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 1351, WILMINGTON, NC 28402-1351
PO BOX 1352, WILMINGTON, NC 28402-1352
PO BOX 1353, WILMINGTON, NC 28402-1353
PO BOX 1354, WILMINGTON, NC 28402-1354
PO BOX 1355, WILMINGTON, NC 28402-1355
PO BOX 1356, WILMINGTON, NC 28402-1356
PO BOX 1357, WILMINGTON, NC 28402-1357
PO BOX 1358, WILMINGTON, NC 28402-1358
PO BOX 1359, WILMINGTON, NC 28402-1359
PO BOX 1360, WILMINGTON, NC 28402-1360
PO BOX 1361, WILMINGTON, NC 28402-1361
PO BOX 1362, WILMINGTON, NC 28402-1362
PO BOX 1363, WILMINGTON, NC 28402-1363
PO BOX 1364, WILMINGTON, NC 28402-1364
PO BOX 1365, WILMINGTON, NC 28402-1365
PO BOX 1366, WILMINGTON, NC 28402-1366
PO BOX 1367, WILMINGTON, NC 28402-1367
PO BOX 1368, WILMINGTON, NC 28402-1368
PO BOX 1369, WILMINGTON, NC 28402-1369
PO BOX 1370, WILMINGTON, NC 28402-1370
PO BOX 1371, WILMINGTON, NC 28402-1371
PO BOX 1372, WILMINGTON, NC 28402-1372
PO BOX 1373, WILMINGTON, NC 28402-1373
PO BOX 1374, WILMINGTON, NC 28402-1374
PO BOX 1375, WILMINGTON, NC 28402-1375
PO BOX 1376, WILMINGTON, NC 28402-1376
PO BOX 1377, WILMINGTON, NC 28402-1377
PO BOX 1378, WILMINGTON, NC 28402-1378
PO BOX 1379, WILMINGTON, NC 28402-1379
PO BOX 1380, WILMINGTON, NC 28402-1380
PO BOX 1381, WILMINGTON, NC 28402-1381
PO BOX 1382, WILMINGTON, NC 28402-1382
PO BOX 1383, WILMINGTON, NC 28402-1383
PO BOX 1384, WILMINGTON, NC 28402-1384
PO BOX 1385, WILMINGTON, NC 28402-1385
PO BOX 1386, WILMINGTON, NC 28402-1386
PO BOX 1387, WILMINGTON, NC 28402-1387
PO BOX 1388, WILMINGTON, NC 28402-1388
PO BOX 1389, WILMINGTON, NC 28402-1389
PO BOX 1390, WILMINGTON, NC 28402-1390
PO BOX 1391, WILMINGTON, NC 28402-1391
PO BOX 1392, WILMINGTON, NC 28402-1392
PO BOX 1393, WILMINGTON, NC 28402-1393
PO BOX 1394, WILMINGTON, NC 28402-1394
PO BOX 1395, WILMINGTON, NC 28402-1395
PO BOX 1396, WILMINGTON, NC 28402-1396
PO BOX 1397, WILMINGTON, NC 28402-1397
PO BOX 1398, WILMINGTON, NC 28402-1398
PO BOX 1399, WILMINGTON, NC 28402-1399
PO BOX 1400, WILMINGTON, NC 28402-1400
PO BOX 1401, WILMINGTON, NC 28402-1401
PO BOX 1402, WILMINGTON, NC 28402-1402
PO BOX 1403, WILMINGTON, NC 28402-1403
PO BOX 1404, WILMINGTON, NC 28402-1404
PO BOX 1405, WILMINGTON, NC 28402-1405
PO BOX 1406, WILMINGTON, NC 28402-1406
PO BOX 1407, WILMINGTON, NC 28402-1407
PO BOX 1408, WILMINGTON, NC 28402-1408
PO BOX 1409, WILMINGTON, NC 28402-1409
PO BOX 1410, WILMINGTON, NC 28402-1410
PO BOX 1411, WILMINGTON, NC 28402-1411
PO BOX 1412, WILMINGTON, NC 28402-1412
PO BOX 1413, WILMINGTON, NC 28402-1413
PO BOX 1414, WILMINGTON, NC 28402-1414
PO BOX 1415, WILMINGTON, NC 28402-1415
PO BOX 1416, WILMINGTON, NC 28402-1416
PO BOX 1417, WILMINGTON, NC 28402-1417
