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 5181, DAVIDSON, NC 28035-5181
PO BOX 5182, DAVIDSON, NC 28035-5182
PO BOX 5183, DAVIDSON, NC 28035-5183
PO BOX 5184, DAVIDSON, NC 28035-5184
PO BOX 5185, DAVIDSON, NC 28035-5185
PO BOX 5186, DAVIDSON, NC 28035-5186
PO BOX 5187, DAVIDSON, NC 28035-5187
PO BOX 5188, DAVIDSON, NC 28035-5188
PO BOX 5189, DAVIDSON, NC 28035-5189
PO BOX 5190, DAVIDSON, NC 28035-5190
PO BOX 5191, DAVIDSON, NC 28035-5191
PO BOX 5192, DAVIDSON, NC 28035-5192
PO BOX 5193, DAVIDSON, NC 28035-5193
PO BOX 5194, DAVIDSON, NC 28035-5194
PO BOX 5195, DAVIDSON, NC 28035-5195
PO BOX 5196, DAVIDSON, NC 28035-5196
PO BOX 5197, DAVIDSON, NC 28035-5197
PO BOX 5198, DAVIDSON, NC 28035-5198
PO BOX 5199, DAVIDSON, NC 28035-5199
PO BOX 5200, DAVIDSON, NC 28035-5200
PO BOX 5201, DAVIDSON, NC 28035-5201
PO BOX 5202, DAVIDSON, NC 28035-5202
PO BOX 5203, DAVIDSON, NC 28035-5203
PO BOX 5204, DAVIDSON, NC 28035-5204
PO BOX 5205, DAVIDSON, NC 28035-5205
PO BOX 5206, DAVIDSON, NC 28035-5206
PO BOX 5207, DAVIDSON, NC 28035-5207
PO BOX 5208, DAVIDSON, NC 28035-5208
PO BOX 5209, DAVIDSON, NC 28035-5209
PO BOX 5210, DAVIDSON, NC 28035-5210
PO BOX 5211, DAVIDSON, NC 28035-5211
PO BOX 5212, DAVIDSON, NC 28035-5212
PO BOX 5213, DAVIDSON, NC 28035-5213
PO BOX 5214, DAVIDSON, NC 28035-5214
PO BOX 5215, DAVIDSON, NC 28035-5215
PO BOX 5216, DAVIDSON, NC 28035-5216
PO BOX 5217, DAVIDSON, NC 28035-5217
PO BOX 5218, DAVIDSON, NC 28035-5218
PO BOX 5219, DAVIDSON, NC 28035-5219
PO BOX 5220, DAVIDSON, NC 28035-5220
PO BOX 5221, DAVIDSON, NC 28035-5221
PO BOX 5222, DAVIDSON, NC 28035-5222
PO BOX 5223, DAVIDSON, NC 28035-5223
PO BOX 5224, DAVIDSON, NC 28035-5224
PO BOX 5225, DAVIDSON, NC 28035-5225
PO BOX 5226, DAVIDSON, NC 28035-5226
PO BOX 5227, DAVIDSON, NC 28035-5227
PO BOX 5228, DAVIDSON, NC 28035-5228
PO BOX 5229, DAVIDSON, NC 28035-5229
PO BOX 5230, DAVIDSON, NC 28035-5230
PO BOX 5231, DAVIDSON, NC 28035-5231
PO BOX 5232, DAVIDSON, NC 28035-5232
PO BOX 5233, DAVIDSON, NC 28035-5233
PO BOX 5234, DAVIDSON, NC 28035-5234
PO BOX 5235, DAVIDSON, NC 28035-5235
PO BOX 5236, DAVIDSON, NC 28035-5236
PO BOX 5237, DAVIDSON, NC 28035-5237
PO BOX 5238, DAVIDSON, NC 28035-5238
PO BOX 5239, DAVIDSON, NC 28035-5239
PO BOX 5240, DAVIDSON, NC 28035-5240
