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 10, SAND SPRINGS, OK 74063-0010
PO BOX 11, SAND SPRINGS, OK 74063-0011
PO BOX 12, SAND SPRINGS, OK 74063-0012
PO BOX 13, SAND SPRINGS, OK 74063-0013
PO BOX 14, SAND SPRINGS, OK 74063-0014
PO BOX 15, SAND SPRINGS, OK 74063-0015
PO BOX 16, SAND SPRINGS, OK 74063-0016
PO BOX 17, SAND SPRINGS, OK 74063-0017
PO BOX 18, SAND SPRINGS, OK 74063-0018
PO BOX 19, SAND SPRINGS, OK 74063-0019
PO BOX 20, SAND SPRINGS, OK 74063-0020
PO BOX 21, SAND SPRINGS, OK 74063-0021
PO BOX 22, SAND SPRINGS, OK 74063-0022
PO BOX 23, SAND SPRINGS, OK 74063-0023
PO BOX 24, SAND SPRINGS, OK 74063-0024
PO BOX 25, SAND SPRINGS, OK 74063-0025
PO BOX 26, SAND SPRINGS, OK 74063-0026
PO BOX 27, SAND SPRINGS, OK 74063-0027
PO BOX 28, SAND SPRINGS, OK 74063-0028
PO BOX 29, SAND SPRINGS, OK 74063-0029
PO BOX 30, SAND SPRINGS, OK 74063-0030
PO BOX 31, SAND SPRINGS, OK 74063-0031
PO BOX 32, SAND SPRINGS, OK 74063-0032
PO BOX 33, SAND SPRINGS, OK 74063-0033
PO BOX 34, SAND SPRINGS, OK 74063-0034
PO BOX 35, SAND SPRINGS, OK 74063-0035
PO BOX 36, SAND SPRINGS, OK 74063-0036
PO BOX 37, SAND SPRINGS, OK 74063-0037
PO BOX 38, SAND SPRINGS, OK 74063-0038
PO BOX 39, SAND SPRINGS, OK 74063-0039
PO BOX 40, SAND SPRINGS, OK 74063-0040
PO BOX 41, SAND SPRINGS, OK 74063-0041
PO BOX 42, SAND SPRINGS, OK 74063-0042
PO BOX 43, SAND SPRINGS, OK 74063-0043
PO BOX 44, SAND SPRINGS, OK 74063-0044
PO BOX 45, SAND SPRINGS, OK 74063-0045
PO BOX 46, SAND SPRINGS, OK 74063-0046
PO BOX 47, SAND SPRINGS, OK 74063-0047
PO BOX 48, SAND SPRINGS, OK 74063-0048
PO BOX 49, SAND SPRINGS, OK 74063-0049
PO BOX 50, SAND SPRINGS, OK 74063-0050
PO BOX 51, SAND SPRINGS, OK 74063-0051
PO BOX 52, SAND SPRINGS, OK 74063-0052
PO BOX 53, SAND SPRINGS, OK 74063-0053
PO BOX 54, SAND SPRINGS, OK 74063-0054
PO BOX 55, SAND SPRINGS, OK 74063-0055
PO BOX 56, SAND SPRINGS, OK 74063-0056
PO BOX 57, SAND SPRINGS, OK 74063-0057
PO BOX 58, SAND SPRINGS, OK 74063-0058
PO BOX 59, SAND SPRINGS, OK 74063-0059
PO BOX 60, SAND SPRINGS, OK 74063-0060
PO BOX 61, SAND SPRINGS, OK 74063-0061
PO BOX 62, SAND SPRINGS, OK 74063-0062
PO BOX 63, SAND SPRINGS, OK 74063-0063
PO BOX 64, SAND SPRINGS, OK 74063-0064
PO BOX 65, SAND SPRINGS, OK 74063-0065
PO BOX 66, SAND SPRINGS, OK 74063-0066
PO BOX 67, SAND SPRINGS, OK 74063-0067
PO BOX 68, SAND SPRINGS, OK 74063-0068
PO BOX 69, SAND SPRINGS, OK 74063-0069
PO BOX 70, SAND SPRINGS, OK 74063-0070
PO BOX 71, SAND SPRINGS, OK 74063-0071
PO BOX 72, SAND SPRINGS, OK 74063-0072
PO BOX 73, SAND SPRINGS, OK 74063-0073
PO BOX 74, SAND SPRINGS, OK 74063-0074
PO BOX 75, SAND SPRINGS, OK 74063-0075
PO BOX 76, SAND SPRINGS, OK 74063-0076