PO BOX 1418, WILMINGTON, NC 28402-1418
PO BOX 1419, WILMINGTON, NC 28402-1419
PO BOX 1420, WILMINGTON, NC 28402-1420
PO BOX 1421, WILMINGTON, NC 28402-1421
PO BOX 1422, WILMINGTON, NC 28402-1422
PO BOX 1423, WILMINGTON, NC 28402-1423
PO BOX 1424, WILMINGTON, NC 28402-1424
PO BOX 1425, WILMINGTON, NC 28402-1425
PO BOX 1426, WILMINGTON, NC 28402-1426
PO BOX 1427, WILMINGTON, NC 28402-1427
PO BOX 1428, WILMINGTON, NC 28402-1428
PO BOX 1429, WILMINGTON, NC 28402-1429
PO BOX 1430, WILMINGTON, NC 28402-1430
PO BOX 1431, WILMINGTON, NC 28402-1431
PO BOX 1432, WILMINGTON, NC 28402-1432
PO BOX 1433, WILMINGTON, NC 28402-1433
PO BOX 1434, WILMINGTON, NC 28402-1434
PO BOX 1435, WILMINGTON, NC 28402-1435
PO BOX 1436, WILMINGTON, NC 28402-1436
PO BOX 1437, WILMINGTON, NC 28402-1437
PO BOX 1438, WILMINGTON, NC 28402-1438
PO BOX 1439, WILMINGTON, NC 28402-1439
PO BOX 1440, WILMINGTON, NC 28402-1440
PO BOX 1441, WILMINGTON, NC 28402-1441
PO BOX 1442, WILMINGTON, NC 28402-1442
PO BOX 1443, WILMINGTON, NC 28402-1443
PO BOX 1444, WILMINGTON, NC 28402-1444
PO BOX 1445, WILMINGTON, NC 28402-1445
PO BOX 1446, WILMINGTON, NC 28402-1446
PO BOX 1447, WILMINGTON, NC 28402-1447
PO BOX 1448, WILMINGTON, NC 28402-1448
PO BOX 1449, WILMINGTON, NC 28402-1449
PO BOX 1450, WILMINGTON, NC 28402-1450
PO BOX 1451, WILMINGTON, NC 28402-1451
PO BOX 1452, WILMINGTON, NC 28402-1452
PO BOX 1453, WILMINGTON, NC 28402-1453
PO BOX 1454, WILMINGTON, NC 28402-1454
PO BOX 1455, WILMINGTON, NC 28402-1455
PO BOX 1456, WILMINGTON, NC 28402-1456
PO BOX 1457, WILMINGTON, NC 28402-1457
PO BOX 1458, WILMINGTON, NC 28402-1458
PO BOX 1459, WILMINGTON, NC 28402-1459
PO BOX 1460, WILMINGTON, NC 28402-1460
PO BOX 1461, WILMINGTON, NC 28402-1461
PO BOX 1462, WILMINGTON, NC 28402-1462
PO BOX 1463, WILMINGTON, NC 28402-1463
PO BOX 1464, WILMINGTON, NC 28402-1464
PO BOX 1465, WILMINGTON, NC 28402-1465
PO BOX 1466, WILMINGTON, NC 28402-1466
PO BOX 1467, WILMINGTON, NC 28402-1467
PO BOX 1468, WILMINGTON, NC 28402-1468
PO BOX 1469, WILMINGTON, NC 28402-1469
PO BOX 1470, WILMINGTON, NC 28402-1470
PO BOX 1471, WILMINGTON, NC 28402-1471
PO BOX 1472, WILMINGTON, NC 28402-1472
PO BOX 1473, WILMINGTON, NC 28402-1473
PO BOX 1474, WILMINGTON, NC 28402-1474
PO BOX 1475, WILMINGTON, NC 28402-1475
PO BOX 1476, WILMINGTON, NC 28402-1476
PO BOX 1477, WILMINGTON, NC 28402-1477
PO BOX 1478, WILMINGTON, NC 28402-1478
PO BOX 1479, WILMINGTON, NC 28402-1479
PO BOX 1480, WILMINGTON, NC 28402-1480
PO BOX 1481, WILMINGTON, NC 28402-1481
PO BOX 1482, WILMINGTON, NC 28402-1482
PO BOX 1483, WILMINGTON, NC 28402-1483
PO BOX 1484, WILMINGTON, NC 28402-1484
PO BOX 1485, WILMINGTON, NC 28402-1485
