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, POINT OF ROCKS, WY 82942-0001
PO BOX 2, POINT OF ROCKS, WY 82942-0002
PO BOX 3, POINT OF ROCKS, WY 82942-0003
PO BOX 4, POINT OF ROCKS, WY 82942-0004
PO BOX 5, POINT OF ROCKS, WY 82942-0005
PO BOX 6, POINT OF ROCKS, WY 82942-0006
PO BOX 7, POINT OF ROCKS, WY 82942-0007
PO BOX 8, POINT OF ROCKS, WY 82942-0008
PO BOX 9, POINT OF ROCKS, WY 82942-0009
PO BOX 10, POINT OF ROCKS, WY 82942-0010
PO BOX 11, POINT OF ROCKS, WY 82942-0011
PO BOX 12, POINT OF ROCKS, WY 82942-0012
PO BOX 13, POINT OF ROCKS, WY 82942-0013
PO BOX 14, POINT OF ROCKS, WY 82942-0014
PO BOX 15, POINT OF ROCKS, WY 82942-0015
PO BOX 16, POINT OF ROCKS, WY 82942-0016
PO BOX 17, POINT OF ROCKS, WY 82942-0017
PO BOX 18, POINT OF ROCKS, WY 82942-0018
PO BOX 19, POINT OF ROCKS, WY 82942-0019
PO BOX 20, POINT OF ROCKS, WY 82942-0020
PO BOX 21, POINT OF ROCKS, WY 82942-0021
PO BOX 22, POINT OF ROCKS, WY 82942-0022
PO BOX 23, POINT OF ROCKS, WY 82942-0023
PO BOX 24, POINT OF ROCKS, WY 82942-0024
PO BOX 25, POINT OF ROCKS, WY 82942-0025
PO BOX 26, POINT OF ROCKS, WY 82942-0026
PO BOX 27, POINT OF ROCKS, WY 82942-0027
PO BOX 28, POINT OF ROCKS, WY 82942-0028
PO BOX 29, POINT OF ROCKS, WY 82942-0029
PO BOX 30, POINT OF ROCKS, WY 82942-0030
PO BOX 31, POINT OF ROCKS, WY 82942-0031
PO BOX 32, POINT OF ROCKS, WY 82942-0032
PO BOX 33, POINT OF ROCKS, WY 82942-0033
PO BOX 34, POINT OF ROCKS, WY 82942-0034
PO BOX 35, POINT OF ROCKS, WY 82942-0035
PO BOX 36, POINT OF ROCKS, WY 82942-0036
PO BOX 37, POINT OF ROCKS, WY 82942-0037
PO BOX 38, POINT OF ROCKS, WY 82942-0038
PO BOX 39, POINT OF ROCKS, WY 82942-0039
PO BOX 40, POINT OF ROCKS, WY 82942-0040
PO BOX 41, POINT OF ROCKS, WY 82942-0041
PO BOX 42, POINT OF ROCKS, WY 82942-0042
PO BOX 43, POINT OF ROCKS, WY 82942-0043
PO BOX 44, POINT OF ROCKS, WY 82942-0044
PO BOX 45, POINT OF ROCKS, WY 82942-0045
PO BOX 46, POINT OF ROCKS, WY 82942-0046
PO BOX 47, POINT OF ROCKS, WY 82942-0047
PO BOX 48, POINT OF ROCKS, WY 82942-0048
PO BOX 49, POINT OF ROCKS, WY 82942-0049
PO BOX 50, POINT OF ROCKS, WY 82942-0050
PO BOX 51, POINT OF ROCKS, WY 82942-0051
PO BOX 52, POINT OF ROCKS, WY 82942-0052
PO BOX 53, POINT OF ROCKS, WY 82942-0053
PO BOX 54, POINT OF ROCKS, WY 82942-0054
PO BOX 55, POINT OF ROCKS, WY 82942-0055
PO BOX 56, POINT OF ROCKS, WY 82942-0056
PO BOX 57, POINT OF ROCKS, WY 82942-0057
PO BOX 58, POINT OF ROCKS, WY 82942-0058
PO BOX 59, POINT OF ROCKS, WY 82942-0059
