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 601278, CHARLOTTE, NC 28260-1278
PO BOX 601279, CHARLOTTE, NC 28260-1279
PO BOX 601280, CHARLOTTE, NC 28260-1280
PO BOX 601281, CHARLOTTE, NC 28260-1281
PO BOX 601282, CHARLOTTE, NC 28260-1282
PO BOX 601283, CHARLOTTE, NC 28260-1283
PO BOX 601284, CHARLOTTE, NC 28260-1284
PO BOX 601285, CHARLOTTE, NC 28260-1285
PO BOX 601286, CHARLOTTE, NC 28260-1286
PO BOX 601287, CHARLOTTE, NC 28260-1287
PO BOX 601288, CHARLOTTE, NC 28260-1288
PO BOX 601289, CHARLOTTE, NC 28260-1289
PO BOX 601290, CHARLOTTE, NC 28260-1290
PO BOX 601291, CHARLOTTE, NC 28260-1291
PO BOX 601292, CHARLOTTE, NC 28260-1292
PO BOX 601293, CHARLOTTE, NC 28260-1293
PO BOX 601294, CHARLOTTE, NC 28260-1294
PO BOX 601295, CHARLOTTE, NC 28260-1295
PO BOX 601296, CHARLOTTE, NC 28260-1296
PO BOX 601297, CHARLOTTE, NC 28260-1297
PO BOX 601298, CHARLOTTE, NC 28260-1298
PO BOX 601299, CHARLOTTE, NC 28260-1299
PO BOX 601300, CHARLOTTE, NC 28260-1300
PO BOX 601301, CHARLOTTE, NC 28260-1301
PO BOX 601302, CHARLOTTE, NC 28260-1302
PO BOX 601303, CHARLOTTE, NC 28260-1303
PO BOX 601304, CHARLOTTE, NC 28260-1304
PO BOX 601305, CHARLOTTE, NC 28260-1305
PO BOX 601306, CHARLOTTE, NC 28260-1306
PO BOX 601307, CHARLOTTE, NC 28260-1307
PO BOX 601308, CHARLOTTE, NC 28260-1308
PO BOX 601309, CHARLOTTE, NC 28260-1309
PO BOX 601310, CHARLOTTE, NC 28260-1310
PO BOX 601311, CHARLOTTE, NC 28260-1311
PO BOX 601312, CHARLOTTE, NC 28260-1312
PO BOX 601313, CHARLOTTE, NC 28260-1313
PO BOX 601314, CHARLOTTE, NC 28260-1314
PO BOX 601315, CHARLOTTE, NC 28260-1315
PO BOX 601316, CHARLOTTE, NC 28260-1316
PO BOX 601317, CHARLOTTE, NC 28260-1317
PO BOX 601318, CHARLOTTE, NC 28260-1318
PO BOX 601319, CHARLOTTE, NC 28260-1319
PO BOX 601320, CHARLOTTE, NC 28260-1320
PO BOX 601321, CHARLOTTE, NC 28260-1321
PO BOX 601322, CHARLOTTE, NC 28260-1322
PO BOX 601323, CHARLOTTE, NC 28260-1323
PO BOX 601324, CHARLOTTE, NC 28260-1324
PO BOX 601325, CHARLOTTE, NC 28260-1325
PO BOX 601326, CHARLOTTE, NC 28260-1326
PO BOX 601327, CHARLOTTE, NC 28260-1327
PO BOX 601328, CHARLOTTE, NC 28260-1328
PO BOX 601329, CHARLOTTE, NC 28260-1329
PO BOX 601330, CHARLOTTE, NC 28260-1330
PO BOX 601331, CHARLOTTE, NC 28260-1331
PO BOX 601332, CHARLOTTE, NC 28260-1332
PO BOX 601333, CHARLOTTE, NC 28260-1333
PO BOX 601334, CHARLOTTE, NC 28260-1334
PO BOX 601335, CHARLOTTE, NC 28260-1335
PO BOX 601336, CHARLOTTE, NC 28260-1336
PO BOX 601337, CHARLOTTE, NC 28260-1337
PO BOX 601338, CHARLOTTE, NC 28260-1338
PO BOX 601339, CHARLOTTE, NC 28260-1339
PO BOX 601340, CHARLOTTE, NC 28260-1340
PO BOX 601341, CHARLOTTE, NC 28260-1341
PO BOX 601342, CHARLOTTE, NC 28260-1342
PO BOX 601343, CHARLOTTE, NC 28260-1343
