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 4015, BERKELEY, CA 94704-0015
PO BOX 4016, BERKELEY, CA 94704-0016
PO BOX 4017, BERKELEY, CA 94704-0017
PO BOX 4018, BERKELEY, CA 94704-0018
PO BOX 4019, BERKELEY, CA 94704-0019
PO BOX 4020, BERKELEY, CA 94704-0020
PO BOX 4021, BERKELEY, CA 94704-0021
PO BOX 4022, BERKELEY, CA 94704-0022
PO BOX 4023, BERKELEY, CA 94704-0023
PO BOX 4024, BERKELEY, CA 94704-0024
PO BOX 4025, BERKELEY, CA 94704-0025
PO BOX 4026, BERKELEY, CA 94704-0026
PO BOX 4027, BERKELEY, CA 94704-0027
PO BOX 4028, BERKELEY, CA 94704-0028
PO BOX 4029, BERKELEY, CA 94704-0029
PO BOX 4030, BERKELEY, CA 94704-0030
PO BOX 4031, BERKELEY, CA 94704-0031
PO BOX 4032, BERKELEY, CA 94704-0032
PO BOX 4033, BERKELEY, CA 94704-0033
PO BOX 4034, BERKELEY, CA 94704-0034
PO BOX 4035, BERKELEY, CA 94704-0035
PO BOX 4036, BERKELEY, CA 94704-0036
PO BOX 4037, BERKELEY, CA 94704-0037
PO BOX 4038, BERKELEY, CA 94704-0038
PO BOX 4039, BERKELEY, CA 94704-0039
PO BOX 4040, BERKELEY, CA 94704-0040
PO BOX 4041, BERKELEY, CA 94704-0041
PO BOX 4042, BERKELEY, CA 94704-0042
PO BOX 4043, BERKELEY, CA 94704-0043
PO BOX 4044, BERKELEY, CA 94704-0044
PO BOX 4045, BERKELEY, CA 94704-0045
PO BOX 4046, BERKELEY, CA 94704-0046
PO BOX 4047, BERKELEY, CA 94704-0047
PO BOX 4048, BERKELEY, CA 94704-0048
PO BOX 4049, BERKELEY, CA 94704-0049
PO BOX 4050, BERKELEY, CA 94704-0050
PO BOX 4051, BERKELEY, CA 94704-0051
PO BOX 4052, BERKELEY, CA 94704-0052
PO BOX 4053, BERKELEY, CA 94704-0053
PO BOX 4054, BERKELEY, CA 94704-0054
PO BOX 4055, BERKELEY, CA 94704-0055
PO BOX 4056, BERKELEY, CA 94704-0056
PO BOX 4057, BERKELEY, CA 94704-0057
PO BOX 4058, BERKELEY, CA 94704-0058
PO BOX 4059, BERKELEY, CA 94704-0059
PO BOX 4060, BERKELEY, CA 94704-0060
PO BOX 4061, BERKELEY, CA 94704-0061
PO BOX 4062, BERKELEY, CA 94704-0062
PO BOX 4063, BERKELEY, CA 94704-0063
PO BOX 4064, BERKELEY, CA 94704-0064
PO BOX 4065, BERKELEY, CA 94704-0065
PO BOX 4066, BERKELEY, CA 94704-0066
PO BOX 4067, BERKELEY, CA 94704-0067
PO BOX 4068, BERKELEY, CA 94704-0068
PO BOX 4069, BERKELEY, CA 94704-0069
PO BOX 4070, BERKELEY, CA 94704-0070
PO BOX 4071, BERKELEY, CA 94704-0071
PO BOX 4072, BERKELEY, CA 94704-0072
PO BOX 4073, BERKELEY, CA 94704-0073
PO BOX 4074, BERKELEY, CA 94704-0074
PO BOX 4075, BERKELEY, CA 94704-0075
PO BOX 4076, BERKELEY, CA 94704-0076
PO BOX 4077, BERKELEY, CA 94704-0077
PO BOX 4078, BERKELEY, CA 94704-0078
PO BOX 4079, BERKELEY, CA 94704-0079
PO BOX 4080, BERKELEY, CA 94704-0080
