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 281, POUGHKEEPSIE, NY 12602-0281
PO BOX 282, POUGHKEEPSIE, NY 12602-0282
PO BOX 283, POUGHKEEPSIE, NY 12602-0283
PO BOX 284, POUGHKEEPSIE, NY 12602-0284
PO BOX 285, POUGHKEEPSIE, NY 12602-0285
PO BOX 286, POUGHKEEPSIE, NY 12602-0286
PO BOX 287, POUGHKEEPSIE, NY 12602-0287
PO BOX 288, POUGHKEEPSIE, NY 12602-0288
PO BOX 289, POUGHKEEPSIE, NY 12602-0289
PO BOX 290, POUGHKEEPSIE, NY 12602-0290
PO BOX 291, POUGHKEEPSIE, NY 12602-0291
PO BOX 292, POUGHKEEPSIE, NY 12602-0292
PO BOX 293, POUGHKEEPSIE, NY 12602-0293
PO BOX 294, POUGHKEEPSIE, NY 12602-0294
PO BOX 295, POUGHKEEPSIE, NY 12602-0295
PO BOX 296, POUGHKEEPSIE, NY 12602-0296
PO BOX 297, POUGHKEEPSIE, NY 12602-0297
PO BOX 298, POUGHKEEPSIE, NY 12602-0298
PO BOX 299, POUGHKEEPSIE, NY 12602-0299
PO BOX 300, POUGHKEEPSIE, NY 12602-0300
PO BOX 301, POUGHKEEPSIE, NY 12602-0301
PO BOX 302, POUGHKEEPSIE, NY 12602-0302
PO BOX 303, POUGHKEEPSIE, NY 12602-0303
PO BOX 304, POUGHKEEPSIE, NY 12602-0304
PO BOX 305, POUGHKEEPSIE, NY 12602-0305
PO BOX 306, POUGHKEEPSIE, NY 12602-0306
PO BOX 307, POUGHKEEPSIE, NY 12602-0307
PO BOX 308, POUGHKEEPSIE, NY 12602-0308
PO BOX 309, POUGHKEEPSIE, NY 12602-0309
PO BOX 310, POUGHKEEPSIE, NY 12602-0310
PO BOX 311, POUGHKEEPSIE, NY 12602-0311
PO BOX 312, POUGHKEEPSIE, NY 12602-0312
PO BOX 313, POUGHKEEPSIE, NY 12602-0313
PO BOX 314, POUGHKEEPSIE, NY 12602-0314
PO BOX 315, POUGHKEEPSIE, NY 12602-0315
PO BOX 316, POUGHKEEPSIE, NY 12602-0316
PO BOX 317, POUGHKEEPSIE, NY 12602-0317
PO BOX 318, POUGHKEEPSIE, NY 12602-0318
PO BOX 319, POUGHKEEPSIE, NY 12602-0319
PO BOX 320, POUGHKEEPSIE, NY 12602-0320
PO BOX 321, POUGHKEEPSIE, NY 12602-0321
PO BOX 322, POUGHKEEPSIE, NY 12602-0322
PO BOX 323, POUGHKEEPSIE, NY 12602-0323
PO BOX 324, POUGHKEEPSIE, NY 12602-0324
PO BOX 325, POUGHKEEPSIE, NY 12602-0325
PO BOX 326, POUGHKEEPSIE, NY 12602-0326
PO BOX 327, POUGHKEEPSIE, NY 12602-0327
PO BOX 328, POUGHKEEPSIE, NY 12602-0328
PO BOX 329, POUGHKEEPSIE, NY 12602-0329
PO BOX 330, POUGHKEEPSIE, NY 12602-0330
PO BOX 331, POUGHKEEPSIE, NY 12602-0331
PO BOX 332, POUGHKEEPSIE, NY 12602-0332
PO BOX 333, POUGHKEEPSIE, NY 12602-0333
PO BOX 334, POUGHKEEPSIE, NY 12602-0334
PO BOX 335, POUGHKEEPSIE, NY 12602-0335
PO BOX 336, POUGHKEEPSIE, NY 12602-0336
PO BOX 337, POUGHKEEPSIE, NY 12602-0337
PO BOX 338, POUGHKEEPSIE, NY 12602-0338
PO BOX 339, POUGHKEEPSIE, NY 12602-0339
PO BOX 340, POUGHKEEPSIE, NY 12602-0340
PO BOX 341, POUGHKEEPSIE, NY 12602-0341
PO BOX 342, POUGHKEEPSIE, NY 12602-0342
PO BOX 343, POUGHKEEPSIE, NY 12602-0343
PO BOX 344, POUGHKEEPSIE, NY 12602-0344
PO BOX 345, POUGHKEEPSIE, NY 12602-0345
PO BOX 346, POUGHKEEPSIE, NY 12602-0346
PO BOX 347, POUGHKEEPSIE, NY 12602-0347
PO BOX 348, POUGHKEEPSIE, NY 12602-0348
PO BOX 349, POUGHKEEPSIE, NY 12602-0349
PO BOX 350, POUGHKEEPSIE, NY 12602-0350
PO BOX 351, POUGHKEEPSIE, NY 12602-0351
PO BOX 352, POUGHKEEPSIE, NY 12602-0352
PO BOX 353, POUGHKEEPSIE, NY 12602-0353
PO BOX 354, POUGHKEEPSIE, NY 12602-0354
PO BOX 355, POUGHKEEPSIE, NY 12602-0355
PO BOX 356, POUGHKEEPSIE, NY 12602-0356
