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 274500, ROCHESTER, NY 14627-4500
PO BOX 274501, ROCHESTER, NY 14627-4501
PO BOX 274502, ROCHESTER, NY 14627-4502
PO BOX 274503, ROCHESTER, NY 14627-4503
PO BOX 274504, ROCHESTER, NY 14627-4504
PO BOX 274505, ROCHESTER, NY 14627-4505
PO BOX 274506, ROCHESTER, NY 14627-4506
PO BOX 274507, ROCHESTER, NY 14627-4507
PO BOX 274508, ROCHESTER, NY 14627-4508
PO BOX 274509, ROCHESTER, NY 14627-4509
PO BOX 274510, ROCHESTER, NY 14627-4510
PO BOX 274511, ROCHESTER, NY 14627-4511
PO BOX 274512, ROCHESTER, NY 14627-4512
PO BOX 274513, ROCHESTER, NY 14627-4513
PO BOX 274514, ROCHESTER, NY 14627-4514
PO BOX 274515, ROCHESTER, NY 14627-4515
PO BOX 274516, ROCHESTER, NY 14627-4516
PO BOX 274517, ROCHESTER, NY 14627-4517
PO BOX 274518, ROCHESTER, NY 14627-4518
PO BOX 274519, ROCHESTER, NY 14627-4519
PO BOX 274520, ROCHESTER, NY 14627-4520
PO BOX 274521, ROCHESTER, NY 14627-4521
PO BOX 274522, ROCHESTER, NY 14627-4522
PO BOX 274523, ROCHESTER, NY 14627-4523
PO BOX 274524, ROCHESTER, NY 14627-4524
PO BOX 274525, ROCHESTER, NY 14627-4525
PO BOX 274526, ROCHESTER, NY 14627-4526
PO BOX 274527, ROCHESTER, NY 14627-4527
PO BOX 274528, ROCHESTER, NY 14627-4528
PO BOX 274529, ROCHESTER, NY 14627-4529
PO BOX 274530, ROCHESTER, NY 14627-4530
PO BOX 274531, ROCHESTER, NY 14627-4531
PO BOX 274532, ROCHESTER, NY 14627-4532
PO BOX 274533, ROCHESTER, NY 14627-4533
PO BOX 274534, ROCHESTER, NY 14627-4534
PO BOX 274535, ROCHESTER, NY 14627-4535
PO BOX 274536, ROCHESTER, NY 14627-4536
PO BOX 274537, ROCHESTER, NY 14627-4537
PO BOX 274538, ROCHESTER, NY 14627-4538
PO BOX 274539, ROCHESTER, NY 14627-4539
PO BOX 274540, ROCHESTER, NY 14627-4540
PO BOX 274541, ROCHESTER, NY 14627-4541
PO BOX 274542, ROCHESTER, NY 14627-4542
PO BOX 274543, ROCHESTER, NY 14627-4543
PO BOX 274544, ROCHESTER, NY 14627-4544
PO BOX 274545, ROCHESTER, NY 14627-4545
PO BOX 274546, ROCHESTER, NY 14627-4546
PO BOX 274547, ROCHESTER, NY 14627-4547
PO BOX 274548, ROCHESTER, NY 14627-4548
PO BOX 274549, ROCHESTER, NY 14627-4549
PO BOX 274550, ROCHESTER, NY 14627-4550
PO BOX 274551, ROCHESTER, NY 14627-4551
PO BOX 274552, ROCHESTER, NY 14627-4552
PO BOX 274553, ROCHESTER, NY 14627-4553
PO BOX 274554, ROCHESTER, NY 14627-4554
PO BOX 274555, ROCHESTER, NY 14627-4555
PO BOX 274556, ROCHESTER, NY 14627-4556
PO BOX 274557, ROCHESTER, NY 14627-4557
PO BOX 274558, ROCHESTER, NY 14627-4558
PO BOX 274559, ROCHESTER, NY 14627-4559
PO BOX 274560, ROCHESTER, NY 14627-4560
PO BOX 274561, ROCHESTER, NY 14627-4561
PO BOX 274562, ROCHESTER, NY 14627-4562
PO BOX 274563, ROCHESTER, NY 14627-4563
PO BOX 274564, ROCHESTER, NY 14627-4564
PO BOX 274565, ROCHESTER, NY 14627-4565
PO BOX 274566, ROCHESTER, NY 14627-4566
