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 2451, CLIFTON, NJ 07015-2451
PO BOX 2452, CLIFTON, NJ 07015-2452
PO BOX 2453, CLIFTON, NJ 07015-2453
PO BOX 2454, CLIFTON, NJ 07015-2454
PO BOX 2455, CLIFTON, NJ 07015-2455
PO BOX 2456, CLIFTON, NJ 07015-2456
PO BOX 2457, CLIFTON, NJ 07015-2457
PO BOX 2458, CLIFTON, NJ 07015-2458
PO BOX 2459, CLIFTON, NJ 07015-2459
PO BOX 2460, CLIFTON, NJ 07015-2460
PO BOX 2461, CLIFTON, NJ 07015-2461
PO BOX 2462, CLIFTON, NJ 07015-2462
PO BOX 2463, CLIFTON, NJ 07015-2463
PO BOX 2464, CLIFTON, NJ 07015-2464
PO BOX 2465, CLIFTON, NJ 07015-2465
PO BOX 2466, CLIFTON, NJ 07015-2466
PO BOX 2467, CLIFTON, NJ 07015-2467
PO BOX 2468, CLIFTON, NJ 07015-2468
PO BOX 2469, CLIFTON, NJ 07015-2469
PO BOX 2470, CLIFTON, NJ 07015-2470
PO BOX 2471, CLIFTON, NJ 07015-2471
PO BOX 2472, CLIFTON, NJ 07015-2472
PO BOX 2473, CLIFTON, NJ 07015-2473
PO BOX 2474, CLIFTON, NJ 07015-2474
PO BOX 2475, CLIFTON, NJ 07015-2475
PO BOX 2476, CLIFTON, NJ 07015-2476
PO BOX 2477, CLIFTON, NJ 07015-2477
PO BOX 2478, CLIFTON, NJ 07015-2478
PO BOX 2479, CLIFTON, NJ 07015-2479
PO BOX 2480, CLIFTON, NJ 07015-2480
PO BOX 2481, CLIFTON, NJ 07015-2481
PO BOX 2482, CLIFTON, NJ 07015-2482
PO BOX 2483, CLIFTON, NJ 07015-2483
PO BOX 2484, CLIFTON, NJ 07015-2484
PO BOX 2485, CLIFTON, NJ 07015-2485
PO BOX 2486, CLIFTON, NJ 07015-2486
PO BOX 2487, CLIFTON, NJ 07015-2487
PO BOX 2488, CLIFTON, NJ 07015-2488
PO BOX 2489, CLIFTON, NJ 07015-2489
PO BOX 2490, CLIFTON, NJ 07015-2490
PO BOX 2491, CLIFTON, NJ 07015-2491
PO BOX 2492, CLIFTON, NJ 07015-2492
PO BOX 2493, CLIFTON, NJ 07015-2493
PO BOX 2494, CLIFTON, NJ 07015-2494
PO BOX 2495, CLIFTON, NJ 07015-2495
PO BOX 2496, CLIFTON, NJ 07015-2496
PO BOX 2497, CLIFTON, NJ 07015-2497
PO BOX 2498, CLIFTON, NJ 07015-2498
PO BOX 2499, CLIFTON, NJ 07015-2499
PO BOX 2500, CLIFTON, NJ 07015-2500
PO BOX 2501, CLIFTON, NJ 07015-2501
PO BOX 2502, CLIFTON, NJ 07015-2502
PO BOX 2503, CLIFTON, NJ 07015-2503
PO BOX 2504, CLIFTON, NJ 07015-2504
PO BOX 2505, CLIFTON, NJ 07015-2505
PO BOX 2506, CLIFTON, NJ 07015-2506
PO BOX 2507, CLIFTON, NJ 07015-2507
PO BOX 2508, CLIFTON, NJ 07015-2508
PO BOX 2509, CLIFTON, NJ 07015-2509
PO BOX 2510, CLIFTON, NJ 07015-2510
PO BOX 2511, CLIFTON, NJ 07015-2511
PO BOX 2512, CLIFTON, NJ 07015-2512
PO BOX 2513, CLIFTON, NJ 07015-2513
PO BOX 2514, CLIFTON, NJ 07015-2514
PO BOX 2515, CLIFTON, NJ 07015-2515
PO BOX 2516, CLIFTON, NJ 07015-2516
PO BOX 2517, CLIFTON, NJ 07015-2517
PO BOX 2518, CLIFTON, NJ 07015-2518
PO BOX 2519, CLIFTON, NJ 07015-2519
PO BOX 2520, CLIFTON, NJ 07015-2520
PO BOX 2521, CLIFTON, NJ 07015-2521
PO BOX 2522, CLIFTON, NJ 07015-2522
PO BOX 2523, CLIFTON, NJ 07015-2523
PO BOX 2524, CLIFTON, NJ 07015-2524
PO BOX 2525, CLIFTON, NJ 07015-2525
PO BOX 2526, CLIFTON, NJ 07015-2526
PO BOX 2527, CLIFTON, NJ 07015-2527
PO BOX 2528, CLIFTON, NJ 07015-2528
PO BOX 2529, CLIFTON, NJ 07015-2529
PO BOX 2530, CLIFTON, NJ 07015-2530
PO BOX 2531, CLIFTON, NJ 07015-2531
PO BOX 2532, CLIFTON, NJ 07015-2532
PO BOX 2533, CLIFTON, NJ 07015-2533
PO BOX 2534, CLIFTON, NJ 07015-2534
PO BOX 2535, CLIFTON, NJ 07015-2535
PO BOX 2536, CLIFTON, NJ 07015-2536
PO BOX 2537, CLIFTON, NJ 07015-2537
PO BOX 2538, CLIFTON, NJ 07015-2538
