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 339, SCHENECTADY, NY 12301-0339
PO BOX 340, SCHENECTADY, NY 12301-0340
PO BOX 341, SCHENECTADY, NY 12301-0341
PO BOX 342, SCHENECTADY, NY 12301-0342
PO BOX 343, SCHENECTADY, NY 12301-0343
PO BOX 344, SCHENECTADY, NY 12301-0344
PO BOX 345, SCHENECTADY, NY 12301-0345
PO BOX 346, SCHENECTADY, NY 12301-0346
PO BOX 347, SCHENECTADY, NY 12301-0347
PO BOX 348, SCHENECTADY, NY 12301-0348
PO BOX 349, SCHENECTADY, NY 12301-0349
PO BOX 350, SCHENECTADY, NY 12301-0350
PO BOX 351, SCHENECTADY, NY 12301-0351
PO BOX 352, SCHENECTADY, NY 12301-0352
PO BOX 353, SCHENECTADY, NY 12301-0353
PO BOX 354, SCHENECTADY, NY 12301-0354
PO BOX 355, SCHENECTADY, NY 12301-0355
PO BOX 356, SCHENECTADY, NY 12301-0356
PO BOX 357, SCHENECTADY, NY 12301-0357
PO BOX 358, SCHENECTADY, NY 12301-0358
PO BOX 359, SCHENECTADY, NY 12301-0359
PO BOX 360, SCHENECTADY, NY 12301-0360
PO BOX 361, SCHENECTADY, NY 12301-0361
PO BOX 362, SCHENECTADY, NY 12301-0362
PO BOX 363, SCHENECTADY, NY 12301-0363
PO BOX 364, SCHENECTADY, NY 12301-0364
PO BOX 365, SCHENECTADY, NY 12301-0365
PO BOX 366, SCHENECTADY, NY 12301-0366
PO BOX 367, SCHENECTADY, NY 12301-0367
PO BOX 368, SCHENECTADY, NY 12301-0368
PO BOX 369, SCHENECTADY, NY 12301-0369
PO BOX 370, SCHENECTADY, NY 12301-0370
PO BOX 371, SCHENECTADY, NY 12301-0371
PO BOX 372, SCHENECTADY, NY 12301-0372
PO BOX 373, SCHENECTADY, NY 12301-0373
PO BOX 374, SCHENECTADY, NY 12301-0374
PO BOX 375, SCHENECTADY, NY 12301-0375
PO BOX 376, SCHENECTADY, NY 12301-0376
PO BOX 377, SCHENECTADY, NY 12301-0377
PO BOX 378, SCHENECTADY, NY 12301-0378
PO BOX 379, SCHENECTADY, NY 12301-0379
PO BOX 380, SCHENECTADY, NY 12301-0380
PO BOX 381, SCHENECTADY, NY 12301-0381
PO BOX 382, SCHENECTADY, NY 12301-0382
PO BOX 383, SCHENECTADY, NY 12301-0383
PO BOX 384, SCHENECTADY, NY 12301-0384
PO BOX 385, SCHENECTADY, NY 12301-0385
PO BOX 386, SCHENECTADY, NY 12301-0386
PO BOX 387, SCHENECTADY, NY 12301-0387
PO BOX 388, SCHENECTADY, NY 12301-0388
PO BOX 389, SCHENECTADY, NY 12301-0389
PO BOX 390, SCHENECTADY, NY 12301-0390
PO BOX 391, SCHENECTADY, NY 12301-0391
PO BOX 392, SCHENECTADY, NY 12301-0392
PO BOX 393, SCHENECTADY, NY 12301-0393
PO BOX 394, SCHENECTADY, NY 12301-0394
PO BOX 395, SCHENECTADY, NY 12301-0395
PO BOX 396, SCHENECTADY, NY 12301-0396
PO BOX 397, SCHENECTADY, NY 12301-0397
PO BOX 398, SCHENECTADY, NY 12301-0398
PO BOX 399, SCHENECTADY, NY 12301-0399
PO BOX 400, SCHENECTADY, NY 12301-0400
PO BOX 401, SCHENECTADY, NY 12301-0401
PO BOX 402, SCHENECTADY, NY 12301-0402
PO BOX 403, SCHENECTADY, NY 12301-0403
PO BOX 404, SCHENECTADY, NY 12301-0404
PO BOX 405, SCHENECTADY, NY 12301-0405
PO BOX 406, SCHENECTADY, NY 12301-0406
PO BOX 407, SCHENECTADY, NY 12301-0407
PO BOX 408, SCHENECTADY, NY 12301-0408
PO BOX 409, SCHENECTADY, NY 12301-0409
