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 48100, NEWARK, NJ 07101-8300
PO BOX 48101, NEWARK, NJ 07101-8301
PO BOX 48102, NEWARK, NJ 07101-8302
PO BOX 48103, NEWARK, NJ 07101-8303
PO BOX 48104, NEWARK, NJ 07101-8304
PO BOX 48105, NEWARK, NJ 07101-8305
PO BOX 48106, NEWARK, NJ 07101-8306
PO BOX 48107, NEWARK, NJ 07101-8307
PO BOX 48108, NEWARK, NJ 07101-8308
PO BOX 48109, NEWARK, NJ 07101-8309
PO BOX 48110, NEWARK, NJ 07101-8310
PO BOX 48111, NEWARK, NJ 07101-8311
PO BOX 48112, NEWARK, NJ 07101-8312
PO BOX 48113, NEWARK, NJ 07101-8313
PO BOX 48114, NEWARK, NJ 07101-8314
PO BOX 48115, NEWARK, NJ 07101-8315
PO BOX 48116, NEWARK, NJ 07101-8316
PO BOX 48117, NEWARK, NJ 07101-8317
PO BOX 48118, NEWARK, NJ 07101-8318
PO BOX 48119, NEWARK, NJ 07101-8319
PO BOX 48120, NEWARK, NJ 07101-8320
PO BOX 48121, NEWARK, NJ 07101-8321
PO BOX 48122, NEWARK, NJ 07101-8322
PO BOX 48123, NEWARK, NJ 07101-8323
PO BOX 48124, NEWARK, NJ 07101-8324
PO BOX 48125, NEWARK, NJ 07101-8325
PO BOX 48126, NEWARK, NJ 07101-8326
PO BOX 48127, NEWARK, NJ 07101-8327
PO BOX 48128, NEWARK, NJ 07101-8328
PO BOX 48129, NEWARK, NJ 07101-8329
PO BOX 48130, NEWARK, NJ 07101-8330
PO BOX 48131, NEWARK, NJ 07101-8331
PO BOX 48132, NEWARK, NJ 07101-8332
PO BOX 48133, NEWARK, NJ 07101-8333
PO BOX 48134, NEWARK, NJ 07101-8334
PO BOX 48135, NEWARK, NJ 07101-8335
PO BOX 48136, NEWARK, NJ 07101-8336
PO BOX 48137, NEWARK, NJ 07101-8337
PO BOX 48138, NEWARK, NJ 07101-8338
PO BOX 48139, NEWARK, NJ 07101-8339
PO BOX 48140, NEWARK, NJ 07101-8340
PO BOX 48141, NEWARK, NJ 07101-8341
PO BOX 48142, NEWARK, NJ 07101-8342
PO BOX 48143, NEWARK, NJ 07101-8343
PO BOX 48144, NEWARK, NJ 07101-8344
PO BOX 48145, NEWARK, NJ 07101-8345
PO BOX 48146, NEWARK, NJ 07101-8346
PO BOX 48147, NEWARK, NJ 07101-8347
PO BOX 48148, NEWARK, NJ 07101-8348
PO BOX 48149, NEWARK, NJ 07101-8349
PO BOX 48150, NEWARK, NJ 07101-8350
PO BOX 48151, NEWARK, NJ 07101-8351
PO BOX 48152, NEWARK, NJ 07101-8352
PO BOX 48153, NEWARK, NJ 07101-8353
PO BOX 48154, NEWARK, NJ 07101-8354
PO BOX 48155, NEWARK, NJ 07101-8355
PO BOX 48156, NEWARK, NJ 07101-8356
PO BOX 48157, NEWARK, NJ 07101-8357
PO BOX 48158, NEWARK, NJ 07101-8358
PO BOX 48159, NEWARK, NJ 07101-8359
PO BOX 48160, NEWARK, NJ 07101-8360
PO BOX 48161, NEWARK, NJ 07101-8361
PO BOX 48162, NEWARK, NJ 07101-8362
PO BOX 48163, NEWARK, NJ 07101-8363
PO BOX 48164, NEWARK, NJ 07101-8364
PO BOX 48165, NEWARK, NJ 07101-8365
PO BOX 48166, NEWARK, NJ 07101-8366