PO BOX 1486, WILMINGTON, NC 28402-1486
PO BOX 1487, WILMINGTON, NC 28402-1487
PO BOX 1488, WILMINGTON, NC 28402-1488
PO BOX 1489, WILMINGTON, NC 28402-1489
PO BOX 1490, WILMINGTON, NC 28402-1490
PO BOX 1491, WILMINGTON, NC 28402-1491
PO BOX 1492, WILMINGTON, NC 28402-1492
PO BOX 1493, WILMINGTON, NC 28402-1493
PO BOX 1494, WILMINGTON, NC 28402-1494
PO BOX 1495, WILMINGTON, NC 28402-1495
PO BOX 1496, WILMINGTON, NC 28402-1496
PO BOX 1497, WILMINGTON, NC 28402-1497
PO BOX 1498, WILMINGTON, NC 28402-1498
PO BOX 1499, WILMINGTON, NC 28402-1499
PO BOX 1500, WILMINGTON, NC 28402-1500
PO BOX 1501, WILMINGTON, NC 28402-1501
PO BOX 1502, WILMINGTON, NC 28402-1502
PO BOX 1503, WILMINGTON, NC 28402-1503
PO BOX 1504, WILMINGTON, NC 28402-1504
PO BOX 1505, WILMINGTON, NC 28402-1505
PO BOX 1506, WILMINGTON, NC 28402-1506
PO BOX 1507, WILMINGTON, NC 28402-1507
PO BOX 1508, WILMINGTON, NC 28402-1508
PO BOX 1509, WILMINGTON, NC 28402-1509
PO BOX 1510, WILMINGTON, NC 28402-1510
PO BOX 1511, WILMINGTON, NC 28402-1511
PO BOX 1512, WILMINGTON, NC 28402-1512
PO BOX 1513, WILMINGTON, NC 28402-1513
PO BOX 1514, WILMINGTON, NC 28402-1514
PO BOX 1515, WILMINGTON, NC 28402-1515
PO BOX 1516, WILMINGTON, NC 28402-1516
PO BOX 1517, WILMINGTON, NC 28402-1517
PO BOX 1518, WILMINGTON, NC 28402-1518
PO BOX 1519, WILMINGTON, NC 28402-1519
PO BOX 1520, WILMINGTON, NC 28402-1520
PO BOX 1521, WILMINGTON, NC 28402-1521
PO BOX 1522, WILMINGTON, NC 28402-1522
PO BOX 1523, WILMINGTON, NC 28402-1523
PO BOX 1524, WILMINGTON, NC 28402-1524
PO BOX 1525, WILMINGTON, NC 28402-1525
PO BOX 1526, WILMINGTON, NC 28402-1526
PO BOX 1527, WILMINGTON, NC 28402-1527
PO BOX 1528, WILMINGTON, NC 28402-1528
PO BOX 1529, WILMINGTON, NC 28402-1529
PO BOX 1530, WILMINGTON, NC 28402-1530
PO BOX 1531, WILMINGTON, NC 28402-1531
PO BOX 1532, WILMINGTON, NC 28402-1532
PO BOX 1533, WILMINGTON, NC 28402-1533
PO BOX 1534, WILMINGTON, NC 28402-1534
PO BOX 1535, WILMINGTON, NC 28402-1535
PO BOX 1536, WILMINGTON, NC 28402-1536
PO BOX 1537, WILMINGTON, NC 28402-1537
PO BOX 1538, WILMINGTON, NC 28402-1538
PO BOX 1539, WILMINGTON, NC 28402-1539
PO BOX 1540, WILMINGTON, NC 28402-1540
PO BOX 1541, WILMINGTON, NC 28402-1541
PO BOX 1542, WILMINGTON, NC 28402-1542
PO BOX 1543, WILMINGTON, NC 28402-1543
PO BOX 1544, WILMINGTON, NC 28402-1544
PO BOX 1545, WILMINGTON, NC 28402-1545
PO BOX 1546, WILMINGTON, NC 28402-1546
PO BOX 1547, WILMINGTON, NC 28402-1547
PO BOX 1548, WILMINGTON, NC 28402-1548
PO BOX 1549, WILMINGTON, NC 28402-1549
PO BOX 1550, WILMINGTON, NC 28402-1550
PO BOX 1551, WILMINGTON, NC 28402-1551
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