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, BRIGGSDALE, CO 80611-0001
PO BOX 2, BRIGGSDALE, CO 80611-0002
PO BOX 3, BRIGGSDALE, CO 80611-0003
PO BOX 4, BRIGGSDALE, CO 80611-0004
PO BOX 5, BRIGGSDALE, CO 80611-0005
PO BOX 6, BRIGGSDALE, CO 80611-0006
PO BOX 7, BRIGGSDALE, CO 80611-0007
PO BOX 8, BRIGGSDALE, CO 80611-0008
PO BOX 9, BRIGGSDALE, CO 80611-0009
PO BOX 10, BRIGGSDALE, CO 80611-0010
PO BOX 11, BRIGGSDALE, CO 80611-0011
PO BOX 12, BRIGGSDALE, CO 80611-0012
PO BOX 13, BRIGGSDALE, CO 80611-0013
PO BOX 14, BRIGGSDALE, CO 80611-0014
PO BOX 15, BRIGGSDALE, CO 80611-0015
PO BOX 16, BRIGGSDALE, CO 80611-0016
PO BOX 17, BRIGGSDALE, CO 80611-0017
PO BOX 18, BRIGGSDALE, CO 80611-0018
PO BOX 19, BRIGGSDALE, CO 80611-0019
PO BOX 20, BRIGGSDALE, CO 80611-0020
PO BOX 21, BRIGGSDALE, CO 80611-0021
PO BOX 22, BRIGGSDALE, CO 80611-0022
PO BOX 23, BRIGGSDALE, CO 80611-0023
PO BOX 24, BRIGGSDALE, CO 80611-0024
PO BOX 25, BRIGGSDALE, CO 80611-0025
PO BOX 26, BRIGGSDALE, CO 80611-0026
PO BOX 27, BRIGGSDALE, CO 80611-0027
PO BOX 28, BRIGGSDALE, CO 80611-0028
PO BOX 29, BRIGGSDALE, CO 80611-0029
PO BOX 30, BRIGGSDALE, CO 80611-0030
PO BOX 31, BRIGGSDALE, CO 80611-0031
PO BOX 32, BRIGGSDALE, CO 80611-0032
PO BOX 33, BRIGGSDALE, CO 80611-0033
PO BOX 34, BRIGGSDALE, CO 80611-0034
PO BOX 35, BRIGGSDALE, CO 80611-0035
PO BOX 36, BRIGGSDALE, CO 80611-0036
PO BOX 37, BRIGGSDALE, CO 80611-0037
PO BOX 38, BRIGGSDALE, CO 80611-0038
PO BOX 39, BRIGGSDALE, CO 80611-0039
PO BOX 40, BRIGGSDALE, CO 80611-0040
PO BOX 41, BRIGGSDALE, CO 80611-0041
PO BOX 42, BRIGGSDALE, CO 80611-0042
PO BOX 43, BRIGGSDALE, CO 80611-0043
PO BOX 44, BRIGGSDALE, CO 80611-0044
PO BOX 45, BRIGGSDALE, CO 80611-0045
PO BOX 46, BRIGGSDALE, CO 80611-0046
PO BOX 47, BRIGGSDALE, CO 80611-0047
PO BOX 48, BRIGGSDALE, CO 80611-0048
PO BOX 49, BRIGGSDALE, CO 80611-0049
PO BOX 50, BRIGGSDALE, CO 80611-0050
PO BOX 51, BRIGGSDALE, CO 80611-0051
PO BOX 52, BRIGGSDALE, CO 80611-0052
PO BOX 53, BRIGGSDALE, CO 80611-0053
PO BOX 54, BRIGGSDALE, CO 80611-0054
PO BOX 55, BRIGGSDALE, CO 80611-0055
PO BOX 56, BRIGGSDALE, CO 80611-0056
PO BOX 57, BRIGGSDALE, CO 80611-0057
PO BOX 58, BRIGGSDALE, CO 80611-0058
PO BOX 59, BRIGGSDALE, CO 80611-0059
PO BOX 60, BRIGGSDALE, CO 80611-0060
