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 1441, OLD FORT, NC 28762-1441
PO BOX 1442, OLD FORT, NC 28762-1442
PO BOX 1443, OLD FORT, NC 28762-1443
PO BOX 1444, OLD FORT, NC 28762-1444
PO BOX 1445, OLD FORT, NC 28762-1445
PO BOX 1446, OLD FORT, NC 28762-1446
PO BOX 1447, OLD FORT, NC 28762-1447
PO BOX 1448, OLD FORT, NC 28762-1448
PO BOX 1449, OLD FORT, NC 28762-1449
PO BOX 1450, OLD FORT, NC 28762-1450
PO BOX 1451, OLD FORT, NC 28762-1451
PO BOX 1452, OLD FORT, NC 28762-1452
PO BOX 1453, OLD FORT, NC 28762-1453
PO BOX 1454, OLD FORT, NC 28762-1454
PO BOX 1455, OLD FORT, NC 28762-1455
PO BOX 1456, OLD FORT, NC 28762-1456
PO BOX 1457, OLD FORT, NC 28762-1457
PO BOX 1458, OLD FORT, NC 28762-1458
PO BOX 1459, OLD FORT, NC 28762-1459
PO BOX 1460, OLD FORT, NC 28762-1460
PO BOX 1461, OLD FORT, NC 28762-1461
PO BOX 1462, OLD FORT, NC 28762-1462
PO BOX 1463, OLD FORT, NC 28762-1463
PO BOX 1464, OLD FORT, NC 28762-1464
PO BOX 1465, OLD FORT, NC 28762-1465
PO BOX 1466, OLD FORT, NC 28762-1466
PO BOX 1467, OLD FORT, NC 28762-1467
PO BOX 1468, OLD FORT, NC 28762-1468
PO BOX 1469, OLD FORT, NC 28762-1469
PO BOX 1470, OLD FORT, NC 28762-1470
PO BOX 1471, OLD FORT, NC 28762-1471
PO BOX 1472, OLD FORT, NC 28762-1472
PO BOX 1473, OLD FORT, NC 28762-1473
PO BOX 1474, OLD FORT, NC 28762-1474
PO BOX 1475, OLD FORT, NC 28762-1475
PO BOX 1476, OLD FORT, NC 28762-1476
PO BOX 1477, OLD FORT, NC 28762-1477
PO BOX 1478, OLD FORT, NC 28762-1478
PO BOX 1479, OLD FORT, NC 28762-1479
PO BOX 1480, OLD FORT, NC 28762-1480
PO BOX 1481, OLD FORT, NC 28762-1481
PO BOX 1482, OLD FORT, NC 28762-1482
PO BOX 1483, OLD FORT, NC 28762-1483
PO BOX 1484, OLD FORT, NC 28762-1484
PO BOX 1485, OLD FORT, NC 28762-1485
PO BOX 1486, OLD FORT, NC 28762-1486
PO BOX 1487, OLD FORT, NC 28762-1487
PO BOX 1488, OLD FORT, NC 28762-1488
PO BOX 1489, OLD FORT, NC 28762-1489
PO BOX 1490, OLD FORT, NC 28762-1490
PO BOX 1491, OLD FORT, NC 28762-1491
PO BOX 1492, OLD FORT, NC 28762-1492
PO BOX 1493, OLD FORT, NC 28762-1493
PO BOX 1494, OLD FORT, NC 28762-1494
PO BOX 1495, OLD FORT, NC 28762-1495
PO BOX 1496, OLD FORT, NC 28762-1496
PO BOX 1497, OLD FORT, NC 28762-1497
PO BOX 1498, OLD FORT, NC 28762-1498
PO BOX 1499, OLD FORT, NC 28762-1499
PO BOX 1500, OLD FORT, NC 28762-1500
PO BOX 1501, OLD FORT, NC 28762-1501
PO BOX 1502, OLD FORT, NC 28762-1502
PO BOX 1503, OLD FORT, NC 28762-1503
PO BOX 1504, OLD FORT, NC 28762-1504
PO BOX 1505, OLD FORT, NC 28762-1505
PO BOX 1506, OLD FORT, NC 28762-1506
PO BOX 1507, OLD FORT, NC 28762-1507