PO BOX 4081, BERKELEY, CA 94704-0081
PO BOX 4082, BERKELEY, CA 94704-0082
PO BOX 4083, BERKELEY, CA 94704-0083
PO BOX 4084, BERKELEY, CA 94704-0084
PO BOX 4085, BERKELEY, CA 94704-0085
PO BOX 4086, BERKELEY, CA 94704-0086
PO BOX 4087, BERKELEY, CA 94704-0087
PO BOX 4088, BERKELEY, CA 94704-0088
PO BOX 4089, BERKELEY, CA 94704-0089
PO BOX 4090, BERKELEY, CA 94704-0090
PO BOX 4091, BERKELEY, CA 94704-0091
PO BOX 4092, BERKELEY, CA 94704-0092
PO BOX 4093, BERKELEY, CA 94704-0093
PO BOX 4094, BERKELEY, CA 94704-0094
PO BOX 4095, BERKELEY, CA 94704-0095
PO BOX 4096, BERKELEY, CA 94704-0096
PO BOX 4097, BERKELEY, CA 94704-0097
PO BOX 4098, BERKELEY, CA 94704-0098
PO BOX 4099, BERKELEY, CA 94704-0099
PO BOX 4100, BERKELEY, CA 94704-0100
PO BOX 4101, BERKELEY, CA 94704-0101
PO BOX 4102, BERKELEY, CA 94704-0102
PO BOX 4103, BERKELEY, CA 94704-0103
PO BOX 4104, BERKELEY, CA 94704-0104
PO BOX 4105, BERKELEY, CA 94704-0105
PO BOX 4106, BERKELEY, CA 94704-0106
PO BOX 4107, BERKELEY, CA 94704-0107
PO BOX 4108, BERKELEY, CA 94704-0108
PO BOX 4109, BERKELEY, CA 94704-0109
PO BOX 4110, BERKELEY, CA 94704-0110
PO BOX 4111, BERKELEY, CA 94704-0111
PO BOX 4112, BERKELEY, CA 94704-0112
PO BOX 4113, BERKELEY, CA 94704-0113
PO BOX 4114, BERKELEY, CA 94704-0114
PO BOX 4115, BERKELEY, CA 94704-0115
PO BOX 4116, BERKELEY, CA 94704-0116
PO BOX 4117, BERKELEY, CA 94704-0117
PO BOX 4118, BERKELEY, CA 94704-0118
PO BOX 4119, BERKELEY, CA 94704-0119
PO BOX 4120, BERKELEY, CA 94704-0120
PO BOX 4121, BERKELEY, CA 94704-0121
PO BOX 4122, BERKELEY, CA 94704-0122
PO BOX 4123, BERKELEY, CA 94704-0123
PO BOX 4124, BERKELEY, CA 94704-0124
PO BOX 4125, BERKELEY, CA 94704-0125
PO BOX 4126, BERKELEY, CA 94704-0126
PO BOX 4127, BERKELEY, CA 94704-0127
PO BOX 4128, BERKELEY, CA 94704-0128
PO BOX 4129, BERKELEY, CA 94704-0129
PO BOX 4130, BERKELEY, CA 94704-0130
PO BOX 4131, BERKELEY, CA 94704-0131
PO BOX 4132, BERKELEY, CA 94704-0132
PO BOX 4133, BERKELEY, CA 94704-0133
PO BOX 4134, BERKELEY, CA 94704-0134
PO BOX 4135, BERKELEY, CA 94704-0135
PO BOX 4136, BERKELEY, CA 94704-0136
PO BOX 4137, BERKELEY, CA 94704-0137
PO BOX 4138, BERKELEY, CA 94704-0138
PO BOX 4139, BERKELEY, CA 94704-0139
PO BOX 4140, BERKELEY, CA 94704-0140
PO BOX 4141, BERKELEY, CA 94704-0141
PO BOX 4142, BERKELEY, CA 94704-0142
PO BOX 4143, BERKELEY, CA 94704-0143
PO BOX 4144, BERKELEY, CA 94704-0144
PO BOX 4145, BERKELEY, CA 94704-0145
PO BOX 4146, BERKELEY, CA 94704-0146
PO BOX 4147, BERKELEY, CA 94704-0147
PO BOX 4148, BERKELEY, CA 94704-0148