PO BOX 61, BRIGGSDALE, CO 80611-0061
PO BOX 62, BRIGGSDALE, CO 80611-0062
PO BOX 63, BRIGGSDALE, CO 80611-0063
PO BOX 64, BRIGGSDALE, CO 80611-0064
PO BOX 65, BRIGGSDALE, CO 80611-0065
PO BOX 66, BRIGGSDALE, CO 80611-0066
PO BOX 67, BRIGGSDALE, CO 80611-0067
PO BOX 68, BRIGGSDALE, CO 80611-0068
PO BOX 69, BRIGGSDALE, CO 80611-0069
PO BOX 70, BRIGGSDALE, CO 80611-0070
PO BOX 71, BRIGGSDALE, CO 80611-0071
PO BOX 72, BRIGGSDALE, CO 80611-0072
PO BOX 73, BRIGGSDALE, CO 80611-0073
PO BOX 74, BRIGGSDALE, CO 80611-0074
PO BOX 75, BRIGGSDALE, CO 80611-0075
PO BOX 76, BRIGGSDALE, CO 80611-0076
PO BOX 77, BRIGGSDALE, CO 80611-0077
PO BOX 78, BRIGGSDALE, CO 80611-0078
PO BOX 79, BRIGGSDALE, CO 80611-0079
PO BOX 80, BRIGGSDALE, CO 80611-0080
PO BOX 81, BRIGGSDALE, CO 80611-0081
PO BOX 82, BRIGGSDALE, CO 80611-0082
PO BOX 83, BRIGGSDALE, CO 80611-0083
PO BOX 84, BRIGGSDALE, CO 80611-0084
PO BOX 85, BRIGGSDALE, CO 80611-0085
PO BOX 86, BRIGGSDALE, CO 80611-0086
PO BOX 87, BRIGGSDALE, CO 80611-0087
PO BOX 88, BRIGGSDALE, CO 80611-0088
PO BOX 89, BRIGGSDALE, CO 80611-0089
PO BOX 90, BRIGGSDALE, CO 80611-0090
PO BOX 91, BRIGGSDALE, CO 80611-0091
PO BOX 92, BRIGGSDALE, CO 80611-0092
PO BOX 93, BRIGGSDALE, CO 80611-0093
PO BOX 94, BRIGGSDALE, CO 80611-0094
PO BOX 95, BRIGGSDALE, CO 80611-0095
PO BOX 96, BRIGGSDALE, CO 80611-0096
PO BOX 97, BRIGGSDALE, CO 80611-0097
PO BOX 98, BRIGGSDALE, CO 80611-0098
PO BOX 99, BRIGGSDALE, CO 80611-0099
PO BOX 100, BRIGGSDALE, CO 80611-0100
PO BOX 101, BRIGGSDALE, CO 80611-0101
PO BOX 102, BRIGGSDALE, CO 80611-0102
PO BOX 103, BRIGGSDALE, CO 80611-0103
PO BOX 104, BRIGGSDALE, CO 80611-0104
PO BOX 105, BRIGGSDALE, CO 80611-0105
PO BOX 106, BRIGGSDALE, CO 80611-0106
PO BOX 107, BRIGGSDALE, CO 80611-0107
PO BOX 108, BRIGGSDALE, CO 80611-0108
PO BOX 109, BRIGGSDALE, CO 80611-0109
PO BOX 110, BRIGGSDALE, CO 80611-0110
PO BOX 111, BRIGGSDALE, CO 80611-0111
PO BOX 112, BRIGGSDALE, CO 80611-0112
PO BOX 113, BRIGGSDALE, CO 80611-0113
PO BOX 114, BRIGGSDALE, CO 80611-0114
PO BOX 115, BRIGGSDALE, CO 80611-0115
PO BOX 116, BRIGGSDALE, CO 80611-0116
PO BOX 117, BRIGGSDALE, CO 80611-0117
PO BOX 118, BRIGGSDALE, CO 80611-0118
PO BOX 119, BRIGGSDALE, CO 80611-0119