PO BOX 1508, OLD FORT, NC 28762-1508
PO BOX 1509, OLD FORT, NC 28762-1509
PO BOX 1510, OLD FORT, NC 28762-1510
PO BOX 1511, OLD FORT, NC 28762-1511
PO BOX 1512, OLD FORT, NC 28762-1512
PO BOX 1513, OLD FORT, NC 28762-1513
PO BOX 1514, OLD FORT, NC 28762-1514
PO BOX 1515, OLD FORT, NC 28762-1515
PO BOX 1516, OLD FORT, NC 28762-1516
PO BOX 1517, OLD FORT, NC 28762-1517
PO BOX 1518, OLD FORT, NC 28762-1518
PO BOX 1519, OLD FORT, NC 28762-1519
PO BOX 1520, OLD FORT, NC 28762-1520
PO BOX 1521, OLD FORT, NC 28762-1521
PO BOX 1522, OLD FORT, NC 28762-1522
PO BOX 1523, OLD FORT, NC 28762-1523
PO BOX 1524, OLD FORT, NC 28762-1524
PO BOX 1525, OLD FORT, NC 28762-1525
PO BOX 1526, OLD FORT, NC 28762-1526
PO BOX 1527, OLD FORT, NC 28762-1527
PO BOX 1528, OLD FORT, NC 28762-1528
PO BOX 1529, OLD FORT, NC 28762-1529
PO BOX 1530, OLD FORT, NC 28762-1530
PO BOX 1531, OLD FORT, NC 28762-1531
PO BOX 1532, OLD FORT, NC 28762-1532
PO BOX 1533, OLD FORT, NC 28762-1533
PO BOX 1534, OLD FORT, NC 28762-1534
PO BOX 1535, OLD FORT, NC 28762-1535
PO BOX 1536, OLD FORT, NC 28762-1536
PO BOX 1537, OLD FORT, NC 28762-1537
PO BOX 1538, OLD FORT, NC 28762-1538
PO BOX 1539, OLD FORT, NC 28762-1539
PO BOX 1540, OLD FORT, NC 28762-1540
PO BOX 1541, OLD FORT, NC 28762-1541
PO BOX 1542, OLD FORT, NC 28762-1542
PO BOX 1543, OLD FORT, NC 28762-1543
PO BOX 1544, OLD FORT, NC 28762-1544
PO BOX 1545, OLD FORT, NC 28762-1545
PO BOX 1546, OLD FORT, NC 28762-1546
PO BOX 1547, OLD FORT, NC 28762-1547
PO BOX 1548, OLD FORT, NC 28762-1548
PO BOX 1549, OLD FORT, NC 28762-1549
PO BOX 1550, OLD FORT, NC 28762-1550
PO BOX 1551, OLD FORT, NC 28762-1551
PO BOX 1552, OLD FORT, NC 28762-1552
PO BOX 1553, OLD FORT, NC 28762-1553
PO BOX 1554, OLD FORT, NC 28762-1554
PO BOX 1555, OLD FORT, NC 28762-1555
PO BOX 1556, OLD FORT, NC 28762-1556
PO BOX 1557, OLD FORT, NC 28762-1557
PO BOX 1558, OLD FORT, NC 28762-1558
PO BOX 1559, OLD FORT, NC 28762-1559
PO BOX 1560, OLD FORT, NC 28762-1560
PO BOX 1561, OLD FORT, NC 28762-1561
PO BOX 1562, OLD FORT, NC 28762-1562
PO BOX 1563, OLD FORT, NC 28762-1563
PO BOX 1564, OLD FORT, NC 28762-1564
PO BOX 1565, OLD FORT, NC 28762-1565
PO BOX 1566, OLD FORT, NC 28762-1566
PO BOX 1567, OLD FORT, NC 28762-1567
PO BOX 1568, OLD FORT, NC 28762-1568
PO BOX 1569, OLD FORT, NC 28762-1569
PO BOX 1570, OLD FORT, NC 28762-1570
PO BOX 1571, OLD FORT, NC 28762-1571
PO BOX 1572, OLD FORT, NC 28762-1572
PO BOX 1573, OLD FORT, NC 28762-1573
PO BOX 1574, OLD FORT, NC 28762-1574
PO BOX 1575, OLD FORT, NC 28762-1575