PO BOX 601344, CHARLOTTE, NC 28260-1344
PO BOX 601345, CHARLOTTE, NC 28260-1345
PO BOX 601346, CHARLOTTE, NC 28260-1346
PO BOX 601347, CHARLOTTE, NC 28260-1347
PO BOX 601348, CHARLOTTE, NC 28260-1348
PO BOX 601349, CHARLOTTE, NC 28260-1349
PO BOX 601350, CHARLOTTE, NC 28260-1350
PO BOX 601351, CHARLOTTE, NC 28260-1351
PO BOX 601352, CHARLOTTE, NC 28260-1352
PO BOX 601353, CHARLOTTE, NC 28260-1353
PO BOX 601354, CHARLOTTE, NC 28260-1354
PO BOX 601355, CHARLOTTE, NC 28260-1355
PO BOX 601356, CHARLOTTE, NC 28260-1356
PO BOX 601357, CHARLOTTE, NC 28260-1357
PO BOX 601358, CHARLOTTE, NC 28260-1358
PO BOX 601359, CHARLOTTE, NC 28260-1359
PO BOX 601360, CHARLOTTE, NC 28260-1360
PO BOX 601361, CHARLOTTE, NC 28260-1361
PO BOX 601362, CHARLOTTE, NC 28260-1362
PO BOX 601363, CHARLOTTE, NC 28260-1363
PO BOX 601364, CHARLOTTE, NC 28260-1364
PO BOX 601365, CHARLOTTE, NC 28260-1365
PO BOX 601366, CHARLOTTE, NC 28260-1366
PO BOX 601367, CHARLOTTE, NC 28260-1367
PO BOX 601368, CHARLOTTE, NC 28260-1368
PO BOX 601369, CHARLOTTE, NC 28260-1369
PO BOX 601370, CHARLOTTE, NC 28260-1370
PO BOX 601371, CHARLOTTE, NC 28260-1371
PO BOX 601372, CHARLOTTE, NC 28260-1372
PO BOX 601373, CHARLOTTE, NC 28260-1373
PO BOX 601374, CHARLOTTE, NC 28260-1374
PO BOX 601375, CHARLOTTE, NC 28260-1375
PO BOX 601376, CHARLOTTE, NC 28260-1376
PO BOX 601377, CHARLOTTE, NC 28260-1377
PO BOX 601378, CHARLOTTE, NC 28260-1378
PO BOX 601379, CHARLOTTE, NC 28260-1379
PO BOX 601380, CHARLOTTE, NC 28260-1380
PO BOX 601381, CHARLOTTE, NC 28260-1381
PO BOX 601382, CHARLOTTE, NC 28260-1382
PO BOX 601383, CHARLOTTE, NC 28260-1383
PO BOX 601384, CHARLOTTE, NC 28260-1384
PO BOX 601385, CHARLOTTE, NC 28260-1385
PO BOX 601386, CHARLOTTE, NC 28260-1386
PO BOX 601387, CHARLOTTE, NC 28260-1387
PO BOX 601388, CHARLOTTE, NC 28260-1388
PO BOX 601389, CHARLOTTE, NC 28260-1389
PO BOX 601390, CHARLOTTE, NC 28260-1390
PO BOX 601391, CHARLOTTE, NC 28260-1391
PO BOX 601392, CHARLOTTE, NC 28260-1392
PO BOX 601393, CHARLOTTE, NC 28260-1393
PO BOX 601394, CHARLOTTE, NC 28260-1394
PO BOX 601395, CHARLOTTE, NC 28260-1395
PO BOX 601396, CHARLOTTE, NC 28260-1396
PO BOX 601397, CHARLOTTE, NC 28260-1397
PO BOX 601398, CHARLOTTE, NC 28260-1398
PO BOX 601399, CHARLOTTE, NC 28260-1399
PO BOX 601400, CHARLOTTE, NC 28260-1400
PO BOX 601401, CHARLOTTE, NC 28260-1401
PO BOX 601402, CHARLOTTE, NC 28260-1402
PO BOX 601403, CHARLOTTE, NC 28260-1403
PO BOX 601404, CHARLOTTE, NC 28260-1404
PO BOX 601405, CHARLOTTE, NC 28260-1405
PO BOX 601406, CHARLOTTE, NC 28260-1406
PO BOX 601407, CHARLOTTE, NC 28260-1407
PO BOX 601408, CHARLOTTE, NC 28260-1408
PO BOX 601409, CHARLOTTE, NC 28260-1409
PO BOX 601410, CHARLOTTE, NC 28260-1410
PO BOX 601411, CHARLOTTE, NC 28260-1411