PO BOX 2539, CLIFTON, NJ 07015-2539
PO BOX 2540, CLIFTON, NJ 07015-2540
PO BOX 2541, CLIFTON, NJ 07015-2541
PO BOX 2542, CLIFTON, NJ 07015-2542
PO BOX 2543, CLIFTON, NJ 07015-2543
PO BOX 2544, CLIFTON, NJ 07015-2544
PO BOX 2545, CLIFTON, NJ 07015-2545
PO BOX 2546, CLIFTON, NJ 07015-2546
PO BOX 2547, CLIFTON, NJ 07015-2547
PO BOX 2548, CLIFTON, NJ 07015-2548
PO BOX 2549, CLIFTON, NJ 07015-2549
PO BOX 2550, CLIFTON, NJ 07015-2550
PO BOX 2551, CLIFTON, NJ 07015-2551
PO BOX 2552, CLIFTON, NJ 07015-2552
PO BOX 2553, CLIFTON, NJ 07015-2553
PO BOX 2554, CLIFTON, NJ 07015-2554
PO BOX 2555, CLIFTON, NJ 07015-2555
PO BOX 2556, CLIFTON, NJ 07015-2556
PO BOX 2557, CLIFTON, NJ 07015-2557
PO BOX 2558, CLIFTON, NJ 07015-2558
PO BOX 2559, CLIFTON, NJ 07015-2559
PO BOX 2560, CLIFTON, NJ 07015-2560
PO BOX 2561, CLIFTON, NJ 07015-2561
PO BOX 2562, CLIFTON, NJ 07015-2562
PO BOX 2563, CLIFTON, NJ 07015-2563
PO BOX 2564, CLIFTON, NJ 07015-2564
PO BOX 2565, CLIFTON, NJ 07015-2565
PO BOX 2566, CLIFTON, NJ 07015-2566
PO BOX 2567, CLIFTON, NJ 07015-2567
PO BOX 2568, CLIFTON, NJ 07015-2568
PO BOX 2569, CLIFTON, NJ 07015-2569
PO BOX 2570, CLIFTON, NJ 07015-2570
PO BOX 2571, CLIFTON, NJ 07015-2571
PO BOX 2572, CLIFTON, NJ 07015-2572
PO BOX 2573, CLIFTON, NJ 07015-2573
PO BOX 2574, CLIFTON, NJ 07015-2574
PO BOX 2575, CLIFTON, NJ 07015-2575
PO BOX 2576, CLIFTON, NJ 07015-2576
PO BOX 2577, CLIFTON, NJ 07015-2577
PO BOX 2578, CLIFTON, NJ 07015-2578
PO BOX 2579, CLIFTON, NJ 07015-2579
PO BOX 2580, CLIFTON, NJ 07015-2580
PO BOX 2581, CLIFTON, NJ 07015-2581
PO BOX 2582, CLIFTON, NJ 07015-2582
PO BOX 2583, CLIFTON, NJ 07015-2583
PO BOX 2584, CLIFTON, NJ 07015-2584
PO BOX 2585, CLIFTON, NJ 07015-2585
PO BOX 2586, CLIFTON, NJ 07015-2586
PO BOX 2587, CLIFTON, NJ 07015-2587
PO BOX 2588, CLIFTON, NJ 07015-2588
PO BOX 2589, CLIFTON, NJ 07015-2589
PO BOX 2590, CLIFTON, NJ 07015-2590
PO BOX 2591, CLIFTON, NJ 07015-2591
PO BOX 2592, CLIFTON, NJ 07015-2592
PO BOX 2593, CLIFTON, NJ 07015-2593
PO BOX 2594, CLIFTON, NJ 07015-2594
PO BOX 2595, CLIFTON, NJ 07015-2595
PO BOX 2596, CLIFTON, NJ 07015-2596
PO BOX 2597, CLIFTON, NJ 07015-2597
PO BOX 2598, CLIFTON, NJ 07015-2598
PO BOX 2599, CLIFTON, NJ 07015-2599
PO BOX 2600, CLIFTON, NJ 07015-2600
PO BOX 2601, CLIFTON, NJ 07015-2601
PO BOX 2602, CLIFTON, NJ 07015-2602
PO BOX 2603, CLIFTON, NJ 07015-2603
PO BOX 2604, CLIFTON, NJ 07015-2604
PO BOX 2605, CLIFTON, NJ 07015-2605
PO BOX 2606, CLIFTON, NJ 07015-2606
PO BOX 2607, CLIFTON, NJ 07015-2607
PO BOX 2608, CLIFTON, NJ 07015-2608
PO BOX 2609, CLIFTON, NJ 07015-2609
PO BOX 2610, CLIFTON, NJ 07015-2610
PO BOX 2611, CLIFTON, NJ 07015-2611
PO BOX 2612, CLIFTON, NJ 07015-2612
PO BOX 2613, CLIFTON, NJ 07015-2613
PO BOX 2614, CLIFTON, NJ 07015-2614
PO BOX 2615, CLIFTON, NJ 07015-2615
PO BOX 2616, CLIFTON, NJ 07015-2616
PO BOX 2617, CLIFTON, NJ 07015-2617
PO BOX 2618, CLIFTON, NJ 07015-2618
PO BOX 2619, CLIFTON, NJ 07015-2619
PO BOX 2620, CLIFTON, NJ 07015-2620
PO BOX 2621, CLIFTON, NJ 07015-2621
PO BOX 2622, CLIFTON, NJ 07015-2622
PO BOX 2623, CLIFTON, NJ 07015-2623
PO BOX 2624, CLIFTON, NJ 07015-2624
PO BOX 2625, CLIFTON, NJ 07015-2625
PO BOX 2626, CLIFTON, NJ 07015-2626
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