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 5001, BURLINGTON, VT 05402-5001
PO BOX 5002, BURLINGTON, VT 05402-5002
PO BOX 5003, BURLINGTON, VT 05402-5003
PO BOX 5004, BURLINGTON, VT 05402-5004
PO BOX 5005, BURLINGTON, VT 05402-5005
PO BOX 5006, BURLINGTON, VT 05402-5006
PO BOX 5007, BURLINGTON, VT 05402-5007
PO BOX 5008, BURLINGTON, VT 05402-5008
PO BOX 5009, BURLINGTON, VT 05402-5009
PO BOX 5010, BURLINGTON, VT 05402-5010
PO BOX 5011, BURLINGTON, VT 05402-5011
PO BOX 5012, BURLINGTON, VT 05402-5012
PO BOX 5013, BURLINGTON, VT 05402-5013
PO BOX 5014, BURLINGTON, VT 05402-5014
PO BOX 5015, BURLINGTON, VT 05402-5015
PO BOX 5016, BURLINGTON, VT 05402-5016
PO BOX 5017, BURLINGTON, VT 05402-5017
PO BOX 5018, BURLINGTON, VT 05402-5018
PO BOX 5019, BURLINGTON, VT 05402-5019
PO BOX 5020, BURLINGTON, VT 05402-5020
PO BOX 5021, BURLINGTON, VT 05402-5021
PO BOX 5022, BURLINGTON, VT 05402-5022
PO BOX 5023, BURLINGTON, VT 05402-5023
PO BOX 5024, BURLINGTON, VT 05402-5024
PO BOX 5025, BURLINGTON, VT 05402-5025
PO BOX 5026, BURLINGTON, VT 05402-5026
PO BOX 5027, BURLINGTON, VT 05402-5027
PO BOX 5028, BURLINGTON, VT 05402-5028
PO BOX 5029, BURLINGTON, VT 05402-5029
PO BOX 5030, BURLINGTON, VT 05402-5030
PO BOX 5031, BURLINGTON, VT 05402-5031
PO BOX 5032, BURLINGTON, VT 05402-5032
PO BOX 5033, BURLINGTON, VT 05402-5033
PO BOX 5034, BURLINGTON, VT 05402-5034
PO BOX 5035, BURLINGTON, VT 05402-5035
PO BOX 5036, BURLINGTON, VT 05402-5036
PO BOX 5037, BURLINGTON, VT 05402-5037
PO BOX 5038, BURLINGTON, VT 05402-5038
PO BOX 5039, BURLINGTON, VT 05402-5039
PO BOX 5040, BURLINGTON, VT 05402-5040
PO BOX 5041, BURLINGTON, VT 05402-5041
PO BOX 5042, BURLINGTON, VT 05402-5042
PO BOX 5043, BURLINGTON, VT 05402-5043
PO BOX 5044, BURLINGTON, VT 05402-5044
PO BOX 5045, BURLINGTON, VT 05402-5045
PO BOX 5046, BURLINGTON, VT 05402-5046
PO BOX 5047, BURLINGTON, VT 05402-5047
PO BOX 5048, BURLINGTON, VT 05402-5048
PO BOX 5049, BURLINGTON, VT 05402-5049
PO BOX 5050, BURLINGTON, VT 05402-5050
PO BOX 5051, BURLINGTON, VT 05402-5051
PO BOX 5052, BURLINGTON, VT 05402-5052
PO BOX 5053, BURLINGTON, VT 05402-5053
PO BOX 5054, BURLINGTON, VT 05402-5054
PO BOX 5055, BURLINGTON, VT 05402-5055
PO BOX 5056, BURLINGTON, VT 05402-5056
PO BOX 5057, BURLINGTON, VT 05402-5057
PO BOX 5058, BURLINGTON, VT 05402-5058
PO BOX 5059, BURLINGTON, VT 05402-5059
PO BOX 5060, BURLINGTON, VT 05402-5060