PO BOX 274567, ROCHESTER, NY 14627-4567
PO BOX 274568, ROCHESTER, NY 14627-4568
PO BOX 274569, ROCHESTER, NY 14627-4569
PO BOX 274570, ROCHESTER, NY 14627-4570
PO BOX 274571, ROCHESTER, NY 14627-4571
PO BOX 274572, ROCHESTER, NY 14627-4572
PO BOX 274573, ROCHESTER, NY 14627-4573
PO BOX 274574, ROCHESTER, NY 14627-4574
PO BOX 274575, ROCHESTER, NY 14627-4575
PO BOX 274576, ROCHESTER, NY 14627-4576
PO BOX 274577, ROCHESTER, NY 14627-4577
PO BOX 274578, ROCHESTER, NY 14627-4578
PO BOX 274579, ROCHESTER, NY 14627-4579
PO BOX 274580, ROCHESTER, NY 14627-4580
PO BOX 274581, ROCHESTER, NY 14627-4581
PO BOX 274582, ROCHESTER, NY 14627-4582
PO BOX 274583, ROCHESTER, NY 14627-4583
PO BOX 274584, ROCHESTER, NY 14627-4584
PO BOX 274585, ROCHESTER, NY 14627-4585
PO BOX 274586, ROCHESTER, NY 14627-4586
PO BOX 274587, ROCHESTER, NY 14627-4587
PO BOX 274588, ROCHESTER, NY 14627-4588
PO BOX 274589, ROCHESTER, NY 14627-4589
PO BOX 274590, ROCHESTER, NY 14627-4590
PO BOX 274591, ROCHESTER, NY 14627-4591
PO BOX 274592, ROCHESTER, NY 14627-4592
PO BOX 274593, ROCHESTER, NY 14627-4593
PO BOX 274594, ROCHESTER, NY 14627-4594
PO BOX 274595, ROCHESTER, NY 14627-4595
PO BOX 274596, ROCHESTER, NY 14627-4596
PO BOX 274597, ROCHESTER, NY 14627-4597
PO BOX 274598, ROCHESTER, NY 14627-4598
PO BOX 274599, ROCHESTER, NY 14627-4599
PO BOX 274600, ROCHESTER, NY 14627-4600
PO BOX 274601, ROCHESTER, NY 14627-4601
PO BOX 274602, ROCHESTER, NY 14627-4602
PO BOX 274603, ROCHESTER, NY 14627-4603
PO BOX 274604, ROCHESTER, NY 14627-4604
PO BOX 274605, ROCHESTER, NY 14627-4605
PO BOX 274606, ROCHESTER, NY 14627-4606
PO BOX 274607, ROCHESTER, NY 14627-4607
PO BOX 274608, ROCHESTER, NY 14627-4608
PO BOX 274609, ROCHESTER, NY 14627-4609
PO BOX 274610, ROCHESTER, NY 14627-4610
PO BOX 274611, ROCHESTER, NY 14627-4611
PO BOX 274612, ROCHESTER, NY 14627-4612
PO BOX 274613, ROCHESTER, NY 14627-4613
PO BOX 274614, ROCHESTER, NY 14627-4614
PO BOX 274615, ROCHESTER, NY 14627-4615
PO BOX 274616, ROCHESTER, NY 14627-4616
PO BOX 274617, ROCHESTER, NY 14627-4617
PO BOX 274618, ROCHESTER, NY 14627-4618
PO BOX 274619, ROCHESTER, NY 14627-4619
PO BOX 274620, ROCHESTER, NY 14627-4620
PO BOX 274621, ROCHESTER, NY 14627-4621
PO BOX 274622, ROCHESTER, NY 14627-4622
PO BOX 274623, ROCHESTER, NY 14627-4623
PO BOX 274624, ROCHESTER, NY 14627-4624
PO BOX 274625, ROCHESTER, NY 14627-4625
PO BOX 274626, ROCHESTER, NY 14627-4626
PO BOX 274627, ROCHESTER, NY 14627-4627
PO BOX 274628, ROCHESTER, NY 14627-4628
PO BOX 274629, ROCHESTER, NY 14627-4629
PO BOX 274630, ROCHESTER, NY 14627-4630
PO BOX 274631, ROCHESTER, NY 14627-4631
PO BOX 274632, ROCHESTER, NY 14627-4632
PO BOX 274633, ROCHESTER, NY 14627-4633
