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, RIDGELY, MD 21660-0001
PO BOX 2, RIDGELY, MD 21660-0002
PO BOX 3, RIDGELY, MD 21660-0003
PO BOX 4, RIDGELY, MD 21660-0004
PO BOX 5, RIDGELY, MD 21660-0005
PO BOX 6, RIDGELY, MD 21660-0006
PO BOX 7, RIDGELY, MD 21660-0007
PO BOX 8, RIDGELY, MD 21660-0008
PO BOX 9, RIDGELY, MD 21660-0009
PO BOX 10, RIDGELY, MD 21660-0010
PO BOX 11, RIDGELY, MD 21660-0011
PO BOX 12, RIDGELY, MD 21660-0012
PO BOX 13, RIDGELY, MD 21660-0013
PO BOX 14, RIDGELY, MD 21660-0014
PO BOX 15, RIDGELY, MD 21660-0015
PO BOX 16, RIDGELY, MD 21660-0016
PO BOX 17, RIDGELY, MD 21660-0017
PO BOX 18, RIDGELY, MD 21660-0018
PO BOX 19, RIDGELY, MD 21660-0019
PO BOX 20, RIDGELY, MD 21660-0020
PO BOX 21, RIDGELY, MD 21660-0021
PO BOX 22, RIDGELY, MD 21660-0022
PO BOX 23, RIDGELY, MD 21660-0023
PO BOX 24, RIDGELY, MD 21660-0024
PO BOX 25, RIDGELY, MD 21660-0025
PO BOX 26, RIDGELY, MD 21660-0026
PO BOX 27, RIDGELY, MD 21660-0027
PO BOX 28, RIDGELY, MD 21660-0028
PO BOX 29, RIDGELY, MD 21660-0029
PO BOX 30, RIDGELY, MD 21660-0030
PO BOX 31, RIDGELY, MD 21660-0031
PO BOX 32, RIDGELY, MD 21660-0032
PO BOX 33, RIDGELY, MD 21660-0033
PO BOX 34, RIDGELY, MD 21660-0034
PO BOX 35, RIDGELY, MD 21660-0035
PO BOX 36, RIDGELY, MD 21660-0036
PO BOX 37, RIDGELY, MD 21660-0037
PO BOX 38, RIDGELY, MD 21660-0038
PO BOX 39, RIDGELY, MD 21660-0039
PO BOX 40, RIDGELY, MD 21660-0040
PO BOX 41, RIDGELY, MD 21660-0041
PO BOX 42, RIDGELY, MD 21660-0042
PO BOX 43, RIDGELY, MD 21660-0043
PO BOX 44, RIDGELY, MD 21660-0044
PO BOX 45, RIDGELY, MD 21660-0045
PO BOX 46, RIDGELY, MD 21660-0046
PO BOX 47, RIDGELY, MD 21660-0047
PO BOX 48, RIDGELY, MD 21660-0048
PO BOX 49, RIDGELY, MD 21660-0049
PO BOX 50, RIDGELY, MD 21660-0050
PO BOX 51, RIDGELY, MD 21660-0051
PO BOX 52, RIDGELY, MD 21660-0052
PO BOX 53, RIDGELY, MD 21660-0053
PO BOX 54, RIDGELY, MD 21660-0054
PO BOX 55, RIDGELY, MD 21660-0055
PO BOX 56, RIDGELY, MD 21660-0056
PO BOX 57, RIDGELY, MD 21660-0057
PO BOX 58, RIDGELY, MD 21660-0058
PO BOX 59, RIDGELY, MD 21660-0059
PO BOX 60, RIDGELY, MD 21660-0060
PO BOX 61, RIDGELY, MD 21660-0061
PO BOX 62, RIDGELY, MD 21660-0062
PO BOX 63, RIDGELY, MD 21660-0063
PO BOX 64, RIDGELY, MD 21660-0064
PO BOX 65, RIDGELY, MD 21660-0065
PO BOX 66, RIDGELY, MD 21660-0066
PO BOX 67, RIDGELY, MD 21660-0067
PO BOX 68, RIDGELY, MD 21660-0068
PO BOX 69, RIDGELY, MD 21660-0069
PO BOX 70, RIDGELY, MD 21660-0070
PO BOX 71, RIDGELY, MD 21660-0071
PO BOX 72, RIDGELY, MD 21660-0072
PO BOX 73, RIDGELY, MD 21660-0073
PO BOX 74, RIDGELY, MD 21660-0074
PO BOX 75, RIDGELY, MD 21660-0075
PO BOX 76, RIDGELY, MD 21660-0076
PO BOX 77, RIDGELY, MD 21660-0077
PO BOX 78, RIDGELY, MD 21660-0078
PO BOX 79, RIDGELY, MD 21660-0079
PO BOX 80, RIDGELY, MD 21660-0080
PO BOX 81, RIDGELY, MD 21660-0081
PO BOX 82, RIDGELY, MD 21660-0082
PO BOX 83, RIDGELY, MD 21660-0083
PO BOX 84, RIDGELY, MD 21660-0084
PO BOX 85, RIDGELY, MD 21660-0085
PO BOX 86, RIDGELY, MD 21660-0086
PO BOX 87, RIDGELY, MD 21660-0087
PO BOX 88, RIDGELY, MD 21660-0088
PO BOX 89, RIDGELY, MD 21660-0089
PO BOX 90, RIDGELY, MD 21660-0090
PO BOX 91, RIDGELY, MD 21660-0091