PO BOX 5061, BURLINGTON, VT 05402-5061
PO BOX 5062, BURLINGTON, VT 05402-5062
PO BOX 5063, BURLINGTON, VT 05402-5063
PO BOX 5064, BURLINGTON, VT 05402-5064
PO BOX 5065, BURLINGTON, VT 05402-5065
PO BOX 5066, BURLINGTON, VT 05402-5066
PO BOX 5067, BURLINGTON, VT 05402-5067
PO BOX 5068, BURLINGTON, VT 05402-5068
PO BOX 5069, BURLINGTON, VT 05402-5069
PO BOX 5070, BURLINGTON, VT 05402-5070
PO BOX 5071, BURLINGTON, VT 05402-5071
PO BOX 5072, BURLINGTON, VT 05402-5072
PO BOX 5073, BURLINGTON, VT 05402-5073
PO BOX 5074, BURLINGTON, VT 05402-5074
PO BOX 5075, BURLINGTON, VT 05402-5075
PO BOX 5076, BURLINGTON, VT 05402-5076
PO BOX 5077, BURLINGTON, VT 05402-5077
PO BOX 5078, BURLINGTON, VT 05402-5078
PO BOX 5079, BURLINGTON, VT 05402-5079
PO BOX 5080, BURLINGTON, VT 05402-5080
PO BOX 5081, BURLINGTON, VT 05402-5081
PO BOX 5082, BURLINGTON, VT 05402-5082
PO BOX 5083, BURLINGTON, VT 05402-5083
PO BOX 5084, BURLINGTON, VT 05402-5084
PO BOX 5085, BURLINGTON, VT 05402-5085
PO BOX 5086, BURLINGTON, VT 05402-5086
PO BOX 5087, BURLINGTON, VT 05402-5087
PO BOX 5088, BURLINGTON, VT 05402-5088
PO BOX 5089, BURLINGTON, VT 05402-5089
PO BOX 5090, BURLINGTON, VT 05402-5090
PO BOX 5091, BURLINGTON, VT 05402-5091
PO BOX 5092, BURLINGTON, VT 05402-5092
PO BOX 5093, BURLINGTON, VT 05402-5093
PO BOX 5094, BURLINGTON, VT 05402-5094
PO BOX 5095, BURLINGTON, VT 05402-5095
PO BOX 5096, BURLINGTON, VT 05402-5096
PO BOX 5097, BURLINGTON, VT 05402-5097
PO BOX 5098, BURLINGTON, VT 05402-5098
PO BOX 5099, BURLINGTON, VT 05402-5099
PO BOX 5100, BURLINGTON, VT 05402-5100
PO BOX 5101, BURLINGTON, VT 05402-5101
PO BOX 5102, BURLINGTON, VT 05402-5102
PO BOX 5103, BURLINGTON, VT 05402-5103
PO BOX 5104, BURLINGTON, VT 05402-5104
PO BOX 5105, BURLINGTON, VT 05402-5105
PO BOX 5106, BURLINGTON, VT 05402-5106
PO BOX 5107, BURLINGTON, VT 05402-5107
PO BOX 5108, BURLINGTON, VT 05402-5108
PO BOX 5109, BURLINGTON, VT 05402-5109
PO BOX 5110, BURLINGTON, VT 05402-5110
PO BOX 5111, BURLINGTON, VT 05402-5111
PO BOX 5112, BURLINGTON, VT 05402-5112
PO BOX 5113, BURLINGTON, VT 05402-5113
PO BOX 5114, BURLINGTON, VT 05402-5114
PO BOX 5115, BURLINGTON, VT 05402-5115
PO BOX 5116, BURLINGTON, VT 05402-5116
PO BOX 5117, BURLINGTON, VT 05402-5117
PO BOX 5118, BURLINGTON, VT 05402-5118
PO BOX 5119, BURLINGTON, VT 05402-5119
PO BOX 5120, BURLINGTON, VT 05402-5120
PO BOX 5121, BURLINGTON, VT 05402-5121
