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 270100, ROCHESTER, NY 14627-0100
PO BOX 270101, ROCHESTER, NY 14627-0101
PO BOX 270102, ROCHESTER, NY 14627-0102
PO BOX 270103, ROCHESTER, NY 14627-0103
PO BOX 270104, ROCHESTER, NY 14627-0104
PO BOX 270105, ROCHESTER, NY 14627-0105
PO BOX 270106, ROCHESTER, NY 14627-0106
PO BOX 270107, ROCHESTER, NY 14627-0107
PO BOX 270108, ROCHESTER, NY 14627-0108
PO BOX 270109, ROCHESTER, NY 14627-0109
PO BOX 270110, ROCHESTER, NY 14627-0110
PO BOX 270111, ROCHESTER, NY 14627-0111
PO BOX 270112, ROCHESTER, NY 14627-0112
PO BOX 270113, ROCHESTER, NY 14627-0113
PO BOX 270114, ROCHESTER, NY 14627-0114
PO BOX 270115, ROCHESTER, NY 14627-0115
PO BOX 270116, ROCHESTER, NY 14627-0116
PO BOX 270117, ROCHESTER, NY 14627-0117
PO BOX 270118, ROCHESTER, NY 14627-0118
PO BOX 270119, ROCHESTER, NY 14627-0119
PO BOX 270120, ROCHESTER, NY 14627-0120
PO BOX 270121, ROCHESTER, NY 14627-0121
PO BOX 270122, ROCHESTER, NY 14627-0122
PO BOX 270123, ROCHESTER, NY 14627-0123
PO BOX 270124, ROCHESTER, NY 14627-0124
PO BOX 270125, ROCHESTER, NY 14627-0125
PO BOX 270126, ROCHESTER, NY 14627-0126
PO BOX 270127, ROCHESTER, NY 14627-0127
PO BOX 270128, ROCHESTER, NY 14627-0128
PO BOX 270129, ROCHESTER, NY 14627-0129
PO BOX 270130, ROCHESTER, NY 14627-0130
PO BOX 270131, ROCHESTER, NY 14627-0131
PO BOX 270132, ROCHESTER, NY 14627-0132
PO BOX 270133, ROCHESTER, NY 14627-0133
PO BOX 270134, ROCHESTER, NY 14627-0134
PO BOX 270135, ROCHESTER, NY 14627-0135
PO BOX 270136, ROCHESTER, NY 14627-0136
PO BOX 270137, ROCHESTER, NY 14627-0137
PO BOX 270138, ROCHESTER, NY 14627-0138
PO BOX 270139, ROCHESTER, NY 14627-0139
PO BOX 270140, ROCHESTER, NY 14627-0140
PO BOX 270141, ROCHESTER, NY 14627-0141
PO BOX 270142, ROCHESTER, NY 14627-0142
PO BOX 270143, ROCHESTER, NY 14627-0143
PO BOX 270144, ROCHESTER, NY 14627-0144
PO BOX 270145, ROCHESTER, NY 14627-0145
PO BOX 270146, ROCHESTER, NY 14627-0146
PO BOX 270147, ROCHESTER, NY 14627-0147
PO BOX 270148, ROCHESTER, NY 14627-0148
PO BOX 270149, ROCHESTER, NY 14627-0149
PO BOX 270150, ROCHESTER, NY 14627-0150
PO BOX 270151, ROCHESTER, NY 14627-0151
PO BOX 270152, ROCHESTER, NY 14627-0152
PO BOX 270153, ROCHESTER, NY 14627-0153
PO BOX 270154, ROCHESTER, NY 14627-0154
PO BOX 270155, ROCHESTER, NY 14627-0155
PO BOX 270156, ROCHESTER, NY 14627-0156
PO BOX 270157, ROCHESTER, NY 14627-0157
PO BOX 270158, ROCHESTER, NY 14627-0158
PO BOX 270159, ROCHESTER, NY 14627-0159
PO BOX 270160, ROCHESTER, NY 14627-0160
PO BOX 270161, ROCHESTER, NY 14627-0161
PO BOX 270162, ROCHESTER, NY 14627-0162
PO BOX 270163, ROCHESTER, NY 14627-0163
PO BOX 270164, ROCHESTER, NY 14627-0164
PO BOX 270165, ROCHESTER, NY 14627-0165
PO BOX 270166, ROCHESTER, NY 14627-0166
