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 650266, DALLAS, TX 75265-0266
PO BOX 650267, DALLAS, TX 75265-0267
PO BOX 650268, DALLAS, TX 75265-0268
PO BOX 650269, DALLAS, TX 75265-0269
PO BOX 650270, DALLAS, TX 75265-0270
PO BOX 650271, DALLAS, TX 75265-0271
PO BOX 650272, DALLAS, TX 75265-0272
PO BOX 650273, DALLAS, TX 75265-0273
PO BOX 650274, DALLAS, TX 75265-0274
PO BOX 650275, DALLAS, TX 75265-0275
PO BOX 650276, DALLAS, TX 75265-0276
PO BOX 650277, DALLAS, TX 75265-0277
PO BOX 650278, DALLAS, TX 75265-0278
PO BOX 650279, DALLAS, TX 75265-0279
PO BOX 650280, DALLAS, TX 75265-0280
PO BOX 650281, DALLAS, TX 75265-0281
PO BOX 650282, DALLAS, TX 75265-0282
PO BOX 650283, DALLAS, TX 75265-0283
PO BOX 650284, DALLAS, TX 75265-0284
PO BOX 650285, DALLAS, TX 75265-0285
PO BOX 650286, DALLAS, TX 75265-0286
PO BOX 650287, DALLAS, TX 75265-0287
PO BOX 650288, DALLAS, TX 75265-0288
PO BOX 650289, DALLAS, TX 75265-0289
PO BOX 650290, DALLAS, TX 75265-0290
PO BOX 650291, DALLAS, TX 75265-0291
PO BOX 650292, DALLAS, TX 75265-0292
PO BOX 650293, DALLAS, TX 75265-0293
PO BOX 650294, DALLAS, TX 75265-0294
PO BOX 650295, DALLAS, TX 75265-0295
PO BOX 650296, DALLAS, TX 75265-0296
PO BOX 650297, DALLAS, TX 75265-0297
PO BOX 650298, DALLAS, TX 75265-0298
PO BOX 650299, DALLAS, TX 75265-0299
PO BOX 650300, DALLAS, TX 75265-0300
PO BOX 650301, DALLAS, TX 75265-0301
PO BOX 650302, DALLAS, TX 75265-0302
PO BOX 650303, DALLAS, TX 75265-0303
PO BOX 650304, DALLAS, TX 75265-0304
PO BOX 650305, DALLAS, TX 75265-0305
PO BOX 650306, DALLAS, TX 75265-0306
PO BOX 650307, DALLAS, TX 75265-0307
PO BOX 650308, DALLAS, TX 75265-0308
PO BOX 650309, DALLAS, TX 75265-0309
PO BOX 650310, DALLAS, TX 75265-0310
PO BOX 650311, DALLAS, TX 75265-0311
PO BOX 650312, DALLAS, TX 75265-0312
PO BOX 650313, DALLAS, TX 75265-0313
PO BOX 650314, DALLAS, TX 75265-0314
PO BOX 650315, DALLAS, TX 75265-0315
PO BOX 650316, DALLAS, TX 75265-0316
PO BOX 650317, DALLAS, TX 75265-0317
PO BOX 650318, DALLAS, TX 75265-0318
PO BOX 650319, DALLAS, TX 75265-0319
PO BOX 650320, DALLAS, TX 75265-0320
PO BOX 650321, DALLAS, TX 75265-0321
PO BOX 650322, DALLAS, TX 75265-0322
PO BOX 650323, DALLAS, TX 75265-0323
PO BOX 650324, DALLAS, TX 75265-0324
PO BOX 650325, DALLAS, TX 75265-0325
PO BOX 650326, DALLAS, TX 75265-0326
PO BOX 650327, DALLAS, TX 75265-0327
PO BOX 650328, DALLAS, TX 75265-0328
PO BOX 650329, DALLAS, TX 75265-0329
PO BOX 650330, DALLAS, TX 75265-0330
PO BOX 650331, DALLAS, TX 75265-0331
PO BOX 650332, DALLAS, TX 75265-0332
PO BOX 650333, DALLAS, TX 75265-0333
PO BOX 650334, DALLAS, TX 75265-0334
PO BOX 650335, DALLAS, TX 75265-0335
PO BOX 650336, DALLAS, TX 75265-0336
PO BOX 650337, DALLAS, TX 75265-0337
PO BOX 650338, DALLAS, TX 75265-0338
PO BOX 650339, DALLAS, TX 75265-0339
PO BOX 650340, DALLAS, TX 75265-0340
PO BOX 650341, DALLAS, TX 75265-0341
PO BOX 650342, DALLAS, TX 75265-0342
PO BOX 650343, DALLAS, TX 75265-0343
PO BOX 650344, DALLAS, TX 75265-0344
PO BOX 650345, DALLAS, TX 75265-0345
PO BOX 650346, DALLAS, TX 75265-0346
PO BOX 650347, DALLAS, TX 75265-0347
PO BOX 650348, DALLAS, TX 75265-0348
PO BOX 650349, DALLAS, TX 75265-0349
PO BOX 650350, DALLAS, TX 75265-0350
PO BOX 650351, DALLAS, TX 75265-0351
PO BOX 650352, DALLAS, TX 75265-0352
PO BOX 650353, DALLAS, TX 75265-0353
PO BOX 650354, DALLAS, TX 75265-0354
PO BOX 650355, DALLAS, TX 75265-0355
