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 141, SHEBOYGAN, WI 53082-0141
PO BOX 142, SHEBOYGAN, WI 53082-0142
PO BOX 143, SHEBOYGAN, WI 53082-0143
PO BOX 144, SHEBOYGAN, WI 53082-0144
PO BOX 145, SHEBOYGAN, WI 53082-0145
PO BOX 146, SHEBOYGAN, WI 53082-0146
PO BOX 147, SHEBOYGAN, WI 53082-0147
PO BOX 148, SHEBOYGAN, WI 53082-0148
PO BOX 149, SHEBOYGAN, WI 53082-0149
PO BOX 150, SHEBOYGAN, WI 53082-0150
PO BOX 151, SHEBOYGAN, WI 53082-0151
PO BOX 152, SHEBOYGAN, WI 53082-0152
PO BOX 153, SHEBOYGAN, WI 53082-0153
PO BOX 154, SHEBOYGAN, WI 53082-0154
PO BOX 155, SHEBOYGAN, WI 53082-0155
PO BOX 156, SHEBOYGAN, WI 53082-0156
PO BOX 157, SHEBOYGAN, WI 53082-0157
PO BOX 158, SHEBOYGAN, WI 53082-0158
PO BOX 159, SHEBOYGAN, WI 53082-0159
PO BOX 160, SHEBOYGAN, WI 53082-0160
PO BOX 161, SHEBOYGAN, WI 53082-0161
PO BOX 162, SHEBOYGAN, WI 53082-0162
PO BOX 163, SHEBOYGAN, WI 53082-0163
PO BOX 164, SHEBOYGAN, WI 53082-0164
PO BOX 165, SHEBOYGAN, WI 53082-0165
PO BOX 166, SHEBOYGAN, WI 53082-0166
PO BOX 167, SHEBOYGAN, WI 53082-0167
PO BOX 168, SHEBOYGAN, WI 53082-0168
PO BOX 169, SHEBOYGAN, WI 53082-0169
PO BOX 170, SHEBOYGAN, WI 53082-0170
PO BOX 171, SHEBOYGAN, WI 53082-0171
PO BOX 172, SHEBOYGAN, WI 53082-0172
PO BOX 173, SHEBOYGAN, WI 53082-0173
PO BOX 174, SHEBOYGAN, WI 53082-0174
PO BOX 175, SHEBOYGAN, WI 53082-0175
PO BOX 176, SHEBOYGAN, WI 53082-0176
PO BOX 177, SHEBOYGAN, WI 53082-0177
PO BOX 178, SHEBOYGAN, WI 53082-0178
PO BOX 179, SHEBOYGAN, WI 53082-0179
PO BOX 180, SHEBOYGAN, WI 53082-0180
PO BOX 181, SHEBOYGAN, WI 53082-0181
PO BOX 182, SHEBOYGAN, WI 53082-0182
PO BOX 183, SHEBOYGAN, WI 53082-0183
PO BOX 184, SHEBOYGAN, WI 53082-0184
PO BOX 185, SHEBOYGAN, WI 53082-0185
PO BOX 186, SHEBOYGAN, WI 53082-0186
PO BOX 187, SHEBOYGAN, WI 53082-0187
PO BOX 188, SHEBOYGAN, WI 53082-0188
PO BOX 189, SHEBOYGAN, WI 53082-0189
PO BOX 190, SHEBOYGAN, WI 53082-0190
PO BOX 191, SHEBOYGAN, WI 53082-0191
PO BOX 192, SHEBOYGAN, WI 53082-0192
PO BOX 193, SHEBOYGAN, WI 53082-0193
PO BOX 194, SHEBOYGAN, WI 53082-0194
PO BOX 195, SHEBOYGAN, WI 53082-0195
PO BOX 196, SHEBOYGAN, WI 53082-0196
PO BOX 197, SHEBOYGAN, WI 53082-0197
PO BOX 198, SHEBOYGAN, WI 53082-0198
PO BOX 199, SHEBOYGAN, WI 53082-0199
PO BOX 200, SHEBOYGAN, WI 53082-0200
PO BOX 201, SHEBOYGAN, WI 53082-0201
PO BOX 202, SHEBOYGAN, WI 53082-0202
PO BOX 203, SHEBOYGAN, WI 53082-0203
PO BOX 204, SHEBOYGAN, WI 53082-0204
PO BOX 205, SHEBOYGAN, WI 53082-0205
PO BOX 206, SHEBOYGAN, WI 53082-0206
PO BOX 207, SHEBOYGAN, WI 53082-0207
PO BOX 208, SHEBOYGAN, WI 53082-0208
PO BOX 209, SHEBOYGAN, WI 53082-0209
PO BOX 210, SHEBOYGAN, WI 53082-0210
PO BOX 211, SHEBOYGAN, WI 53082-0211
PO BOX 212, SHEBOYGAN, WI 53082-0212
PO BOX 213, SHEBOYGAN, WI 53082-0213
PO BOX 214, SHEBOYGAN, WI 53082-0214
PO BOX 215, SHEBOYGAN, WI 53082-0215
PO BOX 216, SHEBOYGAN, WI 53082-0216