PO BOX 120, BRIGGSDALE, CO 80611-0120
PO BOX 121, BRIGGSDALE, CO 80611-0121
PO BOX 122, BRIGGSDALE, CO 80611-0122
PO BOX 123, BRIGGSDALE, CO 80611-0123
PO BOX 124, BRIGGSDALE, CO 80611-0124
PO BOX 125, BRIGGSDALE, CO 80611-0125
PO BOX 126, BRIGGSDALE, CO 80611-0126
PO BOX 127, BRIGGSDALE, CO 80611-0127
PO BOX 128, BRIGGSDALE, CO 80611-0128
PO BOX 129, BRIGGSDALE, CO 80611-0129
PO BOX 130, BRIGGSDALE, CO 80611-0130
PO BOX 131, BRIGGSDALE, CO 80611-0131
PO BOX 132, BRIGGSDALE, CO 80611-0132
PO BOX 133, BRIGGSDALE, CO 80611-0133
PO BOX 134, BRIGGSDALE, CO 80611-0134
PO BOX 135, BRIGGSDALE, CO 80611-0135
PO BOX 136, BRIGGSDALE, CO 80611-0136
PO BOX 137, BRIGGSDALE, CO 80611-0137
PO BOX 138, BRIGGSDALE, CO 80611-0138
PO BOX 139, BRIGGSDALE, CO 80611-0139
PO BOX 140, BRIGGSDALE, CO 80611-0140
PO BOX 141, BRIGGSDALE, CO 80611-0141
PO BOX 142, BRIGGSDALE, CO 80611-0142
PO BOX 143, BRIGGSDALE, CO 80611-0143
PO BOX 144, BRIGGSDALE, CO 80611-0144
PO BOX 145, BRIGGSDALE, CO 80611-0145
PO BOX 146, BRIGGSDALE, CO 80611-0146
PO BOX 147, BRIGGSDALE, CO 80611-0147
PO BOX 148, BRIGGSDALE, CO 80611-0148
PO BOX 149, BRIGGSDALE, CO 80611-0149
PO BOX 150, BRIGGSDALE, CO 80611-0150
PO BOX 151, BRIGGSDALE, CO 80611-0151
PO BOX 152, BRIGGSDALE, CO 80611-0152
PO BOX 153, BRIGGSDALE, CO 80611-0153
PO BOX 154, BRIGGSDALE, CO 80611-0154
PO BOX 155, BRIGGSDALE, CO 80611-0155
PO BOX 156, BRIGGSDALE, CO 80611-0156
PO BOX 157, BRIGGSDALE, CO 80611-0157
PO BOX 158, BRIGGSDALE, CO 80611-0158
PO BOX 159, BRIGGSDALE, CO 80611-0159
PO BOX 160, BRIGGSDALE, CO 80611-0160
PO BOX 161, BRIGGSDALE, CO 80611-0161
PO BOX 162, BRIGGSDALE, CO 80611-0162
PO BOX 163, BRIGGSDALE, CO 80611-0163
PO BOX 164, BRIGGSDALE, CO 80611-0164
PO BOX 165, BRIGGSDALE, CO 80611-0165
PO BOX 166, BRIGGSDALE, CO 80611-0166
PO BOX 167, BRIGGSDALE, CO 80611-0167
PO BOX 168, BRIGGSDALE, CO 80611-0168
PO BOX 169, BRIGGSDALE, CO 80611-0169
PO BOX 170, BRIGGSDALE, CO 80611-0170
PO BOX 171, BRIGGSDALE, CO 80611-0171
PO BOX 172, BRIGGSDALE, CO 80611-0172
PO BOX 173, BRIGGSDALE, CO 80611-0173
PO BOX 174, BRIGGSDALE, CO 80611-0174
PO BOX 175, BRIGGSDALE, CO 80611-0175
PO BOX 176, BRIGGSDALE, CO 80611-0176
PO BOX 177, BRIGGSDALE, CO 80611-0177
PO BOX 178, BRIGGSDALE, CO 80611-0178
Add new comment