PO BOX 48167, NEWARK, NJ 07101-8367
PO BOX 48168, NEWARK, NJ 07101-8368
PO BOX 48169, NEWARK, NJ 07101-8369
PO BOX 48170, NEWARK, NJ 07101-8370
PO BOX 48171, NEWARK, NJ 07101-8371
PO BOX 48172, NEWARK, NJ 07101-8372
PO BOX 48173, NEWARK, NJ 07101-8373
PO BOX 48174, NEWARK, NJ 07101-8374
PO BOX 48175, NEWARK, NJ 07101-8375
PO BOX 48176, NEWARK, NJ 07101-8376
PO BOX 48177, NEWARK, NJ 07101-8377
PO BOX 48178, NEWARK, NJ 07101-8378
PO BOX 48179, NEWARK, NJ 07101-8379
PO BOX 48180, NEWARK, NJ 07101-8380
PO BOX 48181, NEWARK, NJ 07101-8381
PO BOX 48182, NEWARK, NJ 07101-8382
PO BOX 48183, NEWARK, NJ 07101-8383
PO BOX 48184, NEWARK, NJ 07101-8384
PO BOX 48185, NEWARK, NJ 07101-8385
PO BOX 48186, NEWARK, NJ 07101-8386
PO BOX 48187, NEWARK, NJ 07101-8387
PO BOX 48188, NEWARK, NJ 07101-8388
PO BOX 48189, NEWARK, NJ 07101-8389
PO BOX 48190, NEWARK, NJ 07101-8390
PO BOX 48191, NEWARK, NJ 07101-8391
PO BOX 48192, NEWARK, NJ 07101-8392
PO BOX 48193, NEWARK, NJ 07101-8393
PO BOX 48194, NEWARK, NJ 07101-8394
PO BOX 48195, NEWARK, NJ 07101-8395
PO BOX 48196, NEWARK, NJ 07101-8396
PO BOX 48197, NEWARK, NJ 07101-8397
PO BOX 48198, NEWARK, NJ 07101-8398
PO BOX 48199, NEWARK, NJ 07101-8399
PO BOX 48200, NEWARK, NJ 07101-8400
PO BOX 48201, NEWARK, NJ 07101-8401
PO BOX 48202, NEWARK, NJ 07101-8402
PO BOX 48203, NEWARK, NJ 07101-8403
PO BOX 48204, NEWARK, NJ 07101-8404
PO BOX 48205, NEWARK, NJ 07101-8405
PO BOX 48206, NEWARK, NJ 07101-8406
PO BOX 48207, NEWARK, NJ 07101-8407
PO BOX 48208, NEWARK, NJ 07101-8408
PO BOX 48209, NEWARK, NJ 07101-8409
PO BOX 48210, NEWARK, NJ 07101-8410
PO BOX 48211, NEWARK, NJ 07101-8411
PO BOX 48212, NEWARK, NJ 07101-8412
PO BOX 48213, NEWARK, NJ 07101-8413
PO BOX 48214, NEWARK, NJ 07101-8414
PO BOX 48215, NEWARK, NJ 07101-8415
PO BOX 48216, NEWARK, NJ 07101-8416
PO BOX 48217, NEWARK, NJ 07101-8417
PO BOX 48218, NEWARK, NJ 07101-8418
PO BOX 48219, NEWARK, NJ 07101-8419
PO BOX 48220, NEWARK, NJ 07101-8420
PO BOX 48221, NEWARK, NJ 07101-8421
PO BOX 48222, NEWARK, NJ 07101-8422
PO BOX 48223, NEWARK, NJ 07101-8423
PO BOX 48224, NEWARK, NJ 07101-8424
PO BOX 48225, NEWARK, NJ 07101-8425
PO BOX 48226, NEWARK, NJ 07101-8426
PO BOX 48227, NEWARK, NJ 07101-8427
PO BOX 48228, NEWARK, NJ 07101-8428
PO BOX 48229, NEWARK, NJ 07101-8429
PO BOX 48230, NEWARK, NJ 07101-8430
PO BOX 48231, NEWARK, NJ 07101-8431
PO BOX 48232, NEWARK, NJ 07101-8432
PO BOX 48233, NEWARK, NJ 07101-8433
PO BOX 48234, NEWARK, NJ 07101-8434