PO BOX 217, SHEBOYGAN, WI 53082-0217
PO BOX 218, SHEBOYGAN, WI 53082-0218
PO BOX 219, SHEBOYGAN, WI 53082-0219
PO BOX 220, SHEBOYGAN, WI 53082-0220
PO BOX 221, SHEBOYGAN, WI 53082-0221
PO BOX 222, SHEBOYGAN, WI 53082-0222
PO BOX 223, SHEBOYGAN, WI 53082-0223
PO BOX 224, SHEBOYGAN, WI 53082-0224
PO BOX 225, SHEBOYGAN, WI 53082-0225
PO BOX 226, SHEBOYGAN, WI 53082-0226
PO BOX 227, SHEBOYGAN, WI 53082-0227
PO BOX 228, SHEBOYGAN, WI 53082-0228
PO BOX 229, SHEBOYGAN, WI 53082-0229
PO BOX 230, SHEBOYGAN, WI 53082-0230
PO BOX 231, SHEBOYGAN, WI 53082-0231
PO BOX 232, SHEBOYGAN, WI 53082-0232
PO BOX 233, SHEBOYGAN, WI 53082-0233
PO BOX 234, SHEBOYGAN, WI 53082-0234
PO BOX 235, SHEBOYGAN, WI 53082-0235
PO BOX 236, SHEBOYGAN, WI 53082-0236
PO BOX 237, SHEBOYGAN, WI 53082-0237
PO BOX 238, SHEBOYGAN, WI 53082-0238
PO BOX 239, SHEBOYGAN, WI 53082-0239
PO BOX 240, SHEBOYGAN, WI 53082-0240
PO BOX 241, SHEBOYGAN, WI 53082-0241
PO BOX 242, SHEBOYGAN, WI 53082-0242
PO BOX 243, SHEBOYGAN, WI 53082-0243
PO BOX 244, SHEBOYGAN, WI 53082-0244
PO BOX 245, SHEBOYGAN, WI 53082-0245
PO BOX 246, SHEBOYGAN, WI 53082-0246
PO BOX 247, SHEBOYGAN, WI 53082-0247
PO BOX 248, SHEBOYGAN, WI 53082-0248
PO BOX 249, SHEBOYGAN, WI 53082-0249
PO BOX 250, SHEBOYGAN, WI 53082-0250
PO BOX 251, SHEBOYGAN, WI 53082-0251
PO BOX 252, SHEBOYGAN, WI 53082-0252
PO BOX 253, SHEBOYGAN, WI 53082-0253
PO BOX 254, SHEBOYGAN, WI 53082-0254
PO BOX 255, SHEBOYGAN, WI 53082-0255
PO BOX 256, SHEBOYGAN, WI 53082-0256
PO BOX 257, SHEBOYGAN, WI 53082-0257
PO BOX 258, SHEBOYGAN, WI 53082-0258
PO BOX 259, SHEBOYGAN, WI 53082-0259
PO BOX 260, SHEBOYGAN, WI 53082-0260
PO BOX 261, SHEBOYGAN, WI 53082-0261
PO BOX 262, SHEBOYGAN, WI 53082-0262
PO BOX 263, SHEBOYGAN, WI 53082-0263
PO BOX 264, SHEBOYGAN, WI 53082-0264
PO BOX 265, SHEBOYGAN, WI 53082-0265
PO BOX 266, SHEBOYGAN, WI 53082-0266
PO BOX 267, SHEBOYGAN, WI 53082-0267
PO BOX 268, SHEBOYGAN, WI 53082-0268
PO BOX 269, SHEBOYGAN, WI 53082-0269
PO BOX 270, SHEBOYGAN, WI 53082-0270
PO BOX 271, SHEBOYGAN, WI 53082-0271
PO BOX 272, SHEBOYGAN, WI 53082-0272
PO BOX 273, SHEBOYGAN, WI 53082-0273
PO BOX 274, SHEBOYGAN, WI 53082-0274
PO BOX 275, SHEBOYGAN, WI 53082-0275
PO BOX 276, SHEBOYGAN, WI 53082-0276
PO BOX 277, SHEBOYGAN, WI 53082-0277
PO BOX 278, SHEBOYGAN, WI 53082-0278
PO BOX 279, SHEBOYGAN, WI 53082-0279
PO BOX 280, SHEBOYGAN, WI 53082-0280
PO BOX 281, SHEBOYGAN, WI 53082-0281
PO BOX 282, SHEBOYGAN, WI 53082-0282
PO BOX 283, SHEBOYGAN, WI 53082-0283
PO BOX 284, SHEBOYGAN, WI 53082-0284
PO BOX 285, SHEBOYGAN, WI 53082-0285
PO BOX 286, SHEBOYGAN, WI 53082-0286
PO BOX 287, SHEBOYGAN, WI 53082-0287
PO BOX 288, SHEBOYGAN, WI 53082-0288
PO BOX 289, SHEBOYGAN, WI 53082-0289
PO BOX 290, SHEBOYGAN, WI 53082-0290
PO BOX 291, SHEBOYGAN, WI 53082-0291
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