PO BOX 60, POINT OF ROCKS, WY 82942-0060
PO BOX 61, POINT OF ROCKS, WY 82942-0061
PO BOX 62, POINT OF ROCKS, WY 82942-0062
PO BOX 63, POINT OF ROCKS, WY 82942-0063
PO BOX 64, POINT OF ROCKS, WY 82942-0064
PO BOX 65, POINT OF ROCKS, WY 82942-0065
PO BOX 66, POINT OF ROCKS, WY 82942-0066
PO BOX 67, POINT OF ROCKS, WY 82942-0067
PO BOX 68, POINT OF ROCKS, WY 82942-0068
PO BOX 69, POINT OF ROCKS, WY 82942-0069
PO BOX 70, POINT OF ROCKS, WY 82942-0070
PO BOX 71, POINT OF ROCKS, WY 82942-0071
PO BOX 72, POINT OF ROCKS, WY 82942-0072
PO BOX 73, POINT OF ROCKS, WY 82942-0073
PO BOX 74, POINT OF ROCKS, WY 82942-0074
PO BOX 75, POINT OF ROCKS, WY 82942-0075
PO BOX 76, POINT OF ROCKS, WY 82942-0076
PO BOX 77, POINT OF ROCKS, WY 82942-0077
PO BOX 78, POINT OF ROCKS, WY 82942-0078
PO BOX 79, POINT OF ROCKS, WY 82942-0079
PO BOX 80, POINT OF ROCKS, WY 82942-0080
PO BOX 81, POINT OF ROCKS, WY 82942-0081
PO BOX 82, POINT OF ROCKS, WY 82942-0082
PO BOX 83, POINT OF ROCKS, WY 82942-0083
PO BOX 84, POINT OF ROCKS, WY 82942-0084
PO BOX 85, POINT OF ROCKS, WY 82942-0085
PO BOX 86, POINT OF ROCKS, WY 82942-0086
PO BOX 87, POINT OF ROCKS, WY 82942-0087
PO BOX 88, POINT OF ROCKS, WY 82942-0088
PO BOX 89, POINT OF ROCKS, WY 82942-0089
PO BOX 90, POINT OF ROCKS, WY 82942-0090
PO BOX 91, POINT OF ROCKS, WY 82942-0091
PO BOX 92, POINT OF ROCKS, WY 82942-0092
PO BOX 93, POINT OF ROCKS, WY 82942-0093
PO BOX 94, POINT OF ROCKS, WY 82942-0094
PO BOX 95, POINT OF ROCKS, WY 82942-0095
PO BOX 96, POINT OF ROCKS, WY 82942-0096
PO BOX 97, POINT OF ROCKS, WY 82942-0097
PO BOX 98, POINT OF ROCKS, WY 82942-0098
PO BOX 99, POINT OF ROCKS, WY 82942-0099
PO BOX 100, POINT OF ROCKS, WY 82942-0100
PO BOX 101, POINT OF ROCKS, WY 82942-0101
PO BOX 102, POINT OF ROCKS, WY 82942-0102
PO BOX 103, POINT OF ROCKS, WY 82942-0103
PO BOX 104, POINT OF ROCKS, WY 82942-0104
PO BOX 105, POINT OF ROCKS, WY 82942-0105
PO BOX 106, POINT OF ROCKS, WY 82942-0106
PO BOX 107, POINT OF ROCKS, WY 82942-0107
PO BOX 108, POINT OF ROCKS, WY 82942-0108
PO BOX 109, POINT OF ROCKS, WY 82942-0109
PO BOX 110, POINT OF ROCKS, WY 82942-0110
PO BOX 111, POINT OF ROCKS, WY 82942-0111
PO BOX 112, POINT OF ROCKS, WY 82942-0112
PO BOX 113, POINT OF ROCKS, WY 82942-0113
PO BOX 114, POINT OF ROCKS, WY 82942-0114
PO BOX 115, POINT OF ROCKS, WY 82942-0115
PO BOX 116, POINT OF ROCKS, WY 82942-0116
PO BOX 117, POINT OF ROCKS, WY 82942-0117
PO BOX 118, POINT OF ROCKS, WY 82942-0118