PO BOX 5241, DAVIDSON, NC 28035-5241
PO BOX 5242, DAVIDSON, NC 28035-5242
PO BOX 5243, DAVIDSON, NC 28035-5243
PO BOX 5244, DAVIDSON, NC 28035-5244
PO BOX 5245, DAVIDSON, NC 28035-5245
PO BOX 5246, DAVIDSON, NC 28035-5246
PO BOX 5247, DAVIDSON, NC 28035-5247
PO BOX 5248, DAVIDSON, NC 28035-5248
PO BOX 5249, DAVIDSON, NC 28035-5249
PO BOX 5250, DAVIDSON, NC 28035-5250
PO BOX 5251, DAVIDSON, NC 28035-5251
PO BOX 5252, DAVIDSON, NC 28035-5252
PO BOX 5253, DAVIDSON, NC 28035-5253
PO BOX 5254, DAVIDSON, NC 28035-5254
PO BOX 5255, DAVIDSON, NC 28035-5255
PO BOX 5256, DAVIDSON, NC 28035-5256
PO BOX 5257, DAVIDSON, NC 28035-5257
PO BOX 5258, DAVIDSON, NC 28035-5258
PO BOX 5259, DAVIDSON, NC 28035-5259
PO BOX 5260, DAVIDSON, NC 28035-5260
PO BOX 5261, DAVIDSON, NC 28035-5261
PO BOX 5262, DAVIDSON, NC 28035-5262
PO BOX 5263, DAVIDSON, NC 28035-5263
PO BOX 5264, DAVIDSON, NC 28035-5264
PO BOX 5265, DAVIDSON, NC 28035-5265
PO BOX 5266, DAVIDSON, NC 28035-5266
PO BOX 5267, DAVIDSON, NC 28035-5267
PO BOX 5268, DAVIDSON, NC 28035-5268
PO BOX 5269, DAVIDSON, NC 28035-5269
PO BOX 5270, DAVIDSON, NC 28035-5270
PO BOX 5271, DAVIDSON, NC 28035-5271
PO BOX 5272, DAVIDSON, NC 28035-5272
PO BOX 5273, DAVIDSON, NC 28035-5273
PO BOX 5274, DAVIDSON, NC 28035-5274
PO BOX 5275, DAVIDSON, NC 28035-5275
PO BOX 5276, DAVIDSON, NC 28035-5276
PO BOX 5277, DAVIDSON, NC 28035-5277
PO BOX 5278, DAVIDSON, NC 28035-5278
PO BOX 5279, DAVIDSON, NC 28035-5279
PO BOX 5280, DAVIDSON, NC 28035-5280
PO BOX 5281, DAVIDSON, NC 28035-5281
PO BOX 5282, DAVIDSON, NC 28035-5282
PO BOX 5283, DAVIDSON, NC 28035-5283
PO BOX 5284, DAVIDSON, NC 28035-5284
PO BOX 5285, DAVIDSON, NC 28035-5285
PO BOX 5286, DAVIDSON, NC 28035-5286
PO BOX 5287, DAVIDSON, NC 28035-5287
PO BOX 5288, DAVIDSON, NC 28035-5288
PO BOX 5289, DAVIDSON, NC 28035-5289
PO BOX 5290, DAVIDSON, NC 28035-5290
PO BOX 5291, DAVIDSON, NC 28035-5291
PO BOX 5292, DAVIDSON, NC 28035-5292
PO BOX 5293, DAVIDSON, NC 28035-5293
PO BOX 5294, DAVIDSON, NC 28035-5294
PO BOX 5295, DAVIDSON, NC 28035-5295
PO BOX 5296, DAVIDSON, NC 28035-5296
PO BOX 5297, DAVIDSON, NC 28035-5297
PO BOX 5298, DAVIDSON, NC 28035-5298
PO BOX 5299, DAVIDSON, NC 28035-5299
PO BOX 5300, DAVIDSON, NC 28035-5300
PO BOX 5301, DAVIDSON, NC 28035-5301