PO BOX 1576, OLD FORT, NC 28762-1576
PO BOX 1577, OLD FORT, NC 28762-1577
PO BOX 1578, OLD FORT, NC 28762-1578
PO BOX 1579, OLD FORT, NC 28762-1579
PO BOX 1580, OLD FORT, NC 28762-1580
PO BOX 1581, OLD FORT, NC 28762-1581
PO BOX 1582, OLD FORT, NC 28762-1582
PO BOX 1583, OLD FORT, NC 28762-1583
PO BOX 1584, OLD FORT, NC 28762-1584
PO BOX 1585, OLD FORT, NC 28762-1585
PO BOX 1586, OLD FORT, NC 28762-1586
PO BOX 1587, OLD FORT, NC 28762-1587
PO BOX 1588, OLD FORT, NC 28762-1588
PO BOX 1589, OLD FORT, NC 28762-1589
PO BOX 1590, OLD FORT, NC 28762-1590
PO BOX 1591, OLD FORT, NC 28762-1591
PO BOX 1592, OLD FORT, NC 28762-1592
PO BOX 1593, OLD FORT, NC 28762-1593
PO BOX 1594, OLD FORT, NC 28762-1594
PO BOX 1595, OLD FORT, NC 28762-1595
PO BOX 1596, OLD FORT, NC 28762-1596
PO BOX 1597, OLD FORT, NC 28762-1597
PO BOX 1598, OLD FORT, NC 28762-1598
PO BOX 1599, OLD FORT, NC 28762-1599
PO BOX 1600, OLD FORT, NC 28762-1600
PO BOX 1601, OLD FORT, NC 28762-1601
PO BOX 1602, OLD FORT, NC 28762-1602
PO BOX 1603, OLD FORT, NC 28762-1603
PO BOX 1604, OLD FORT, NC 28762-1604
PO BOX 1605, OLD FORT, NC 28762-1605
PO BOX 1606, OLD FORT, NC 28762-1606
PO BOX 1607, OLD FORT, NC 28762-1607
PO BOX 1608, OLD FORT, NC 28762-1608
PO BOX 1609, OLD FORT, NC 28762-1609
PO BOX 1610, OLD FORT, NC 28762-1610
PO BOX 1611, OLD FORT, NC 28762-1611
PO BOX 1612, OLD FORT, NC 28762-1612
PO BOX 1613, OLD FORT, NC 28762-1613
PO BOX 1614, OLD FORT, NC 28762-1614
PO BOX 1615, OLD FORT, NC 28762-1615
PO BOX 1616, OLD FORT, NC 28762-1616
PO BOX 1617, OLD FORT, NC 28762-1617
PO BOX 1618, OLD FORT, NC 28762-1618
PO BOX 1619, OLD FORT, NC 28762-1619
PO BOX 1620, OLD FORT, NC 28762-1620
PO BOX 1621, OLD FORT, NC 28762-1621
PO BOX 1622, OLD FORT, NC 28762-1622
PO BOX 1623, OLD FORT, NC 28762-1623
PO BOX 1624, OLD FORT, NC 28762-1624
PO BOX 1625, OLD FORT, NC 28762-1625
PO BOX 1626, OLD FORT, NC 28762-1626
PO BOX 1627, OLD FORT, NC 28762-1627
PO BOX 1628, OLD FORT, NC 28762-1628
PO BOX 1629, OLD FORT, NC 28762-1629
PO BOX 1630, OLD FORT, NC 28762-1630
PO BOX 1631, OLD FORT, NC 28762-1631
PO BOX 1632, OLD FORT, NC 28762-1632
PO BOX 1633, OLD FORT, NC 28762-1633
PO BOX 1634, OLD FORT, NC 28762-1634
PO BOX 1635, OLD FORT, NC 28762-1635
PO BOX 1636, OLD FORT, NC 28762-1636
PO BOX 1637, OLD FORT, NC 28762-1637
PO BOX 1638, OLD FORT, NC 28762-1638
PO BOX 1639, OLD FORT, NC 28762-1639
PO BOX 1640, OLD FORT, NC 28762-1640
PO BOX 1641, OLD FORT, NC 28762-1641
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