PO BOX 410, SCHENECTADY, NY 12301-0410
PO BOX 411, SCHENECTADY, NY 12301-0411
PO BOX 412, SCHENECTADY, NY 12301-0412
PO BOX 413, SCHENECTADY, NY 12301-0413
PO BOX 414, SCHENECTADY, NY 12301-0414
PO BOX 415, SCHENECTADY, NY 12301-0415
PO BOX 416, SCHENECTADY, NY 12301-0416
PO BOX 417, SCHENECTADY, NY 12301-0417
PO BOX 418, SCHENECTADY, NY 12301-0418
PO BOX 419, SCHENECTADY, NY 12301-0419
PO BOX 420, SCHENECTADY, NY 12301-0420
PO BOX 421, SCHENECTADY, NY 12301-0421
PO BOX 422, SCHENECTADY, NY 12301-0422
PO BOX 423, SCHENECTADY, NY 12301-0423
PO BOX 424, SCHENECTADY, NY 12301-0424
PO BOX 425, SCHENECTADY, NY 12301-0425
PO BOX 426, SCHENECTADY, NY 12301-0426
PO BOX 427, SCHENECTADY, NY 12301-0427
PO BOX 428, SCHENECTADY, NY 12301-0428
PO BOX 429, SCHENECTADY, NY 12301-0429
PO BOX 430, SCHENECTADY, NY 12301-0430
PO BOX 431, SCHENECTADY, NY 12301-0431
PO BOX 432, SCHENECTADY, NY 12301-0432
PO BOX 433, SCHENECTADY, NY 12301-0433
PO BOX 434, SCHENECTADY, NY 12301-0434
PO BOX 435, SCHENECTADY, NY 12301-0435
PO BOX 436, SCHENECTADY, NY 12301-0436
PO BOX 437, SCHENECTADY, NY 12301-0437
PO BOX 438, SCHENECTADY, NY 12301-0438
PO BOX 439, SCHENECTADY, NY 12301-0439
PO BOX 440, SCHENECTADY, NY 12301-0440
PO BOX 441, SCHENECTADY, NY 12301-0441
PO BOX 442, SCHENECTADY, NY 12301-0442
PO BOX 443, SCHENECTADY, NY 12301-0443
PO BOX 444, SCHENECTADY, NY 12301-0444
PO BOX 445, SCHENECTADY, NY 12301-0445
PO BOX 446, SCHENECTADY, NY 12301-0446
PO BOX 447, SCHENECTADY, NY 12301-0447
PO BOX 448, SCHENECTADY, NY 12301-0448
PO BOX 449, SCHENECTADY, NY 12301-0449
PO BOX 450, SCHENECTADY, NY 12301-0450
PO BOX 451, SCHENECTADY, NY 12301-0451
PO BOX 452, SCHENECTADY, NY 12301-0452
PO BOX 453, SCHENECTADY, NY 12301-0453
PO BOX 454, SCHENECTADY, NY 12301-0454
PO BOX 455, SCHENECTADY, NY 12301-0455
PO BOX 456, SCHENECTADY, NY 12301-0456
PO BOX 457, SCHENECTADY, NY 12301-0457
PO BOX 458, SCHENECTADY, NY 12301-0458
PO BOX 459, SCHENECTADY, NY 12301-0459
PO BOX 460, SCHENECTADY, NY 12301-0460
PO BOX 461, SCHENECTADY, NY 12301-0461
PO BOX 462, SCHENECTADY, NY 12301-0462
PO BOX 463, SCHENECTADY, NY 12301-0463
PO BOX 464, SCHENECTADY, NY 12301-0464
PO BOX 465, SCHENECTADY, NY 12301-0465
PO BOX 466, SCHENECTADY, NY 12301-0466
PO BOX 467, SCHENECTADY, NY 12301-0467
PO BOX 468, SCHENECTADY, NY 12301-0468
PO BOX 469, SCHENECTADY, NY 12301-0469
PO BOX 470, SCHENECTADY, NY 12301-0470
PO BOX 471, SCHENECTADY, NY 12301-0471
PO BOX 472, SCHENECTADY, NY 12301-0472
PO BOX 473, SCHENECTADY, NY 12301-0473
PO BOX 474, SCHENECTADY, NY 12301-0474
PO BOX 475, SCHENECTADY, NY 12301-0475
PO BOX 476, SCHENECTADY, NY 12301-0476
PO BOX 477, SCHENECTADY, NY 12301-0477
PO BOX 478, SCHENECTADY, NY 12301-0478
PO BOX 479, SCHENECTADY, NY 12301-0479
PO BOX 480, SCHENECTADY, NY 12301-0480
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