PO BOX 77, SAND SPRINGS, OK 74063-0077
PO BOX 78, SAND SPRINGS, OK 74063-0078
PO BOX 79, SAND SPRINGS, OK 74063-0079
PO BOX 80, SAND SPRINGS, OK 74063-0080
PO BOX 81, SAND SPRINGS, OK 74063-0081
PO BOX 82, SAND SPRINGS, OK 74063-0082
PO BOX 83, SAND SPRINGS, OK 74063-0083
PO BOX 84, SAND SPRINGS, OK 74063-0084
PO BOX 85, SAND SPRINGS, OK 74063-0085
PO BOX 86, SAND SPRINGS, OK 74063-0086
PO BOX 87, SAND SPRINGS, OK 74063-0087
PO BOX 88, SAND SPRINGS, OK 74063-0088
PO BOX 89, SAND SPRINGS, OK 74063-0089
PO BOX 90, SAND SPRINGS, OK 74063-0090
PO BOX 91, SAND SPRINGS, OK 74063-0091
PO BOX 92, SAND SPRINGS, OK 74063-0092
PO BOX 93, SAND SPRINGS, OK 74063-0093
PO BOX 94, SAND SPRINGS, OK 74063-0094
PO BOX 95, SAND SPRINGS, OK 74063-0095
PO BOX 96, SAND SPRINGS, OK 74063-0096
PO BOX 97, SAND SPRINGS, OK 74063-0097
PO BOX 98, SAND SPRINGS, OK 74063-0098
PO BOX 99, SAND SPRINGS, OK 74063-0099
PO BOX 100, SAND SPRINGS, OK 74063-0100
PO BOX 101, SAND SPRINGS, OK 74063-0101
PO BOX 102, SAND SPRINGS, OK 74063-0102
PO BOX 103, SAND SPRINGS, OK 74063-0103
PO BOX 104, SAND SPRINGS, OK 74063-0104
PO BOX 105, SAND SPRINGS, OK 74063-0105
PO BOX 106, SAND SPRINGS, OK 74063-0106
PO BOX 107, SAND SPRINGS, OK 74063-0107
PO BOX 108, SAND SPRINGS, OK 74063-0108
PO BOX 109, SAND SPRINGS, OK 74063-0109
PO BOX 110, SAND SPRINGS, OK 74063-0110
PO BOX 111, SAND SPRINGS, OK 74063-0111
PO BOX 112, SAND SPRINGS, OK 74063-0112
PO BOX 113, SAND SPRINGS, OK 74063-0113
PO BOX 114, SAND SPRINGS, OK 74063-0114
PO BOX 115, SAND SPRINGS, OK 74063-0115
PO BOX 116, SAND SPRINGS, OK 74063-0116
PO BOX 117, SAND SPRINGS, OK 74063-0117
PO BOX 118, SAND SPRINGS, OK 74063-0118
PO BOX 119, SAND SPRINGS, OK 74063-0119
PO BOX 120, SAND SPRINGS, OK 74063-0120
PO BOX 121, SAND SPRINGS, OK 74063-0121
PO BOX 122, SAND SPRINGS, OK 74063-0122
PO BOX 123, SAND SPRINGS, OK 74063-0123
PO BOX 124, SAND SPRINGS, OK 74063-0124
PO BOX 125, SAND SPRINGS, OK 74063-0125
PO BOX 126, SAND SPRINGS, OK 74063-0126
PO BOX 127, SAND SPRINGS, OK 74063-0127
PO BOX 128, SAND SPRINGS, OK 74063-0128
PO BOX 129, SAND SPRINGS, OK 74063-0129
PO BOX 130, SAND SPRINGS, OK 74063-0130
PO BOX 131, SAND SPRINGS, OK 74063-0131
PO BOX 132, SAND SPRINGS, OK 74063-0132
PO BOX 133, SAND SPRINGS, OK 74063-0133
PO BOX 134, SAND SPRINGS, OK 74063-0134
PO BOX 135, SAND SPRINGS, OK 74063-0135
PO BOX 136, SAND SPRINGS, OK 74063-0136
PO BOX 137, SAND SPRINGS, OK 74063-0137
PO BOX 138, SAND SPRINGS, OK 74063-0138
PO BOX 139, SAND SPRINGS, OK 74063-0139
PO BOX 140, SAND SPRINGS, OK 74063-0140
PO BOX 141, SAND SPRINGS, OK 74063-0141
PO BOX 142, SAND SPRINGS, OK 74063-0142
PO BOX 143, SAND SPRINGS, OK 74063-0143