PO BOX 5302, DAVIDSON, NC 28035-5302
PO BOX 5303, DAVIDSON, NC 28035-5303
PO BOX 5304, DAVIDSON, NC 28035-5304
PO BOX 5305, DAVIDSON, NC 28035-5305
PO BOX 5306, DAVIDSON, NC 28035-5306
PO BOX 5307, DAVIDSON, NC 28035-5307
PO BOX 5308, DAVIDSON, NC 28035-5308
PO BOX 5309, DAVIDSON, NC 28035-5309
PO BOX 5310, DAVIDSON, NC 28035-5310
PO BOX 5311, DAVIDSON, NC 28035-5311
PO BOX 5312, DAVIDSON, NC 28035-5312
PO BOX 5313, DAVIDSON, NC 28035-5313
PO BOX 5314, DAVIDSON, NC 28035-5314
PO BOX 5315, DAVIDSON, NC 28035-5315
PO BOX 5316, DAVIDSON, NC 28035-5316
PO BOX 5317, DAVIDSON, NC 28035-5317
PO BOX 5318, DAVIDSON, NC 28035-5318
PO BOX 5319, DAVIDSON, NC 28035-5319
PO BOX 5320, DAVIDSON, NC 28035-5320
PO BOX 5321, DAVIDSON, NC 28035-5321
PO BOX 5322, DAVIDSON, NC 28035-5322
PO BOX 5323, DAVIDSON, NC 28035-5323
PO BOX 5324, DAVIDSON, NC 28035-5324
PO BOX 5325, DAVIDSON, NC 28035-5325
PO BOX 5326, DAVIDSON, NC 28035-5326
PO BOX 5327, DAVIDSON, NC 28035-5327
PO BOX 5328, DAVIDSON, NC 28035-5328
PO BOX 5329, DAVIDSON, NC 28035-5329
PO BOX 5330, DAVIDSON, NC 28035-5330
PO BOX 5331, DAVIDSON, NC 28035-5331
PO BOX 5332, DAVIDSON, NC 28035-5332
PO BOX 5333, DAVIDSON, NC 28035-5333
PO BOX 5334, DAVIDSON, NC 28035-5334
PO BOX 5335, DAVIDSON, NC 28035-5335
PO BOX 5336, DAVIDSON, NC 28035-5336
PO BOX 5337, DAVIDSON, NC 28035-5337
PO BOX 5338, DAVIDSON, NC 28035-5338
PO BOX 5339, DAVIDSON, NC 28035-5339
PO BOX 5340, DAVIDSON, NC 28035-5340
PO BOX 5341, DAVIDSON, NC 28035-5341
PO BOX 5342, DAVIDSON, NC 28035-5342
PO BOX 5343, DAVIDSON, NC 28035-5343
PO BOX 5344, DAVIDSON, NC 28035-5344
PO BOX 5345, DAVIDSON, NC 28035-5345
PO BOX 5346, DAVIDSON, NC 28035-5346
PO BOX 5347, DAVIDSON, NC 28035-5347
PO BOX 5348, DAVIDSON, NC 28035-5348
PO BOX 5349, DAVIDSON, NC 28035-5349
PO BOX 5350, DAVIDSON, NC 28035-5350
PO BOX 5351, DAVIDSON, NC 28035-5351
PO BOX 5352, DAVIDSON, NC 28035-5352
PO BOX 5353, DAVIDSON, NC 28035-5353
PO BOX 5354, DAVIDSON, NC 28035-5354
PO BOX 5355, DAVIDSON, NC 28035-5355
PO BOX 5356, DAVIDSON, NC 28035-5356
PO BOX 5357, DAVIDSON, NC 28035-5357
PO BOX 5358, DAVIDSON, NC 28035-5358
PO BOX 5359, DAVIDSON, NC 28035-5359
PO BOX 5360, DAVIDSON, NC 28035-5360
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