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, ALAMOGORDO, NM 88311-0281
PO BOX 282, ALAMOGORDO, NM 88311-0282
PO BOX 283, ALAMOGORDO, NM 88311-0283
PO BOX 284, ALAMOGORDO, NM 88311-0284
PO BOX 285, ALAMOGORDO, NM 88311-0285
PO BOX 286, ALAMOGORDO, NM 88311-0286
PO BOX 287, ALAMOGORDO, NM 88311-0287
PO BOX 288, ALAMOGORDO, NM 88311-0288
PO BOX 289, ALAMOGORDO, NM 88311-0289
PO BOX 290, ALAMOGORDO, NM 88311-0290
PO BOX 291, ALAMOGORDO, NM 88311-0291
PO BOX 292, ALAMOGORDO, NM 88311-0292
PO BOX 293, ALAMOGORDO, NM 88311-0293
PO BOX 294, ALAMOGORDO, NM 88311-0294
PO BOX 295, ALAMOGORDO, NM 88311-0295
PO BOX 296, ALAMOGORDO, NM 88311-0296
PO BOX 297, ALAMOGORDO, NM 88311-0297
PO BOX 298, ALAMOGORDO, NM 88311-0298
PO BOX 299, ALAMOGORDO, NM 88311-0299
PO BOX 300, ALAMOGORDO, NM 88311-0300
PO BOX 301, ALAMOGORDO, NM 88311-0301
PO BOX 302, ALAMOGORDO, NM 88311-0302
PO BOX 303, ALAMOGORDO, NM 88311-0303
PO BOX 304, ALAMOGORDO, NM 88311-0304
PO BOX 305, ALAMOGORDO, NM 88311-0305
PO BOX 306, ALAMOGORDO, NM 88311-0306
PO BOX 307, ALAMOGORDO, NM 88311-0307
PO BOX 308, ALAMOGORDO, NM 88311-0308
PO BOX 309, ALAMOGORDO, NM 88311-0309
PO BOX 310, ALAMOGORDO, NM 88311-0310
PO BOX 311, ALAMOGORDO, NM 88311-0311
PO BOX 312, ALAMOGORDO, NM 88311-0312
PO BOX 313, ALAMOGORDO, NM 88311-0313
PO BOX 314, ALAMOGORDO, NM 88311-0314
PO BOX 315, ALAMOGORDO, NM 88311-0315
PO BOX 316, ALAMOGORDO, NM 88311-0316
PO BOX 317, ALAMOGORDO, NM 88311-0317
PO BOX 318, ALAMOGORDO, NM 88311-0318
PO BOX 319, ALAMOGORDO, NM 88311-0319
PO BOX 320, ALAMOGORDO, NM 88311-0320
PO BOX 321, ALAMOGORDO, NM 88311-0321
PO BOX 322, ALAMOGORDO, NM 88311-0322
PO BOX 323, ALAMOGORDO, NM 88311-0323
PO BOX 324, ALAMOGORDO, NM 88311-0324
PO BOX 325, ALAMOGORDO, NM 88311-0325
PO BOX 326, ALAMOGORDO, NM 88311-0326
PO BOX 327, ALAMOGORDO, NM 88311-0327
PO BOX 328, ALAMOGORDO, NM 88311-0328
PO BOX 329, ALAMOGORDO, NM 88311-0329
PO BOX 330, ALAMOGORDO, NM 88311-0330
PO BOX 331, ALAMOGORDO, NM 88311-0331
PO BOX 332, ALAMOGORDO, NM 88311-0332
PO BOX 333, ALAMOGORDO, NM 88311-0333
PO BOX 334, ALAMOGORDO, NM 88311-0334
PO BOX 335, ALAMOGORDO, NM 88311-0335
PO BOX 336, ALAMOGORDO, NM 88311-0336
PO BOX 337, ALAMOGORDO, NM 88311-0337
PO BOX 338, ALAMOGORDO, NM 88311-0338
PO BOX 339, ALAMOGORDO, NM 88311-0339
PO BOX 340, ALAMOGORDO, NM 88311-0340
PO BOX 341, ALAMOGORDO, NM 88311-0341
PO BOX 342, ALAMOGORDO, NM 88311-0342
PO BOX 343, ALAMOGORDO, NM 88311-0343
PO BOX 344, ALAMOGORDO, NM 88311-0344
PO BOX 345, ALAMOGORDO, NM 88311-0345
PO BOX 346, ALAMOGORDO, NM 88311-0346
PO BOX 347, ALAMOGORDO, NM 88311-0347
PO BOX 348, ALAMOGORDO, NM 88311-0348
PO BOX 349, ALAMOGORDO, NM 88311-0349
PO BOX 350, ALAMOGORDO, NM 88311-0350
PO BOX 351, ALAMOGORDO, NM 88311-0351
PO BOX 352, ALAMOGORDO, NM 88311-0352
PO BOX 353, ALAMOGORDO, NM 88311-0353
PO BOX 354, ALAMOGORDO, NM 88311-0354
PO BOX 355, ALAMOGORDO, NM 88311-0355
PO BOX 356, ALAMOGORDO, NM 88311-0356
PO BOX 357, ALAMOGORDO, NM 88311-0357
PO BOX 358, ALAMOGORDO, NM 88311-0358
PO BOX 359, ALAMOGORDO, NM 88311-0359