PO BOX 144, SAND SPRINGS, OK 74063-0144
PO BOX 145, SAND SPRINGS, OK 74063-0145
PO BOX 146, SAND SPRINGS, OK 74063-0146
PO BOX 147, SAND SPRINGS, OK 74063-0147
PO BOX 148, SAND SPRINGS, OK 74063-0148
PO BOX 149, SAND SPRINGS, OK 74063-0149
PO BOX 150, SAND SPRINGS, OK 74063-0150
PO BOX 151, SAND SPRINGS, OK 74063-0151
PO BOX 152, SAND SPRINGS, OK 74063-0152
PO BOX 153, SAND SPRINGS, OK 74063-0153
PO BOX 154, SAND SPRINGS, OK 74063-0154
PO BOX 155, SAND SPRINGS, OK 74063-0155
PO BOX 156, SAND SPRINGS, OK 74063-0156
PO BOX 157, SAND SPRINGS, OK 74063-0157
PO BOX 158, SAND SPRINGS, OK 74063-0158
PO BOX 159, SAND SPRINGS, OK 74063-0159
PO BOX 160, SAND SPRINGS, OK 74063-0160
PO BOX 161, SAND SPRINGS, OK 74063-0161
PO BOX 162, SAND SPRINGS, OK 74063-0162
PO BOX 163, SAND SPRINGS, OK 74063-0163
PO BOX 164, SAND SPRINGS, OK 74063-0164
PO BOX 165, SAND SPRINGS, OK 74063-0165
PO BOX 166, SAND SPRINGS, OK 74063-0166
PO BOX 167, SAND SPRINGS, OK 74063-0167
PO BOX 168, SAND SPRINGS, OK 74063-0168
PO BOX 169, SAND SPRINGS, OK 74063-0169
PO BOX 170, SAND SPRINGS, OK 74063-0170
PO BOX 171, SAND SPRINGS, OK 74063-0171
PO BOX 172, SAND SPRINGS, OK 74063-0172
PO BOX 173, SAND SPRINGS, OK 74063-0173
PO BOX 174, SAND SPRINGS, OK 74063-0174
PO BOX 175, SAND SPRINGS, OK 74063-0175
PO BOX 176, SAND SPRINGS, OK 74063-0176
PO BOX 177, SAND SPRINGS, OK 74063-0177
PO BOX 178, SAND SPRINGS, OK 74063-0178
PO BOX 179, SAND SPRINGS, OK 74063-0179
PO BOX 180, SAND SPRINGS, OK 74063-0180
PO BOX 181, SAND SPRINGS, OK 74063-0181
PO BOX 182, SAND SPRINGS, OK 74063-0182
PO BOX 183, SAND SPRINGS, OK 74063-0183
PO BOX 184, SAND SPRINGS, OK 74063-0184
PO BOX 185, SAND SPRINGS, OK 74063-0185
PO BOX 186, SAND SPRINGS, OK 74063-0186
PO BOX 187, SAND SPRINGS, OK 74063-0187
PO BOX 188, SAND SPRINGS, OK 74063-0188
PO BOX 189, SAND SPRINGS, OK 74063-0189
PO BOX 190, SAND SPRINGS, OK 74063-0190
PO BOX 191, SAND SPRINGS, OK 74063-0191
PO BOX 192, SAND SPRINGS, OK 74063-0192
PO BOX 193, SAND SPRINGS, OK 74063-0193
PO BOX 194, SAND SPRINGS, OK 74063-0194
PO BOX 195, SAND SPRINGS, OK 74063-0195
PO BOX 196, SAND SPRINGS, OK 74063-0196
PO BOX 197, SAND SPRINGS, OK 74063-0197
PO BOX 198, SAND SPRINGS, OK 74063-0198
PO BOX 199, SAND SPRINGS, OK 74063-0199
PO BOX 200, SAND SPRINGS, OK 74063-0200
PO BOX 201, SAND SPRINGS, OK 74063-0201
PO BOX 202, SAND SPRINGS, OK 74063-0202
PO BOX 203, SAND SPRINGS, OK 74063-0203
PO BOX 204, SAND SPRINGS, OK 74063-0204
PO BOX 205, SAND SPRINGS, OK 74063-0205
PO BOX 206, SAND SPRINGS, OK 74063-0206
PO BOX 207, SAND SPRINGS, OK 74063-0207
PO BOX 208, SAND SPRINGS, OK 74063-0208
PO BOX 209, SAND SPRINGS, OK 74063-0209
PO BOX 210, SAND SPRINGS, OK 74063-0210