PO BOX 650356, DALLAS, TX 75265-0356
PO BOX 650357, DALLAS, TX 75265-0357
PO BOX 650358, DALLAS, TX 75265-0358
PO BOX 650359, DALLAS, TX 75265-0359
PO BOX 650360, DALLAS, TX 75265-0360
PO BOX 650361, DALLAS, TX 75265-0361
PO BOX 650362, DALLAS, TX 75265-0362
PO BOX 650363, DALLAS, TX 75265-0363
PO BOX 650364, DALLAS, TX 75265-0364
PO BOX 650365, DALLAS, TX 75265-0365
PO BOX 650366, DALLAS, TX 75265-0366
PO BOX 650367, DALLAS, TX 75265-0367
PO BOX 650368, DALLAS, TX 75265-0368
PO BOX 650369, DALLAS, TX 75265-0369
PO BOX 650370, DALLAS, TX 75265-0370
PO BOX 650371, DALLAS, TX 75265-0371
PO BOX 650372, DALLAS, TX 75265-0372
PO BOX 650373, DALLAS, TX 75265-0373
PO BOX 650374, DALLAS, TX 75265-0374
PO BOX 650375, DALLAS, TX 75265-0375
PO BOX 650376, DALLAS, TX 75265-0376
PO BOX 650377, DALLAS, TX 75265-0377
PO BOX 650378, DALLAS, TX 75265-0378
PO BOX 650379, DALLAS, TX 75265-0379
PO BOX 650380, DALLAS, TX 75265-0380
PO BOX 650381, DALLAS, TX 75265-0381
PO BOX 650382, DALLAS, TX 75265-0382
PO BOX 650383, DALLAS, TX 75265-0383
PO BOX 650384, DALLAS, TX 75265-0384
PO BOX 650385, DALLAS, TX 75265-0385
PO BOX 650386, DALLAS, TX 75265-0386
PO BOX 650387, DALLAS, TX 75265-0387
PO BOX 650388, DALLAS, TX 75265-0388
PO BOX 650389, DALLAS, TX 75265-0389
PO BOX 650390, DALLAS, TX 75265-0390
PO BOX 650391, DALLAS, TX 75265-0391
PO BOX 650392, DALLAS, TX 75265-0392
PO BOX 650393, DALLAS, TX 75265-0393
PO BOX 650394, DALLAS, TX 75265-0394
PO BOX 650395, DALLAS, TX 75265-0395
PO BOX 650396, DALLAS, TX 75265-0396
PO BOX 650397, DALLAS, TX 75265-0397
PO BOX 650398, DALLAS, TX 75265-0398
PO BOX 650399, DALLAS, TX 75265-0399
PO BOX 650400, DALLAS, TX 75265-0400
PO BOX 650401, DALLAS, TX 75265-0401
PO BOX 650402, DALLAS, TX 75265-0402
PO BOX 650403, DALLAS, TX 75265-0403
PO BOX 650404, DALLAS, TX 75265-0404
PO BOX 650405, DALLAS, TX 75265-0405
PO BOX 650406, DALLAS, TX 75265-0406
PO BOX 650407, DALLAS, TX 75265-0407
PO BOX 650408, DALLAS, TX 75265-0408
PO BOX 650409, DALLAS, TX 75265-0409
PO BOX 650410, DALLAS, TX 75265-0410
PO BOX 650411, DALLAS, TX 75265-0411
PO BOX 650412, DALLAS, TX 75265-0412
PO BOX 650413, DALLAS, TX 75265-0413
PO BOX 650414, DALLAS, TX 75265-0414
PO BOX 650415, DALLAS, TX 75265-0415
PO BOX 650416, DALLAS, TX 75265-0416
PO BOX 650417, DALLAS, TX 75265-0417
PO BOX 650418, DALLAS, TX 75265-0418
PO BOX 650419, DALLAS, TX 75265-0419
PO BOX 650420, DALLAS, TX 75265-0420
PO BOX 650421, DALLAS, TX 75265-0421
PO BOX 650422, DALLAS, TX 75265-0422
PO BOX 650423, DALLAS, TX 75265-0423
PO BOX 650424, DALLAS, TX 75265-0424
PO BOX 650425, DALLAS, TX 75265-0425
PO BOX 650426, DALLAS, TX 75265-0426
PO BOX 650427, DALLAS, TX 75265-0427
PO BOX 650428, DALLAS, TX 75265-0428
PO BOX 650429, DALLAS, TX 75265-0429
PO BOX 650430, DALLAS, TX 75265-0430
PO BOX 650431, DALLAS, TX 75265-0431
PO BOX 650432, DALLAS, TX 75265-0432
PO BOX 650433, DALLAS, TX 75265-0433
PO BOX 650434, DALLAS, TX 75265-0434
PO BOX 650435, DALLAS, TX 75265-0435
PO BOX 650436, DALLAS, TX 75265-0436
PO BOX 650437, DALLAS, TX 75265-0437
PO BOX 650438, DALLAS, TX 75265-0438
PO BOX 650439, DALLAS, TX 75265-0439
PO BOX 650440, DALLAS, TX 75265-0440
PO BOX 650441, DALLAS, TX 75265-0441
PO BOX 650442, DALLAS, TX 75265-0442
PO BOX 650443, DALLAS, TX 75265-0443
PO BOX 650444, DALLAS, TX 75265-0444
PO BOX 650445, DALLAS, TX 75265-0445
PO BOX 650446, DALLAS, TX 75265-0446