PO BOX 274634, ROCHESTER, NY 14627-4634
PO BOX 274635, ROCHESTER, NY 14627-4635
PO BOX 274636, ROCHESTER, NY 14627-4636
PO BOX 274637, ROCHESTER, NY 14627-4637
PO BOX 274638, ROCHESTER, NY 14627-4638
PO BOX 274639, ROCHESTER, NY 14627-4639
PO BOX 274640, ROCHESTER, NY 14627-4640
PO BOX 274641, ROCHESTER, NY 14627-4641
PO BOX 274642, ROCHESTER, NY 14627-4642
PO BOX 274643, ROCHESTER, NY 14627-4643
PO BOX 274644, ROCHESTER, NY 14627-4644
PO BOX 274645, ROCHESTER, NY 14627-4645
PO BOX 274646, ROCHESTER, NY 14627-4646
PO BOX 274647, ROCHESTER, NY 14627-4647
PO BOX 274648, ROCHESTER, NY 14627-4648
PO BOX 274649, ROCHESTER, NY 14627-4649
PO BOX 274650, ROCHESTER, NY 14627-4650
PO BOX 274651, ROCHESTER, NY 14627-4651
PO BOX 274652, ROCHESTER, NY 14627-4652
PO BOX 274653, ROCHESTER, NY 14627-4653
PO BOX 274654, ROCHESTER, NY 14627-4654
PO BOX 274655, ROCHESTER, NY 14627-4655
PO BOX 274656, ROCHESTER, NY 14627-4656
PO BOX 274657, ROCHESTER, NY 14627-4657
PO BOX 274658, ROCHESTER, NY 14627-4658
PO BOX 274659, ROCHESTER, NY 14627-4659
PO BOX 274660, ROCHESTER, NY 14627-4660
PO BOX 274661, ROCHESTER, NY 14627-4661
PO BOX 274662, ROCHESTER, NY 14627-4662
PO BOX 274663, ROCHESTER, NY 14627-4663
PO BOX 274664, ROCHESTER, NY 14627-4664
PO BOX 274665, ROCHESTER, NY 14627-4665
PO BOX 274666, ROCHESTER, NY 14627-4666
PO BOX 274667, ROCHESTER, NY 14627-4667
PO BOX 274668, ROCHESTER, NY 14627-4668
PO BOX 274669, ROCHESTER, NY 14627-4669
PO BOX 274670, ROCHESTER, NY 14627-4670
PO BOX 274671, ROCHESTER, NY 14627-4671
PO BOX 274672, ROCHESTER, NY 14627-4672
PO BOX 274673, ROCHESTER, NY 14627-4673
PO BOX 274674, ROCHESTER, NY 14627-4674
PO BOX 274675, ROCHESTER, NY 14627-4675
PO BOX 274676, ROCHESTER, NY 14627-4676
PO BOX 274677, ROCHESTER, NY 14627-4677
PO BOX 274678, ROCHESTER, NY 14627-4678
PO BOX 274679, ROCHESTER, NY 14627-4679
PO BOX 274680, ROCHESTER, NY 14627-4680
PO BOX 274681, ROCHESTER, NY 14627-4681
PO BOX 274682, ROCHESTER, NY 14627-4682
PO BOX 274683, ROCHESTER, NY 14627-4683
PO BOX 274684, ROCHESTER, NY 14627-4684
PO BOX 274685, ROCHESTER, NY 14627-4685
PO BOX 274686, ROCHESTER, NY 14627-4686
PO BOX 274687, ROCHESTER, NY 14627-4687
PO BOX 274688, ROCHESTER, NY 14627-4688
PO BOX 274689, ROCHESTER, NY 14627-4689
PO BOX 274690, ROCHESTER, NY 14627-4690
PO BOX 274691, ROCHESTER, NY 14627-4691
PO BOX 274692, ROCHESTER, NY 14627-4692
PO BOX 274693, ROCHESTER, NY 14627-4693
PO BOX 274694, ROCHESTER, NY 14627-4694
PO BOX 274695, ROCHESTER, NY 14627-4695
PO BOX 274696, ROCHESTER, NY 14627-4696
PO BOX 274697, ROCHESTER, NY 14627-4697
PO BOX 274698, ROCHESTER, NY 14627-4698
PO BOX 274699, ROCHESTER, NY 14627-4699
PO BOX 274700, ROCHESTER, NY 14627-4700
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