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 1241, BIG SPRING, TX 79721-1241
PO BOX 1242, BIG SPRING, TX 79721-1242
PO BOX 1243, BIG SPRING, TX 79721-1243
PO BOX 1244, BIG SPRING, TX 79721-1244
PO BOX 1245, BIG SPRING, TX 79721-1245
PO BOX 1246, BIG SPRING, TX 79721-1246
PO BOX 1247, BIG SPRING, TX 79721-1247
PO BOX 1248, BIG SPRING, TX 79721-1248
PO BOX 1249, BIG SPRING, TX 79721-1249
PO BOX 1250, BIG SPRING, TX 79721-1250
PO BOX 1251, BIG SPRING, TX 79721-1251
PO BOX 1252, BIG SPRING, TX 79721-1252
PO BOX 1253, BIG SPRING, TX 79721-1253
PO BOX 1254, BIG SPRING, TX 79721-1254
PO BOX 1255, BIG SPRING, TX 79721-1255
PO BOX 1256, BIG SPRING, TX 79721-1256
PO BOX 1257, BIG SPRING, TX 79721-1257
PO BOX 1258, BIG SPRING, TX 79721-1258
PO BOX 1259, BIG SPRING, TX 79721-1259
PO BOX 1260, BIG SPRING, TX 79721-1260
PO BOX 1261, BIG SPRING, TX 79721-1261
PO BOX 1262, BIG SPRING, TX 79721-1262
PO BOX 1263, BIG SPRING, TX 79721-1263
PO BOX 1264, BIG SPRING, TX 79721-1264
PO BOX 1265, BIG SPRING, TX 79721-1265
PO BOX 1266, BIG SPRING, TX 79721-1266
PO BOX 1267, BIG SPRING, TX 79721-1267
PO BOX 1268, BIG SPRING, TX 79721-1268
PO BOX 1269, BIG SPRING, TX 79721-1269
PO BOX 1270, BIG SPRING, TX 79721-1270
PO BOX 1271, BIG SPRING, TX 79721-1271
PO BOX 1272, BIG SPRING, TX 79721-1272
PO BOX 1273, BIG SPRING, TX 79721-1273
PO BOX 1274, BIG SPRING, TX 79721-1274
PO BOX 1275, BIG SPRING, TX 79721-1275
PO BOX 1276, BIG SPRING, TX 79721-1276
PO BOX 1277, BIG SPRING, TX 79721-1277
PO BOX 1278, BIG SPRING, TX 79721-1278
PO BOX 1279, BIG SPRING, TX 79721-1279
PO BOX 1280, BIG SPRING, TX 79721-1280
PO BOX 1281, BIG SPRING, TX 79721-1281
PO BOX 1282, BIG SPRING, TX 79721-1282
PO BOX 1283, BIG SPRING, TX 79721-1283
PO BOX 1284, BIG SPRING, TX 79721-1284
PO BOX 1285, BIG SPRING, TX 79721-1285
PO BOX 1286, BIG SPRING, TX 79721-1286
PO BOX 1287, BIG SPRING, TX 79721-1287
PO BOX 1288, BIG SPRING, TX 79721-1288
PO BOX 1289, BIG SPRING, TX 79721-1289
PO BOX 1290, BIG SPRING, TX 79721-1290
PO BOX 1291, BIG SPRING, TX 79721-1291
PO BOX 1292, BIG SPRING, TX 79721-1292
PO BOX 1293, BIG SPRING, TX 79721-1293
PO BOX 1294, BIG SPRING, TX 79721-1294
PO BOX 1295, BIG SPRING, TX 79721-1295
PO BOX 1296, BIG SPRING, TX 79721-1296
PO BOX 1297, BIG SPRING, TX 79721-1297
PO BOX 1298, BIG SPRING, TX 79721-1298
PO BOX 1299, BIG SPRING, TX 79721-1299
PO BOX 1300, BIG SPRING, TX 79721-1300
PO BOX 1301, BIG SPRING, TX 79721-1301
PO BOX 1302, BIG SPRING, TX 79721-1302
PO BOX 1303, BIG SPRING, TX 79721-1303
PO BOX 1304, BIG SPRING, TX 79721-1304
PO BOX 1305, BIG SPRING, TX 79721-1305
PO BOX 1306, BIG SPRING, TX 79721-1306
PO BOX 1307, BIG SPRING, TX 79721-1307
PO BOX 1308, BIG SPRING, TX 79721-1308
PO BOX 1309, BIG SPRING, TX 79721-1309
PO BOX 1310, BIG SPRING, TX 79721-1310
PO BOX 1311, BIG SPRING, TX 79721-1311
PO BOX 1312, BIG SPRING, TX 79721-1312
PO BOX 1313, BIG SPRING, TX 79721-1313
PO BOX 1314, BIG SPRING, TX 79721-1314
PO BOX 1315, BIG SPRING, TX 79721-1315
PO BOX 1316, BIG SPRING, TX 79721-1316
PO BOX 1317, BIG SPRING, TX 79721-1317
