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 300, PORT CRANE, NY 13833-0300
PO BOX 301, PORT CRANE, NY 13833-0301
PO BOX 302, PORT CRANE, NY 13833-0302
PO BOX 303, PORT CRANE, NY 13833-0303
PO BOX 304, PORT CRANE, NY 13833-0304
PO BOX 305, PORT CRANE, NY 13833-0305
PO BOX 306, PORT CRANE, NY 13833-0306
PO BOX 307, PORT CRANE, NY 13833-0307
PO BOX 308, PORT CRANE, NY 13833-0308
PO BOX 309, PORT CRANE, NY 13833-0309
PO BOX 310, PORT CRANE, NY 13833-0310
PO BOX 311, PORT CRANE, NY 13833-0311
PO BOX 312, PORT CRANE, NY 13833-0312
PO BOX 313, PORT CRANE, NY 13833-0313
PO BOX 314, PORT CRANE, NY 13833-0314
PO BOX 315, PORT CRANE, NY 13833-0315
PO BOX 316, PORT CRANE, NY 13833-0316
PO BOX 317, PORT CRANE, NY 13833-0317
PO BOX 318, PORT CRANE, NY 13833-0318
PO BOX 319, PORT CRANE, NY 13833-0319
PO BOX 320, PORT CRANE, NY 13833-0320
PO BOX 321, PORT CRANE, NY 13833-0321
PO BOX 322, PORT CRANE, NY 13833-0322
PO BOX 323, PORT CRANE, NY 13833-0323
PO BOX 324, PORT CRANE, NY 13833-0324
PO BOX 325, PORT CRANE, NY 13833-0325
PO BOX 326, PORT CRANE, NY 13833-0326
PO BOX 327, PORT CRANE, NY 13833-0327
PO BOX 328, PORT CRANE, NY 13833-0328
PO BOX 329, PORT CRANE, NY 13833-0329
PO BOX 330, PORT CRANE, NY 13833-0330
PO BOX 331, PORT CRANE, NY 13833-0331
PO BOX 332, PORT CRANE, NY 13833-0332
PO BOX 333, PORT CRANE, NY 13833-0333
PO BOX 334, PORT CRANE, NY 13833-0334
PO BOX 335, PORT CRANE, NY 13833-0335
PO BOX 336, PORT CRANE, NY 13833-0336
PO BOX 337, PORT CRANE, NY 13833-0337
PO BOX 338, PORT CRANE, NY 13833-0338
PO BOX 339, PORT CRANE, NY 13833-0339
PO BOX 340, PORT CRANE, NY 13833-0340
PO BOX 341, PORT CRANE, NY 13833-0341
PO BOX 342, PORT CRANE, NY 13833-0342
PO BOX 343, PORT CRANE, NY 13833-0343
PO BOX 344, PORT CRANE, NY 13833-0344
PO BOX 345, PORT CRANE, NY 13833-0345
PO BOX 346, PORT CRANE, NY 13833-0346
PO BOX 347, PORT CRANE, NY 13833-0347
PO BOX 348, PORT CRANE, NY 13833-0348
PO BOX 349, PORT CRANE, NY 13833-0349
PO BOX 350, PORT CRANE, NY 13833-0350
PO BOX 351, PORT CRANE, NY 13833-0351
PO BOX 352, PORT CRANE, NY 13833-0352
PO BOX 353, PORT CRANE, NY 13833-0353
PO BOX 354, PORT CRANE, NY 13833-0354
PO BOX 355, PORT CRANE, NY 13833-0355
PO BOX 356, PORT CRANE, NY 13833-0356
PO BOX 357, PORT CRANE, NY 13833-0357
PO BOX 358, PORT CRANE, NY 13833-0358
PO BOX 359, PORT CRANE, NY 13833-0359
PO BOX 360, PORT CRANE, NY 13833-0360
PO BOX 361, PORT CRANE, NY 13833-0361
PO BOX 362, PORT CRANE, NY 13833-0362
PO BOX 363, PORT CRANE, NY 13833-0363
PO BOX 364, PORT CRANE, NY 13833-0364
PO BOX 365, PORT CRANE, NY 13833-0365
PO BOX 366, PORT CRANE, NY 13833-0366
PO BOX 367, PORT CRANE, NY 13833-0367
PO BOX 368, PORT CRANE, NY 13833-0368
PO BOX 369, PORT CRANE, NY 13833-0369
PO BOX 370, PORT CRANE, NY 13833-0370
PO BOX 371, PORT CRANE, NY 13833-0371
PO BOX 372, PORT CRANE, NY 13833-0372
PO BOX 373, PORT CRANE, NY 13833-0373
PO BOX 374, PORT CRANE, NY 13833-0374
PO BOX 375, PORT CRANE, NY 13833-0375
PO BOX 376, PORT CRANE, NY 13833-0376
PO BOX 377, PORT CRANE, NY 13833-0377
PO BOX 378, PORT CRANE, NY 13833-0378
PO BOX 379, PORT CRANE, NY 13833-0379
PO BOX 380, PORT CRANE, NY 13833-0380
PO BOX 381, PORT CRANE, NY 13833-0381
PO BOX 382, PORT CRANE, NY 13833-0382
PO BOX 383, PORT CRANE, NY 13833-0383
PO BOX 384, PORT CRANE, NY 13833-0384
PO BOX 385, PORT CRANE, NY 13833-0385
PO BOX 386, PORT CRANE, NY 13833-0386
PO BOX 387, PORT CRANE, NY 13833-0387
PO BOX 388, PORT CRANE, NY 13833-0388
PO BOX 389, PORT CRANE, NY 13833-0389
PO BOX 390, PORT CRANE, NY 13833-0390
