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, YOSEMITE NATIONAL PARK, CA 95389-0001
PO BOX 2, YOSEMITE NATIONAL PARK, CA 95389-0002
PO BOX 3, YOSEMITE NATIONAL PARK, CA 95389-0003
PO BOX 4, YOSEMITE NATIONAL PARK, CA 95389-0004
PO BOX 5, YOSEMITE NATIONAL PARK, CA 95389-0005
PO BOX 6, YOSEMITE NATIONAL PARK, CA 95389-0006
PO BOX 7, YOSEMITE NATIONAL PARK, CA 95389-0007
PO BOX 8, YOSEMITE NATIONAL PARK, CA 95389-0008
PO BOX 9, YOSEMITE NATIONAL PARK, CA 95389-0009
PO BOX 10, YOSEMITE NATIONAL PARK, CA 95389-0010
PO BOX 11, YOSEMITE NATIONAL PARK, CA 95389-0011
PO BOX 12, YOSEMITE NATIONAL PARK, CA 95389-0012
PO BOX 13, YOSEMITE NATIONAL PARK, CA 95389-0013
PO BOX 14, YOSEMITE NATIONAL PARK, CA 95389-0014
PO BOX 15, YOSEMITE NATIONAL PARK, CA 95389-0015
PO BOX 16, YOSEMITE NATIONAL PARK, CA 95389-0016
PO BOX 17, YOSEMITE NATIONAL PARK, CA 95389-0017
PO BOX 18, YOSEMITE NATIONAL PARK, CA 95389-0018
PO BOX 19, YOSEMITE NATIONAL PARK, CA 95389-0019
PO BOX 20, YOSEMITE NATIONAL PARK, CA 95389-0020
PO BOX 21, YOSEMITE NATIONAL PARK, CA 95389-0021
PO BOX 22, YOSEMITE NATIONAL PARK, CA 95389-0022
PO BOX 23, YOSEMITE NATIONAL PARK, CA 95389-0023
PO BOX 24, YOSEMITE NATIONAL PARK, CA 95389-0024
PO BOX 25, YOSEMITE NATIONAL PARK, CA 95389-0025
PO BOX 26, YOSEMITE NATIONAL PARK, CA 95389-0026
PO BOX 27, YOSEMITE NATIONAL PARK, CA 95389-0027
PO BOX 28, YOSEMITE NATIONAL PARK, CA 95389-0028
PO BOX 29, YOSEMITE NATIONAL PARK, CA 95389-0029
PO BOX 30, YOSEMITE NATIONAL PARK, CA 95389-0030
PO BOX 31, YOSEMITE NATIONAL PARK, CA 95389-0031
PO BOX 32, YOSEMITE NATIONAL PARK, CA 95389-0032
PO BOX 33, YOSEMITE NATIONAL PARK, CA 95389-0033
PO BOX 34, YOSEMITE NATIONAL PARK, CA 95389-0034
PO BOX 35, YOSEMITE NATIONAL PARK, CA 95389-0035
PO BOX 36, YOSEMITE NATIONAL PARK, CA 95389-0036
PO BOX 37, YOSEMITE NATIONAL PARK, CA 95389-0037
PO BOX 38, YOSEMITE NATIONAL PARK, CA 95389-0038
PO BOX 39, YOSEMITE NATIONAL PARK, CA 95389-0039
PO BOX 40, YOSEMITE NATIONAL PARK, CA 95389-0040
PO BOX 41, YOSEMITE NATIONAL PARK, CA 95389-0041
PO BOX 42, YOSEMITE NATIONAL PARK, CA 95389-0042
PO BOX 43, YOSEMITE NATIONAL PARK, CA 95389-0043
PO BOX 44, YOSEMITE NATIONAL PARK, CA 95389-0044
PO BOX 45, YOSEMITE NATIONAL PARK, CA 95389-0045
PO BOX 46, YOSEMITE NATIONAL PARK, CA 95389-0046
PO BOX 47, YOSEMITE NATIONAL PARK, CA 95389-0047
PO BOX 48, YOSEMITE NATIONAL PARK, CA 95389-0048
PO BOX 49, YOSEMITE NATIONAL PARK, CA 95389-0049
PO BOX 50, YOSEMITE NATIONAL PARK, CA 95389-0050
PO BOX 51, YOSEMITE NATIONAL PARK, CA 95389-0051
PO BOX 52, YOSEMITE NATIONAL PARK, CA 95389-0052
PO BOX 53, YOSEMITE NATIONAL PARK, CA 95389-0053
PO BOX 54, YOSEMITE NATIONAL PARK, CA 95389-0054
PO BOX 55, YOSEMITE NATIONAL PARK, CA 95389-0055
PO BOX 56, YOSEMITE NATIONAL PARK, CA 95389-0056
PO BOX 57, YOSEMITE NATIONAL PARK, CA 95389-0057
PO BOX 58, YOSEMITE NATIONAL PARK, CA 95389-0058
PO BOX 59, YOSEMITE NATIONAL PARK, CA 95389-0059
PO BOX 60, YOSEMITE NATIONAL PARK, CA 95389-0060
PO BOX 61, YOSEMITE NATIONAL PARK, CA 95389-0061
PO BOX 62, YOSEMITE NATIONAL PARK, CA 95389-0062
PO BOX 63, YOSEMITE NATIONAL PARK, CA 95389-0063
PO BOX 64, YOSEMITE NATIONAL PARK, CA 95389-0064
PO BOX 65, YOSEMITE NATIONAL PARK, CA 95389-0065