PO BOX 48235, NEWARK, NJ 07101-8435
PO BOX 48236, NEWARK, NJ 07101-8436
PO BOX 48237, NEWARK, NJ 07101-8437
PO BOX 48238, NEWARK, NJ 07101-8438
PO BOX 48239, NEWARK, NJ 07101-8439
PO BOX 48240, NEWARK, NJ 07101-8440
PO BOX 48241, NEWARK, NJ 07101-8441
PO BOX 48242, NEWARK, NJ 07101-8442
PO BOX 48243, NEWARK, NJ 07101-8443
PO BOX 48244, NEWARK, NJ 07101-8444
PO BOX 48245, NEWARK, NJ 07101-8445
PO BOX 48246, NEWARK, NJ 07101-8446
PO BOX 48247, NEWARK, NJ 07101-8447
PO BOX 48248, NEWARK, NJ 07101-8448
PO BOX 48249, NEWARK, NJ 07101-8449
PO BOX 48250, NEWARK, NJ 07101-8450
PO BOX 48251, NEWARK, NJ 07101-8451
PO BOX 48252, NEWARK, NJ 07101-8452
PO BOX 48253, NEWARK, NJ 07101-8453
PO BOX 48254, NEWARK, NJ 07101-8454
PO BOX 48255, NEWARK, NJ 07101-8455
PO BOX 48256, NEWARK, NJ 07101-8456
PO BOX 48257, NEWARK, NJ 07101-8457
PO BOX 48258, NEWARK, NJ 07101-8458
PO BOX 48259, NEWARK, NJ 07101-8459
PO BOX 48260, NEWARK, NJ 07101-8460
PO BOX 48261, NEWARK, NJ 07101-8461
PO BOX 48262, NEWARK, NJ 07101-8462
PO BOX 48263, NEWARK, NJ 07101-8463
PO BOX 48264, NEWARK, NJ 07101-8464
PO BOX 48265, NEWARK, NJ 07101-8465
PO BOX 48266, NEWARK, NJ 07101-8466
PO BOX 48267, NEWARK, NJ 07101-8467
PO BOX 48268, NEWARK, NJ 07101-8468
PO BOX 48269, NEWARK, NJ 07101-8469
PO BOX 48270, NEWARK, NJ 07101-8470
PO BOX 48271, NEWARK, NJ 07101-8471
PO BOX 48272, NEWARK, NJ 07101-8472
PO BOX 48273, NEWARK, NJ 07101-8473
PO BOX 48274, NEWARK, NJ 07101-8474
PO BOX 48275, NEWARK, NJ 07101-8475
PO BOX 48276, NEWARK, NJ 07101-8476
PO BOX 48277, NEWARK, NJ 07101-8477
PO BOX 48278, NEWARK, NJ 07101-8478
PO BOX 48279, NEWARK, NJ 07101-8479
PO BOX 48280, NEWARK, NJ 07101-8480
PO BOX 48281, NEWARK, NJ 07101-8481
PO BOX 48282, NEWARK, NJ 07101-8482
PO BOX 48283, NEWARK, NJ 07101-8483
PO BOX 48284, NEWARK, NJ 07101-8484
PO BOX 48285, NEWARK, NJ 07101-8485
PO BOX 48286, NEWARK, NJ 07101-8486
PO BOX 48287, NEWARK, NJ 07101-8487
PO BOX 48288, NEWARK, NJ 07101-8488
PO BOX 48289, NEWARK, NJ 07101-8489
PO BOX 48290, NEWARK, NJ 07101-8490
PO BOX 48291, NEWARK, NJ 07101-8491
PO BOX 48292, NEWARK, NJ 07101-8492
PO BOX 48293, NEWARK, NJ 07101-8493
PO BOX 48294, NEWARK, NJ 07101-8494
PO BOX 48295, NEWARK, NJ 07101-8495
PO BOX 48296, NEWARK, NJ 07101-8496
PO BOX 48297, NEWARK, NJ 07101-8497
PO BOX 48298, NEWARK, NJ 07101-8498
PO BOX 48299, NEWARK, NJ 07101-8499
PO BOX 48300, NEWARK, NJ 07101-8500
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