PO BOX 360, ALAMOGORDO, NM 88311-0360
PO BOX 361, ALAMOGORDO, NM 88311-0361
PO BOX 362, ALAMOGORDO, NM 88311-0362
PO BOX 363, ALAMOGORDO, NM 88311-0363
PO BOX 364, ALAMOGORDO, NM 88311-0364
PO BOX 365, ALAMOGORDO, NM 88311-0365
PO BOX 366, ALAMOGORDO, NM 88311-0366
PO BOX 367, ALAMOGORDO, NM 88311-0367
PO BOX 368, ALAMOGORDO, NM 88311-0368
PO BOX 369, ALAMOGORDO, NM 88311-0369
PO BOX 370, ALAMOGORDO, NM 88311-0370
PO BOX 371, ALAMOGORDO, NM 88311-0371
PO BOX 372, ALAMOGORDO, NM 88311-0372
PO BOX 373, ALAMOGORDO, NM 88311-0373
PO BOX 374, ALAMOGORDO, NM 88311-0374
PO BOX 375, ALAMOGORDO, NM 88311-0375
PO BOX 376, ALAMOGORDO, NM 88311-0376
PO BOX 377, ALAMOGORDO, NM 88311-0377
PO BOX 378, ALAMOGORDO, NM 88311-0378
PO BOX 379, ALAMOGORDO, NM 88311-0379
PO BOX 380, ALAMOGORDO, NM 88311-0380
PO BOX 381, ALAMOGORDO, NM 88311-0381
PO BOX 382, ALAMOGORDO, NM 88311-0382
PO BOX 383, ALAMOGORDO, NM 88311-0383
PO BOX 384, ALAMOGORDO, NM 88311-0384
PO BOX 385, ALAMOGORDO, NM 88311-0385
PO BOX 386, ALAMOGORDO, NM 88311-0386
PO BOX 387, ALAMOGORDO, NM 88311-0387
PO BOX 388, ALAMOGORDO, NM 88311-0388
PO BOX 389, ALAMOGORDO, NM 88311-0389
PO BOX 390, ALAMOGORDO, NM 88311-0390
PO BOX 391, ALAMOGORDO, NM 88311-0391
PO BOX 392, ALAMOGORDO, NM 88311-0392
PO BOX 393, ALAMOGORDO, NM 88311-0393
PO BOX 394, ALAMOGORDO, NM 88311-0394
PO BOX 395, ALAMOGORDO, NM 88311-0395
PO BOX 396, ALAMOGORDO, NM 88311-0396
PO BOX 397, ALAMOGORDO, NM 88311-0397
PO BOX 398, ALAMOGORDO, NM 88311-0398
PO BOX 399, ALAMOGORDO, NM 88311-0399
PO BOX 400, ALAMOGORDO, NM 88311-0400
PO BOX 401, ALAMOGORDO, NM 88311-0401
PO BOX 402, ALAMOGORDO, NM 88311-0402
PO BOX 403, ALAMOGORDO, NM 88311-0403
PO BOX 404, ALAMOGORDO, NM 88311-0404
PO BOX 405, ALAMOGORDO, NM 88311-0405
PO BOX 406, ALAMOGORDO, NM 88311-0406
PO BOX 407, ALAMOGORDO, NM 88311-0407
PO BOX 408, ALAMOGORDO, NM 88311-0408
PO BOX 409, ALAMOGORDO, NM 88311-0409
PO BOX 410, ALAMOGORDO, NM 88311-0410
PO BOX 411, ALAMOGORDO, NM 88311-0411
PO BOX 412, ALAMOGORDO, NM 88311-0412
PO BOX 413, ALAMOGORDO, NM 88311-0413
PO BOX 414, ALAMOGORDO, NM 88311-0414
PO BOX 415, ALAMOGORDO, NM 88311-0415
PO BOX 416, ALAMOGORDO, NM 88311-0416
PO BOX 417, ALAMOGORDO, NM 88311-0417
PO BOX 418, ALAMOGORDO, NM 88311-0418
PO BOX 419, ALAMOGORDO, NM 88311-0419
PO BOX 420, ALAMOGORDO, NM 88311-0420
PO BOX 421, ALAMOGORDO, NM 88311-0421
PO BOX 422, ALAMOGORDO, NM 88311-0422
PO BOX 423, ALAMOGORDO, NM 88311-0423
PO BOX 424, ALAMOGORDO, NM 88311-0424
PO BOX 425, ALAMOGORDO, NM 88311-0425
PO BOX 426, ALAMOGORDO, NM 88311-0426
PO BOX 427, ALAMOGORDO, NM 88311-0427
PO BOX 428, ALAMOGORDO, NM 88311-0428
PO BOX 429, ALAMOGORDO, NM 88311-0429
PO BOX 430, ALAMOGORDO, NM 88311-0430
PO BOX 431, ALAMOGORDO, NM 88311-0431
PO BOX 432, ALAMOGORDO, NM 88311-0432
PO BOX 433, ALAMOGORDO, NM 88311-0433
PO BOX 434, ALAMOGORDO, NM 88311-0434
PO BOX 435, ALAMOGORDO, NM 88311-0435
PO BOX 436, ALAMOGORDO, NM 88311-0436
PO BOX 437, ALAMOGORDO, NM 88311-0437
PO BOX 438, ALAMOGORDO, NM 88311-0438
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