PO BOX 270167, ROCHESTER, NY 14627-0167
PO BOX 270168, ROCHESTER, NY 14627-0168
PO BOX 270169, ROCHESTER, NY 14627-0169
PO BOX 270170, ROCHESTER, NY 14627-0170
PO BOX 270171, ROCHESTER, NY 14627-0171
PO BOX 270172, ROCHESTER, NY 14627-0172
PO BOX 270173, ROCHESTER, NY 14627-0173
PO BOX 270174, ROCHESTER, NY 14627-0174
PO BOX 270175, ROCHESTER, NY 14627-0175
PO BOX 270176, ROCHESTER, NY 14627-0176
PO BOX 270177, ROCHESTER, NY 14627-0177
PO BOX 270178, ROCHESTER, NY 14627-0178
PO BOX 270179, ROCHESTER, NY 14627-0179
PO BOX 270180, ROCHESTER, NY 14627-0180
PO BOX 270181, ROCHESTER, NY 14627-0181
PO BOX 270182, ROCHESTER, NY 14627-0182
PO BOX 270183, ROCHESTER, NY 14627-0183
PO BOX 270184, ROCHESTER, NY 14627-0184
PO BOX 270185, ROCHESTER, NY 14627-0185
PO BOX 270186, ROCHESTER, NY 14627-0186
PO BOX 270187, ROCHESTER, NY 14627-0187
PO BOX 270188, ROCHESTER, NY 14627-0188
PO BOX 270189, ROCHESTER, NY 14627-0189
PO BOX 270190, ROCHESTER, NY 14627-0190
PO BOX 270191, ROCHESTER, NY 14627-0191
PO BOX 270192, ROCHESTER, NY 14627-0192
PO BOX 270193, ROCHESTER, NY 14627-0193
PO BOX 270194, ROCHESTER, NY 14627-0194
PO BOX 270195, ROCHESTER, NY 14627-0195
PO BOX 270196, ROCHESTER, NY 14627-0196
PO BOX 270197, ROCHESTER, NY 14627-0197
PO BOX 270198, ROCHESTER, NY 14627-0198
PO BOX 270199, ROCHESTER, NY 14627-0199
PO BOX 270200, ROCHESTER, NY 14627-0200
PO BOX 270201, ROCHESTER, NY 14627-0201
PO BOX 270202, ROCHESTER, NY 14627-0202
PO BOX 270203, ROCHESTER, NY 14627-0203
PO BOX 270204, ROCHESTER, NY 14627-0204
PO BOX 270205, ROCHESTER, NY 14627-0205
PO BOX 270206, ROCHESTER, NY 14627-0206
PO BOX 270207, ROCHESTER, NY 14627-0207
PO BOX 270208, ROCHESTER, NY 14627-0208
PO BOX 270209, ROCHESTER, NY 14627-0209
PO BOX 270210, ROCHESTER, NY 14627-0210
PO BOX 270211, ROCHESTER, NY 14627-0211
PO BOX 270212, ROCHESTER, NY 14627-0212
PO BOX 270213, ROCHESTER, NY 14627-0213
PO BOX 270214, ROCHESTER, NY 14627-0214
PO BOX 270215, ROCHESTER, NY 14627-0215
PO BOX 270216, ROCHESTER, NY 14627-0216
PO BOX 270217, ROCHESTER, NY 14627-0217
PO BOX 270218, ROCHESTER, NY 14627-0218
PO BOX 270219, ROCHESTER, NY 14627-0219
PO BOX 270220, ROCHESTER, NY 14627-0220
PO BOX 270221, ROCHESTER, NY 14627-0221
PO BOX 270222, ROCHESTER, NY 14627-0222
PO BOX 270223, ROCHESTER, NY 14627-0223
PO BOX 270224, ROCHESTER, NY 14627-0224
PO BOX 270225, ROCHESTER, NY 14627-0225
PO BOX 270226, ROCHESTER, NY 14627-0226
PO BOX 270227, ROCHESTER, NY 14627-0227
PO BOX 270228, ROCHESTER, NY 14627-0228
PO BOX 270229, ROCHESTER, NY 14627-0229
PO BOX 270230, ROCHESTER, NY 14627-0230
PO BOX 270231, ROCHESTER, NY 14627-0231
PO BOX 270232, ROCHESTER, NY 14627-0232
PO BOX 270233, ROCHESTER, NY 14627-0233