PO BOX 391, PORT CRANE, NY 13833-0391
PO BOX 392, PORT CRANE, NY 13833-0392
PO BOX 393, PORT CRANE, NY 13833-0393
PO BOX 394, PORT CRANE, NY 13833-0394
PO BOX 395, PORT CRANE, NY 13833-0395
PO BOX 396, PORT CRANE, NY 13833-0396
PO BOX 397, PORT CRANE, NY 13833-0397
PO BOX 398, PORT CRANE, NY 13833-0398
PO BOX 399, PORT CRANE, NY 13833-0399
PO BOX 400, PORT CRANE, NY 13833-0400
PO BOX 401, PORT CRANE, NY 13833-0401
PO BOX 402, PORT CRANE, NY 13833-0402
PO BOX 403, PORT CRANE, NY 13833-0403
PO BOX 404, PORT CRANE, NY 13833-0404
PO BOX 405, PORT CRANE, NY 13833-0405
PO BOX 406, PORT CRANE, NY 13833-0406
PO BOX 407, PORT CRANE, NY 13833-0407
PO BOX 408, PORT CRANE, NY 13833-0408
PO BOX 409, PORT CRANE, NY 13833-0409
PO BOX 410, PORT CRANE, NY 13833-0410
PO BOX 411, PORT CRANE, NY 13833-0411
PO BOX 412, PORT CRANE, NY 13833-0412
PO BOX 413, PORT CRANE, NY 13833-0413
PO BOX 414, PORT CRANE, NY 13833-0414
PO BOX 415, PORT CRANE, NY 13833-0415
PO BOX 416, PORT CRANE, NY 13833-0416
PO BOX 417, PORT CRANE, NY 13833-0417
PO BOX 418, PORT CRANE, NY 13833-0418
PO BOX 419, PORT CRANE, NY 13833-0419
PO BOX 420, PORT CRANE, NY 13833-0420
PO BOX 421, PORT CRANE, NY 13833-0421
PO BOX 422, PORT CRANE, NY 13833-0422
PO BOX 423, PORT CRANE, NY 13833-0423
PO BOX 424, PORT CRANE, NY 13833-0424
PO BOX 425, PORT CRANE, NY 13833-0425
PO BOX 426, PORT CRANE, NY 13833-0426
PO BOX 427, PORT CRANE, NY 13833-0427
PO BOX 428, PORT CRANE, NY 13833-0428
PO BOX 429, PORT CRANE, NY 13833-0429
PO BOX 430, PORT CRANE, NY 13833-0430
PO BOX 431, PORT CRANE, NY 13833-0431
PO BOX 432, PORT CRANE, NY 13833-0432
PO BOX 433, PORT CRANE, NY 13833-0433
PO BOX 434, PORT CRANE, NY 13833-0434
PO BOX 435, PORT CRANE, NY 13833-0435
PO BOX 436, PORT CRANE, NY 13833-0436
PO BOX 437, PORT CRANE, NY 13833-0437
PO BOX 438, PORT CRANE, NY 13833-0438
PO BOX 439, PORT CRANE, NY 13833-0439
PO BOX 440, PORT CRANE, NY 13833-0440
PO BOX 441, PORT CRANE, NY 13833-0441
PO BOX 442, PORT CRANE, NY 13833-0442
PO BOX 443, PORT CRANE, NY 13833-0443
PO BOX 444, PORT CRANE, NY 13833-0444
PO BOX 445, PORT CRANE, NY 13833-0445
PO BOX 446, PORT CRANE, NY 13833-0446
PO BOX 447, PORT CRANE, NY 13833-0447
PO BOX 448, PORT CRANE, NY 13833-0448
PO BOX 449, PORT CRANE, NY 13833-0449
PO BOX 450, PORT CRANE, NY 13833-0450
PO BOX 451, PORT CRANE, NY 13833-0451
PO BOX 452, PORT CRANE, NY 13833-0452
PO BOX 453, PORT CRANE, NY 13833-0453
PO BOX 454, PORT CRANE, NY 13833-0454
PO BOX 455, PORT CRANE, NY 13833-0455
PO BOX 456, PORT CRANE, NY 13833-0456
PO BOX 457, PORT CRANE, NY 13833-0457
PO BOX 458, PORT CRANE, NY 13833-0458
PO BOX 459, PORT CRANE, NY 13833-0459
PO BOX 460, PORT CRANE, NY 13833-0460
PO BOX 461, PORT CRANE, NY 13833-0461
PO BOX 462, PORT CRANE, NY 13833-0462
PO BOX 463, PORT CRANE, NY 13833-0463
PO BOX 464, PORT CRANE, NY 13833-0464
PO BOX 465, PORT CRANE, NY 13833-0465
PO BOX 466, PORT CRANE, NY 13833-0466
PO BOX 467, PORT CRANE, NY 13833-0467
PO BOX 468, PORT CRANE, NY 13833-0468
PO BOX 469, PORT CRANE, NY 13833-0469
PO BOX 470, PORT CRANE, NY 13833-0470
PO BOX 471, PORT CRANE, NY 13833-0471
PO BOX 472, PORT CRANE, NY 13833-0472
PO BOX 473, PORT CRANE, NY 13833-0473
PO BOX 474, PORT CRANE, NY 13833-0474
PO BOX 475, PORT CRANE, NY 13833-0475
PO BOX 476, PORT CRANE, NY 13833-0476
PO BOX 477, PORT CRANE, NY 13833-0477
PO BOX 478, PORT CRANE, NY 13833-0478
PO BOX 479, PORT CRANE, NY 13833-0479
PO BOX 480, PORT CRANE, NY 13833-0480
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