PO BOX 66, YOSEMITE NATIONAL PARK, CA 95389-0066
PO BOX 67, YOSEMITE NATIONAL PARK, CA 95389-0067
PO BOX 68, YOSEMITE NATIONAL PARK, CA 95389-0068
PO BOX 69, YOSEMITE NATIONAL PARK, CA 95389-0069
PO BOX 70, YOSEMITE NATIONAL PARK, CA 95389-0070
PO BOX 71, YOSEMITE NATIONAL PARK, CA 95389-0071
PO BOX 72, YOSEMITE NATIONAL PARK, CA 95389-0072
PO BOX 73, YOSEMITE NATIONAL PARK, CA 95389-0073
PO BOX 74, YOSEMITE NATIONAL PARK, CA 95389-0074
PO BOX 75, YOSEMITE NATIONAL PARK, CA 95389-0075
PO BOX 76, YOSEMITE NATIONAL PARK, CA 95389-0076
PO BOX 77, YOSEMITE NATIONAL PARK, CA 95389-0077
PO BOX 78, YOSEMITE NATIONAL PARK, CA 95389-0078
PO BOX 79, YOSEMITE NATIONAL PARK, CA 95389-0079
PO BOX 80, YOSEMITE NATIONAL PARK, CA 95389-0080
PO BOX 81, YOSEMITE NATIONAL PARK, CA 95389-0081
PO BOX 82, YOSEMITE NATIONAL PARK, CA 95389-0082
PO BOX 83, YOSEMITE NATIONAL PARK, CA 95389-0083
PO BOX 84, YOSEMITE NATIONAL PARK, CA 95389-0084
PO BOX 85, YOSEMITE NATIONAL PARK, CA 95389-0085
PO BOX 86, YOSEMITE NATIONAL PARK, CA 95389-0086
PO BOX 87, YOSEMITE NATIONAL PARK, CA 95389-0087
PO BOX 88, YOSEMITE NATIONAL PARK, CA 95389-0088
PO BOX 89, YOSEMITE NATIONAL PARK, CA 95389-0089
PO BOX 90, YOSEMITE NATIONAL PARK, CA 95389-0090
PO BOX 91, YOSEMITE NATIONAL PARK, CA 95389-0091
PO BOX 92, YOSEMITE NATIONAL PARK, CA 95389-0092
PO BOX 93, YOSEMITE NATIONAL PARK, CA 95389-0093
PO BOX 94, YOSEMITE NATIONAL PARK, CA 95389-0094
PO BOX 95, YOSEMITE NATIONAL PARK, CA 95389-0095
PO BOX 96, YOSEMITE NATIONAL PARK, CA 95389-0096
PO BOX 97, YOSEMITE NATIONAL PARK, CA 95389-0097
PO BOX 98, YOSEMITE NATIONAL PARK, CA 95389-0098
PO BOX 99, YOSEMITE NATIONAL PARK, CA 95389-0099
PO BOX 100, YOSEMITE NATIONAL PARK, CA 95389-0100
PO BOX 101, YOSEMITE NATIONAL PARK, CA 95389-0101
PO BOX 102, YOSEMITE NATIONAL PARK, CA 95389-0102
PO BOX 103, YOSEMITE NATIONAL PARK, CA 95389-0103
PO BOX 104, YOSEMITE NATIONAL PARK, CA 95389-0104
PO BOX 105, YOSEMITE NATIONAL PARK, CA 95389-0105
PO BOX 106, YOSEMITE NATIONAL PARK, CA 95389-0106
PO BOX 107, YOSEMITE NATIONAL PARK, CA 95389-0107
PO BOX 108, YOSEMITE NATIONAL PARK, CA 95389-0108
PO BOX 109, YOSEMITE NATIONAL PARK, CA 95389-0109
PO BOX 110, YOSEMITE NATIONAL PARK, CA 95389-0110
PO BOX 111, YOSEMITE NATIONAL PARK, CA 95389-0111
PO BOX 112, YOSEMITE NATIONAL PARK, CA 95389-0112
PO BOX 113, YOSEMITE NATIONAL PARK, CA 95389-0113
PO BOX 114, YOSEMITE NATIONAL PARK, CA 95389-0114
PO BOX 115, YOSEMITE NATIONAL PARK, CA 95389-0115
PO BOX 116, YOSEMITE NATIONAL PARK, CA 95389-0116
PO BOX 117, YOSEMITE NATIONAL PARK, CA 95389-0117
PO BOX 118, YOSEMITE NATIONAL PARK, CA 95389-0118
PO BOX 119, YOSEMITE NATIONAL PARK, CA 95389-0119
PO BOX 120, YOSEMITE NATIONAL PARK, CA 95389-0120
PO BOX 121, YOSEMITE NATIONAL PARK, CA 95389-0121
PO BOX 122, YOSEMITE NATIONAL PARK, CA 95389-0122
PO BOX 123, YOSEMITE NATIONAL PARK, CA 95389-0123
PO BOX 124, YOSEMITE NATIONAL PARK, CA 95389-0124
PO BOX 125, YOSEMITE NATIONAL PARK, CA 95389-0125
PO BOX 126, YOSEMITE NATIONAL PARK, CA 95389-0126
PO BOX 127, YOSEMITE NATIONAL PARK, CA 95389-0127
PO BOX 128, YOSEMITE NATIONAL PARK, CA 95389-0128
PO BOX 129, YOSEMITE NATIONAL PARK, CA 95389-0129
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