PO BOX 5122, BURLINGTON, VT 05402-5122
PO BOX 5123, BURLINGTON, VT 05402-5123
PO BOX 5124, BURLINGTON, VT 05402-5124
PO BOX 5125, BURLINGTON, VT 05402-5125
PO BOX 5126, BURLINGTON, VT 05402-5126
PO BOX 5127, BURLINGTON, VT 05402-5127
PO BOX 5128, BURLINGTON, VT 05402-5128
PO BOX 5129, BURLINGTON, VT 05402-5129
PO BOX 5130, BURLINGTON, VT 05402-5130
PO BOX 5131, BURLINGTON, VT 05402-5131
PO BOX 5132, BURLINGTON, VT 05402-5132
PO BOX 5133, BURLINGTON, VT 05402-5133
PO BOX 5134, BURLINGTON, VT 05402-5134
PO BOX 5135, BURLINGTON, VT 05402-5135
PO BOX 5136, BURLINGTON, VT 05402-5136
PO BOX 5137, BURLINGTON, VT 05402-5137
PO BOX 5138, BURLINGTON, VT 05402-5138
PO BOX 5139, BURLINGTON, VT 05402-5139
PO BOX 5140, BURLINGTON, VT 05402-5140
PO BOX 5141, BURLINGTON, VT 05402-5141
PO BOX 5142, BURLINGTON, VT 05402-5142
PO BOX 5143, BURLINGTON, VT 05402-5143
PO BOX 5144, BURLINGTON, VT 05402-5144
PO BOX 5145, BURLINGTON, VT 05402-5145
PO BOX 5146, BURLINGTON, VT 05402-5146
PO BOX 5147, BURLINGTON, VT 05402-5147
PO BOX 5148, BURLINGTON, VT 05402-5148
PO BOX 5149, BURLINGTON, VT 05402-5149
PO BOX 5150, BURLINGTON, VT 05402-5150
PO BOX 5151, BURLINGTON, VT 05402-5151
PO BOX 5152, BURLINGTON, VT 05402-5152
PO BOX 5153, BURLINGTON, VT 05402-5153
PO BOX 5154, BURLINGTON, VT 05402-5154
PO BOX 5155, BURLINGTON, VT 05402-5155
PO BOX 5156, BURLINGTON, VT 05402-5156
PO BOX 5157, BURLINGTON, VT 05402-5157
PO BOX 5158, BURLINGTON, VT 05402-5158
PO BOX 5159, BURLINGTON, VT 05402-5159
PO BOX 5160, BURLINGTON, VT 05402-5160
PO BOX 5161, BURLINGTON, VT 05402-5161
PO BOX 5162, BURLINGTON, VT 05402-5162
PO BOX 5163, BURLINGTON, VT 05402-5163
PO BOX 5164, BURLINGTON, VT 05402-5164
PO BOX 5165, BURLINGTON, VT 05402-5165
PO BOX 5166, BURLINGTON, VT 05402-5166
PO BOX 5167, BURLINGTON, VT 05402-5167
PO BOX 5168, BURLINGTON, VT 05402-5168
PO BOX 5169, BURLINGTON, VT 05402-5169
PO BOX 5170, BURLINGTON, VT 05402-5170
PO BOX 5171, BURLINGTON, VT 05402-5171
PO BOX 5172, BURLINGTON, VT 05402-5172
PO BOX 5173, BURLINGTON, VT 05402-5173
PO BOX 5174, BURLINGTON, VT 05402-5174
PO BOX 5175, BURLINGTON, VT 05402-5175
PO BOX 5176, BURLINGTON, VT 05402-5176
PO BOX 5177, BURLINGTON, VT 05402-5177
PO BOX 5178, BURLINGTON, VT 05402-5178
PO BOX 5179, BURLINGTON, VT 05402-5179
PO BOX 5180, BURLINGTON, VT 05402-5180
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