PO BOX 601412, CHARLOTTE, NC 28260-1412
PO BOX 601413, CHARLOTTE, NC 28260-1413
PO BOX 601414, CHARLOTTE, NC 28260-1414
PO BOX 601415, CHARLOTTE, NC 28260-1415
PO BOX 601416, CHARLOTTE, NC 28260-1416
PO BOX 601417, CHARLOTTE, NC 28260-1417
PO BOX 601418, CHARLOTTE, NC 28260-1418
PO BOX 601419, CHARLOTTE, NC 28260-1419
PO BOX 601420, CHARLOTTE, NC 28260-1420
PO BOX 601421, CHARLOTTE, NC 28260-1421
PO BOX 601422, CHARLOTTE, NC 28260-1422
PO BOX 601423, CHARLOTTE, NC 28260-1423
PO BOX 601424, CHARLOTTE, NC 28260-1424
PO BOX 601425, CHARLOTTE, NC 28260-1425
PO BOX 601426, CHARLOTTE, NC 28260-1426
PO BOX 601427, CHARLOTTE, NC 28260-1427
PO BOX 601428, CHARLOTTE, NC 28260-1428
PO BOX 601429, CHARLOTTE, NC 28260-1429
PO BOX 601430, CHARLOTTE, NC 28260-1430
PO BOX 601431, CHARLOTTE, NC 28260-1431
PO BOX 601432, CHARLOTTE, NC 28260-1432
PO BOX 601433, CHARLOTTE, NC 28260-1433
PO BOX 601434, CHARLOTTE, NC 28260-1434
PO BOX 601435, CHARLOTTE, NC 28260-1435
PO BOX 601436, CHARLOTTE, NC 28260-1436
PO BOX 601437, CHARLOTTE, NC 28260-1437
PO BOX 601438, CHARLOTTE, NC 28260-1438
PO BOX 601439, CHARLOTTE, NC 28260-1439
PO BOX 601440, CHARLOTTE, NC 28260-1440
PO BOX 601441, CHARLOTTE, NC 28260-1441
PO BOX 601442, CHARLOTTE, NC 28260-1442
PO BOX 601443, CHARLOTTE, NC 28260-1443
PO BOX 601444, CHARLOTTE, NC 28260-1444
PO BOX 601445, CHARLOTTE, NC 28260-1445
PO BOX 601446, CHARLOTTE, NC 28260-1446
PO BOX 601447, CHARLOTTE, NC 28260-1447
PO BOX 601448, CHARLOTTE, NC 28260-1448
PO BOX 601449, CHARLOTTE, NC 28260-1449
PO BOX 601450, CHARLOTTE, NC 28260-1450
PO BOX 601451, CHARLOTTE, NC 28260-1451
PO BOX 601452, CHARLOTTE, NC 28260-1452
PO BOX 601453, CHARLOTTE, NC 28260-1453
PO BOX 601454, CHARLOTTE, NC 28260-1454
PO BOX 601455, CHARLOTTE, NC 28260-1455
PO BOX 601456, CHARLOTTE, NC 28260-1456
PO BOX 601457, CHARLOTTE, NC 28260-1457
PO BOX 601458, CHARLOTTE, NC 28260-1458
PO BOX 601459, CHARLOTTE, NC 28260-1459
PO BOX 601460, CHARLOTTE, NC 28260-1460
PO BOX 601461, CHARLOTTE, NC 28260-1461
PO BOX 601462, CHARLOTTE, NC 28260-1462
PO BOX 601463, CHARLOTTE, NC 28260-1463
PO BOX 601464, CHARLOTTE, NC 28260-1464
PO BOX 601465, CHARLOTTE, NC 28260-1465
PO BOX 601466, CHARLOTTE, NC 28260-1466
PO BOX 601467, CHARLOTTE, NC 28260-1467
PO BOX 601468, CHARLOTTE, NC 28260-1468
PO BOX 601469, CHARLOTTE, NC 28260-1469
PO BOX 601470, CHARLOTTE, NC 28260-1470
PO BOX 601471, CHARLOTTE, NC 28260-1471
PO BOX 601472, CHARLOTTE, NC 28260-1472
PO BOX 601473, CHARLOTTE, NC 28260-1473
PO BOX 601474, CHARLOTTE, NC 28260-1474
PO BOX 601475, CHARLOTTE, NC 28260-1475
PO BOX 601476, CHARLOTTE, NC 28260-1476
PO BOX 601477, CHARLOTTE, NC 28260-1477
PO BOX 601478, CHARLOTTE, NC 28260-1478