PO BOX 4149, BERKELEY, CA 94704-0149
PO BOX 4150, BERKELEY, CA 94704-0150
PO BOX 4151, BERKELEY, CA 94704-0151
PO BOX 4152, BERKELEY, CA 94704-0152
PO BOX 4153, BERKELEY, CA 94704-0153
PO BOX 4154, BERKELEY, CA 94704-0154
PO BOX 4155, BERKELEY, CA 94704-0155
PO BOX 4156, BERKELEY, CA 94704-0156
PO BOX 4157, BERKELEY, CA 94704-0157
PO BOX 4158, BERKELEY, CA 94704-0158
PO BOX 4159, BERKELEY, CA 94704-0159
PO BOX 4160, BERKELEY, CA 94704-0160
PO BOX 4161, BERKELEY, CA 94704-0161
PO BOX 4162, BERKELEY, CA 94704-0162
PO BOX 4163, BERKELEY, CA 94704-0163
PO BOX 4164, BERKELEY, CA 94704-0164
PO BOX 4165, BERKELEY, CA 94704-0165
PO BOX 4166, BERKELEY, CA 94704-0166
PO BOX 4167, BERKELEY, CA 94704-0167
PO BOX 4168, BERKELEY, CA 94704-0168
PO BOX 4169, BERKELEY, CA 94704-0169
PO BOX 4170, BERKELEY, CA 94704-0170
PO BOX 4171, BERKELEY, CA 94704-0171
PO BOX 4172, BERKELEY, CA 94704-0172
PO BOX 4173, BERKELEY, CA 94704-0173
PO BOX 4174, BERKELEY, CA 94704-0174
PO BOX 4175, BERKELEY, CA 94704-0175
PO BOX 4176, BERKELEY, CA 94704-0176
PO BOX 4177, BERKELEY, CA 94704-0177
PO BOX 4178, BERKELEY, CA 94704-0178
PO BOX 4179, BERKELEY, CA 94704-0179
PO BOX 4180, BERKELEY, CA 94704-0180
PO BOX 4181, BERKELEY, CA 94704-0181
PO BOX 4182, BERKELEY, CA 94704-0182
PO BOX 4183, BERKELEY, CA 94704-0183
PO BOX 4184, BERKELEY, CA 94704-0184
PO BOX 4185, BERKELEY, CA 94704-0185
PO BOX 4186, BERKELEY, CA 94704-0186
PO BOX 4187, BERKELEY, CA 94704-0187
PO BOX 4188, BERKELEY, CA 94704-0188
PO BOX 4189, BERKELEY, CA 94704-0189
PO BOX 4190, BERKELEY, CA 94704-0190
PO BOX 4191, BERKELEY, CA 94704-0191
PO BOX 4192, BERKELEY, CA 94704-0192
PO BOX 4193, BERKELEY, CA 94704-0193
PO BOX 4194, BERKELEY, CA 94704-0194
PO BOX 4195, BERKELEY, CA 94704-0195
PO BOX 4196, BERKELEY, CA 94704-0196
PO BOX 4197, BERKELEY, CA 94704-0197
PO BOX 4198, BERKELEY, CA 94704-0198
PO BOX 4199, BERKELEY, CA 94704-0199
PO BOX 4200, BERKELEY, CA 94704-0200
PO BOX 4201, BERKELEY, CA 94704-0201
PO BOX 4202, BERKELEY, CA 94704-0202
PO BOX 4203, BERKELEY, CA 94704-0203
PO BOX 4204, BERKELEY, CA 94704-0204
PO BOX 4205, BERKELEY, CA 94704-0205
PO BOX 4206, BERKELEY, CA 94704-0206
PO BOX 4207, BERKELEY, CA 94704-0207
PO BOX 4208, BERKELEY, CA 94704-0208
PO BOX 4209, BERKELEY, CA 94704-0209
PO BOX 4210, BERKELEY, CA 94704-0210
PO BOX 4211, BERKELEY, CA 94704-0211
PO BOX 4212, BERKELEY, CA 94704-0212
PO BOX 4213, BERKELEY, CA 94704-0213
PO BOX 4214, BERKELEY, CA 94704-0214
PO BOX 4215, BERKELEY, CA 94704-0215