PO BOX 270234, ROCHESTER, NY 14627-0234
PO BOX 270235, ROCHESTER, NY 14627-0235
PO BOX 270236, ROCHESTER, NY 14627-0236
PO BOX 270237, ROCHESTER, NY 14627-0237
PO BOX 270238, ROCHESTER, NY 14627-0238
PO BOX 270239, ROCHESTER, NY 14627-0239
PO BOX 270240, ROCHESTER, NY 14627-0240
PO BOX 270241, ROCHESTER, NY 14627-0241
PO BOX 270242, ROCHESTER, NY 14627-0242
PO BOX 270243, ROCHESTER, NY 14627-0243
PO BOX 270244, ROCHESTER, NY 14627-0244
PO BOX 270245, ROCHESTER, NY 14627-0245
PO BOX 270246, ROCHESTER, NY 14627-0246
PO BOX 270247, ROCHESTER, NY 14627-0247
PO BOX 270248, ROCHESTER, NY 14627-0248
PO BOX 270249, ROCHESTER, NY 14627-0249
PO BOX 270250, ROCHESTER, NY 14627-0250
PO BOX 270251, ROCHESTER, NY 14627-0251
PO BOX 270252, ROCHESTER, NY 14627-0252
PO BOX 270253, ROCHESTER, NY 14627-0253
PO BOX 270254, ROCHESTER, NY 14627-0254
PO BOX 270255, ROCHESTER, NY 14627-0255
PO BOX 270256, ROCHESTER, NY 14627-0256
PO BOX 270257, ROCHESTER, NY 14627-0257
PO BOX 270258, ROCHESTER, NY 14627-0258
PO BOX 270259, ROCHESTER, NY 14627-0259
PO BOX 270260, ROCHESTER, NY 14627-0260
PO BOX 270261, ROCHESTER, NY 14627-0261
PO BOX 270262, ROCHESTER, NY 14627-0262
PO BOX 270263, ROCHESTER, NY 14627-0263
PO BOX 270264, ROCHESTER, NY 14627-0264
PO BOX 270265, ROCHESTER, NY 14627-0265
PO BOX 270266, ROCHESTER, NY 14627-0266
PO BOX 270267, ROCHESTER, NY 14627-0267
PO BOX 270268, ROCHESTER, NY 14627-0268
PO BOX 270269, ROCHESTER, NY 14627-0269
PO BOX 270270, ROCHESTER, NY 14627-0270
PO BOX 270271, ROCHESTER, NY 14627-0271
PO BOX 270272, ROCHESTER, NY 14627-0272
PO BOX 270273, ROCHESTER, NY 14627-0273
PO BOX 270274, ROCHESTER, NY 14627-0274
PO BOX 270275, ROCHESTER, NY 14627-0275
PO BOX 270276, ROCHESTER, NY 14627-0276
PO BOX 270277, ROCHESTER, NY 14627-0277
PO BOX 270278, ROCHESTER, NY 14627-0278
PO BOX 270279, ROCHESTER, NY 14627-0279
PO BOX 270280, ROCHESTER, NY 14627-0280
PO BOX 270281, ROCHESTER, NY 14627-0281
PO BOX 270282, ROCHESTER, NY 14627-0282
PO BOX 270283, ROCHESTER, NY 14627-0283
PO BOX 270284, ROCHESTER, NY 14627-0284
PO BOX 270285, ROCHESTER, NY 14627-0285
PO BOX 270286, ROCHESTER, NY 14627-0286
PO BOX 270287, ROCHESTER, NY 14627-0287
PO BOX 270288, ROCHESTER, NY 14627-0288
PO BOX 270289, ROCHESTER, NY 14627-0289
PO BOX 270290, ROCHESTER, NY 14627-0290
PO BOX 270291, ROCHESTER, NY 14627-0291
PO BOX 270292, ROCHESTER, NY 14627-0292
PO BOX 270293, ROCHESTER, NY 14627-0293
PO BOX 270294, ROCHESTER, NY 14627-0294
PO BOX 270295, ROCHESTER, NY 14627-0295
PO BOX 270296, ROCHESTER, NY 14627-0296
PO BOX 270297, ROCHESTER, NY 14627-0297
PO BOX 270298, ROCHESTER, NY 14627-0298
PO BOX 270299, ROCHESTER, NY 14627-0299
PO BOX 270300, ROCHESTER, NY 14627-0300
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