTE, NC 28289-0159
PO BOX 890160, CHARLOTTE, NC 28289-0160
PO BOX 890161, CHARLOTTE, NC 28289-0161
PO BOX 890162, CHARLOTTE, NC 28289-0162
PO BOX 890163, CHARLOTTE, NC 28289-0163
PO BOX 890164, CHARLOTTE, NC 28289-0164
PO BOX 890165, CHARLOTTE, NC 28289-0165
PO BOX 890166, CHARLOTTE, NC 28289-0166
PO BOX 890167, CHARLOTTE, NC 28289-0167
PO BOX 890168, CHARLOTTE, NC 28289-0168
PO BOX 890169, CHARLOTTE, NC 28289-0169
PO BOX 890170, CHARLOTTE, NC 28289-0170
PO BOX 890171, CHARLOTTE, NC 28289-0171
PO BOX 890172, CHARLOTTE, NC 28289-0172
PO BOX 890173, CHARLOTTE, NC 28289-0173
PO BOX 890174, CHARLOTTE, NC 28289-0174
PO BOX 890175, CHARLOTTE, NC 28289-0175
PO BOX 890176, CHARLOTTE, NC 28289-0176
PO BOX 890177, CHARLOTTE, NC 28289-0177
PO BOX 890178, CHARLOTTE, NC 28289-0178
PO BOX 890179, CHARLOTTE, NC 28289-0179
PO BOX 890180, CHARLOTTE, NC 28289-0180
PO BOX 890181, CHARLOTTE, NC 28289-0181
PO BOX 890182, CHARLOTTE, NC 28289-0182
PO BOX 890183, CHARLOTTE, NC 28289-0183
PO BOX 890184, CHARLOTTE, NC 28289-0184
PO BOX 890185, CHARLOTTE, NC 28289-0185
PO BOX 890186, CHARLOTTE, NC 28289-0186
PO BOX 890187, CHARLOTTE, NC 28289-0187
PO BOX 890188, CHARLOTTE, NC 28289-0188
PO BOX 890189, CHARLOTTE, NC 28289-0189
PO BOX 890190, CHARLOTTE, NC 28289-0190
PO BOX 890191, CHARLOTTE, NC 28289-0191
PO BOX 890192, CHARLOTTE, NC 28289-0192
PO BOX 890193, CHARLOTTE, NC 28289-0193
PO BOX 890194, CHARLOTTE, NC 28289-0194
PO BOX 890195, CHARLOTTE, NC 28289-0195
PO BOX 890196, CHARLOTTE, NC 28289-0196
PO BOX 890197, CHARLOTTE, NC 28289-0197
PO BOX 890198, CHARLOTTE, NC 28289-0198
PO BOX 890199, CHARLOTTE, NC 28289-0199
PO BOX 890200, CHARLOTTE, NC 28289-0200
PO BOX 890201, CHARLOTTE, NC 28289-0201
PO BOX 890202, CHARLOTTE, NC 28289-0202
PO BOX 890203, CHARLOTTE, NC 28289-0203