PO BOX 92, RIDGELY, MD 21660-0092
PO BOX 93, RIDGELY, MD 21660-0093
PO BOX 94, RIDGELY, MD 21660-0094
PO BOX 95, RIDGELY, MD 21660-0095
PO BOX 96, RIDGELY, MD 21660-0096
PO BOX 97, RIDGELY, MD 21660-0097
PO BOX 98, RIDGELY, MD 21660-0098
PO BOX 99, RIDGELY, MD 21660-0099
PO BOX 100, RIDGELY, MD 21660-0100
PO BOX 101, RIDGELY, MD 21660-0101
PO BOX 102, RIDGELY, MD 21660-0102
PO BOX 103, RIDGELY, MD 21660-0103
PO BOX 104, RIDGELY, MD 21660-0104
PO BOX 105, RIDGELY, MD 21660-0105
PO BOX 106, RIDGELY, MD 21660-0106
PO BOX 107, RIDGELY, MD 21660-0107
PO BOX 108, RIDGELY, MD 21660-0108
PO BOX 109, RIDGELY, MD 21660-0109
PO BOX 110, RIDGELY, MD 21660-0110
PO BOX 111, RIDGELY, MD 21660-0111
PO BOX 112, RIDGELY, MD 21660-0112
PO BOX 113, RIDGELY, MD 21660-0113
PO BOX 114, RIDGELY, MD 21660-0114
PO BOX 115, RIDGELY, MD 21660-0115
PO BOX 116, RIDGELY, MD 21660-0116
PO BOX 117, RIDGELY, MD 21660-0117
PO BOX 118, RIDGELY, MD 21660-0118
PO BOX 119, RIDGELY, MD 21660-0119
PO BOX 120, RIDGELY, MD 21660-0120
PO BOX 121, RIDGELY, MD 21660-0121
PO BOX 122, RIDGELY, MD 21660-0122
PO BOX 123, RIDGELY, MD 21660-0123
PO BOX 124, RIDGELY, MD 21660-0124
PO BOX 125, RIDGELY, MD 21660-0125
PO BOX 126, RIDGELY, MD 21660-0126
PO BOX 127, RIDGELY, MD 21660-0127
PO BOX 128, RIDGELY, MD 21660-0128
PO BOX 129, RIDGELY, MD 21660-0129
PO BOX 130, RIDGELY, MD 21660-0130
PO BOX 131, RIDGELY, MD 21660-0131
PO BOX 132, RIDGELY, MD 21660-0132
PO BOX 133, RIDGELY, MD 21660-0133
PO BOX 134, RIDGELY, MD 21660-0134
PO BOX 135, RIDGELY, MD 21660-0135
PO BOX 136, RIDGELY, MD 21660-0136
PO BOX 137, RIDGELY, MD 21660-0137
PO BOX 138, RIDGELY, MD 21660-0138
PO BOX 139, RIDGELY, MD 21660-0139
PO BOX 140, RIDGELY, MD 21660-0140
PO BOX 141, RIDGELY, MD 21660-0141
PO BOX 142, RIDGELY, MD 21660-0142
PO BOX 143, RIDGELY, MD 21660-0143
PO BOX 144, RIDGELY, MD 21660-0144
PO BOX 145, RIDGELY, MD 21660-0145
PO BOX 146, RIDGELY, MD 21660-0146
PO BOX 147, RIDGELY, MD 21660-0147
PO BOX 148, RIDGELY, MD 21660-0148
PO BOX 149, RIDGELY, MD 21660-0149
PO BOX 150, RIDGELY, MD 21660-0150
PO BOX 151, RIDGELY, MD 21660-0151
PO BOX 152, RIDGELY, MD 21660-0152
PO BOX 153, RIDGELY, MD 21660-0153
PO BOX 154, RIDGELY, MD 21660-0154
PO BOX 155, RIDGELY, MD 21660-0155
PO BOX 156, RIDGELY, MD 21660-0156
PO BOX 157, RIDGELY, MD 21660-0157
PO BOX 158, RIDGELY, MD 21660-0158
PO BOX 159, RIDGELY, MD 21660-0159
PO BOX 160, RIDGELY, MD 21660-0160
PO BOX 161, RIDGELY, MD 21660-0161
PO BOX 162, RIDGELY, MD 21660-0162
PO BOX 163, RIDGELY, MD 21660-0163
PO BOX 164, RIDGELY, MD 21660-0164
PO BOX 165, RIDGELY, MD 21660-0165
PO BOX 166, RIDGELY, MD 21660-0166
PO BOX 167, RIDGELY, MD 21660-0167
PO BOX 168, RIDGELY, MD 21660-0168
PO BOX 169, RIDGELY, MD 21660-0169
PO BOX 170, RIDGELY, MD 21660-0170
PO BOX 171, RIDGELY, MD 21660-0171
PO BOX 172, RIDGELY, MD 21660-0172
PO BOX 173, RIDGELY, MD 21660-0173
PO BOX 174, RIDGELY, MD 21660-0174
PO BOX 175, RIDGELY, MD 21660-0175
PO BOX 176, RIDGELY, MD 21660-0176
PO BOX 177, RIDGELY, MD 21660-0177
PO BOX 178, RIDGELY, MD 21660-0178
PO BOX 179, RIDGELY, MD 21660-0179
PO BOX 180, RIDGELY, MD 21660-0180
Add new comment