PO BOX 357, POUGHKEEPSIE, NY 12602-0357
PO BOX 358, POUGHKEEPSIE, NY 12602-0358
PO BOX 359, POUGHKEEPSIE, NY 12602-0359
PO BOX 360, POUGHKEEPSIE, NY 12602-0360
PO BOX 361, POUGHKEEPSIE, NY 12602-0361
PO BOX 362, POUGHKEEPSIE, NY 12602-0362
PO BOX 363, POUGHKEEPSIE, NY 12602-0363
PO BOX 364, POUGHKEEPSIE, NY 12602-0364
PO BOX 365, POUGHKEEPSIE, NY 12602-0365
PO BOX 366, POUGHKEEPSIE, NY 12602-0366
PO BOX 367, POUGHKEEPSIE, NY 12602-0367
PO BOX 368, POUGHKEEPSIE, NY 12602-0368
PO BOX 369, POUGHKEEPSIE, NY 12602-0369
PO BOX 370, POUGHKEEPSIE, NY 12602-0370
PO BOX 371, POUGHKEEPSIE, NY 12602-0371
PO BOX 372, POUGHKEEPSIE, NY 12602-0372
PO BOX 373, POUGHKEEPSIE, NY 12602-0373
PO BOX 374, POUGHKEEPSIE, NY 12602-0374
PO BOX 375, POUGHKEEPSIE, NY 12602-0375
PO BOX 376, POUGHKEEPSIE, NY 12602-0376
PO BOX 377, POUGHKEEPSIE, NY 12602-0377
PO BOX 378, POUGHKEEPSIE, NY 12602-0378
PO BOX 379, POUGHKEEPSIE, NY 12602-0379
PO BOX 380, POUGHKEEPSIE, NY 12602-0380
PO BOX 381, POUGHKEEPSIE, NY 12602-0381
PO BOX 382, POUGHKEEPSIE, NY 12602-0382
PO BOX 383, POUGHKEEPSIE, NY 12602-0383
PO BOX 384, POUGHKEEPSIE, NY 12602-0384
PO BOX 385, POUGHKEEPSIE, NY 12602-0385
PO BOX 386, POUGHKEEPSIE, NY 12602-0386
PO BOX 387, POUGHKEEPSIE, NY 12602-0387
PO BOX 388, POUGHKEEPSIE, NY 12602-0388
PO BOX 389, POUGHKEEPSIE, NY 12602-0389
PO BOX 390, POUGHKEEPSIE, NY 12602-0390
PO BOX 391, POUGHKEEPSIE, NY 12602-0391
PO BOX 392, POUGHKEEPSIE, NY 12602-0392
PO BOX 393, POUGHKEEPSIE, NY 12602-0393
PO BOX 394, POUGHKEEPSIE, NY 12602-0394
PO BOX 395, POUGHKEEPSIE, NY 12602-0395
PO BOX 396, POUGHKEEPSIE, NY 12602-0396
PO BOX 397, POUGHKEEPSIE, NY 12602-0397
PO BOX 398, POUGHKEEPSIE, NY 12602-0398
PO BOX 399, POUGHKEEPSIE, NY 12602-0399
PO BOX 400, POUGHKEEPSIE, NY 12602-0400
PO BOX 401, POUGHKEEPSIE, NY 12602-0401
PO BOX 402, POUGHKEEPSIE, NY 12602-0402
PO BOX 403, POUGHKEEPSIE, NY 12602-0403
PO BOX 404, POUGHKEEPSIE, NY 12602-0404
PO BOX 405, POUGHKEEPSIE, NY 12602-0405
PO BOX 406, POUGHKEEPSIE, NY 12602-0406
PO BOX 407, POUGHKEEPSIE, NY 12602-0407
PO BOX 408, POUGHKEEPSIE, NY 12602-0408
PO BOX 409, POUGHKEEPSIE, NY 12602-0409
PO BOX 410, POUGHKEEPSIE, NY 12602-0410
PO BOX 411, POUGHKEEPSIE, NY 12602-0411
PO BOX 412, POUGHKEEPSIE, NY 12602-0412
PO BOX 413, POUGHKEEPSIE, NY 12602-0413
PO BOX 414, POUGHKEEPSIE, NY 12602-0414
PO BOX 415, POUGHKEEPSIE, NY 12602-0415
PO BOX 416, POUGHKEEPSIE, NY 12602-0416
PO BOX 417, POUGHKEEPSIE, NY 12602-0417
PO BOX 418, POUGHKEEPSIE, NY 12602-0418
PO BOX 419, POUGHKEEPSIE, NY 12602-0419
PO BOX 420, POUGHKEEPSIE, NY 12602-0420
PO BOX 421, POUGHKEEPSIE, NY 12602-0421
PO BOX 422, POUGHKEEPSIE, NY 12602-0422
PO BOX 423, POUGHKEEPSIE, NY 12602-0423
PO BOX 424, POUGHKEEPSIE, NY 12602-0424
PO BOX 425, POUGHKEEPSIE, NY 12602-0425
PO BOX 426, POUGHKEEPSIE, NY 12602-0426
PO BOX 427, POUGHKEEPSIE, NY 12602-0427
PO BOX 428, POUGHKEEPSIE, NY 12602-0428
PO BOX 429, POUGHKEEPSIE, NY 12602-0429
PO BOX 430, POUGHKEEPSIE, NY 12602-0430
PO BOX 431, POUGHKEEPSIE, NY 12602-0431
PO BOX 432, POUGHKEEPSIE, NY 12602-0432
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