PO BOX 1318, BIG SPRING, TX 79721-1318
PO BOX 1319, BIG SPRING, TX 79721-1319
PO BOX 1320, BIG SPRING, TX 79721-1320
PO BOX 1321, BIG SPRING, TX 79721-1321
PO BOX 1322, BIG SPRING, TX 79721-1322
PO BOX 1323, BIG SPRING, TX 79721-1323
PO BOX 1324, BIG SPRING, TX 79721-1324
PO BOX 1325, BIG SPRING, TX 79721-1325
PO BOX 1326, BIG SPRING, TX 79721-1326
PO BOX 1327, BIG SPRING, TX 79721-1327
PO BOX 1328, BIG SPRING, TX 79721-1328
PO BOX 1329, BIG SPRING, TX 79721-1329
PO BOX 1330, BIG SPRING, TX 79721-1330
PO BOX 1331, BIG SPRING, TX 79721-1331
PO BOX 1332, BIG SPRING, TX 79721-1332
PO BOX 1333, BIG SPRING, TX 79721-1333
PO BOX 1334, BIG SPRING, TX 79721-1334
PO BOX 1335, BIG SPRING, TX 79721-1335
PO BOX 1336, BIG SPRING, TX 79721-1336
PO BOX 1337, BIG SPRING, TX 79721-1337
PO BOX 1338, BIG SPRING, TX 79721-1338
PO BOX 1339, BIG SPRING, TX 79721-1339
PO BOX 1340, BIG SPRING, TX 79721-1340
PO BOX 1341, BIG SPRING, TX 79721-1341
PO BOX 1342, BIG SPRING, TX 79721-1342
PO BOX 1343, BIG SPRING, TX 79721-1343
PO BOX 1344, BIG SPRING, TX 79721-1344
PO BOX 1345, BIG SPRING, TX 79721-1345
PO BOX 1346, BIG SPRING, TX 79721-1346
PO BOX 1347, BIG SPRING, TX 79721-1347
PO BOX 1348, BIG SPRING, TX 79721-1348
PO BOX 1349, BIG SPRING, TX 79721-1349
PO BOX 1350, BIG SPRING, TX 79721-1350
PO BOX 1351, BIG SPRING, TX 79721-1351
PO BOX 1352, BIG SPRING, TX 79721-1352
PO BOX 1353, BIG SPRING, TX 79721-1353
PO BOX 1354, BIG SPRING, TX 79721-1354
PO BOX 1355, BIG SPRING, TX 79721-1355
PO BOX 1356, BIG SPRING, TX 79721-1356
PO BOX 1357, BIG SPRING, TX 79721-1357
PO BOX 1358, BIG SPRING, TX 79721-1358
PO BOX 1359, BIG SPRING, TX 79721-1359
PO BOX 1360, BIG SPRING, TX 79721-1360
PO BOX 1361, BIG SPRING, TX 79721-1361
PO BOX 1362, BIG SPRING, TX 79721-1362
PO BOX 1363, BIG SPRING, TX 79721-1363
PO BOX 1364, BIG SPRING, TX 79721-1364
PO BOX 1365, BIG SPRING, TX 79721-1365
PO BOX 1366, BIG SPRING, TX 79721-1366
PO BOX 1367, BIG SPRING, TX 79721-1367
PO BOX 1368, BIG SPRING, TX 79721-1368
PO BOX 1369, BIG SPRING, TX 79721-1369
PO BOX 1370, BIG SPRING, TX 79721-1370
PO BOX 1371, BIG SPRING, TX 79721-1371
PO BOX 1372, BIG SPRING, TX 79721-1372
PO BOX 1373, BIG SPRING, TX 79721-1373
PO BOX 1374, BIG SPRING, TX 79721-1374
PO BOX 1375, BIG SPRING, TX 79721-1375
PO BOX 1376, BIG SPRING, TX 79721-1376
PO BOX 1377, BIG SPRING, TX 79721-1377
PO BOX 1378, BIG SPRING, TX 79721-1378
PO BOX 1379, BIG SPRING, TX 79721-1379
PO BOX 1380, BIG SPRING, TX 79721-1380
PO BOX 1381, BIG SPRING, TX 79721-1381
PO BOX 1382, BIG SPRING, TX 79721-1382
PO BOX 1383, BIG SPRING, TX 79721-1383
PO BOX 1384, BIG SPRING, TX 79721-1384
PO BOX 1385, BIG SPRING, TX 79721-1385
PO BOX 1386, BIG SPRING, TX 79721-1386
PO BOX 1387, BIG SPRING, TX 79721-1387
PO BOX 1388, BIG SPRING, TX 79721-1388
PO BOX 1389, BIG SPRING, TX 79721-1389
PO BOX 1390, BIG SPRING, TX 79721-1390
PO BOX 1391, BIG SPRING, TX 79721-1391
PO BOX 1392, BIG SPRING, TX 79721-1392
PO BOX 1393, BIG SPRING, TX 79721-1393
PO BOX 1394, BIG SPRING, TX 79721-1394
PO BOX 1395, BIG SPRING, TX 79721-1395
PO BOX 1396, BIG SPRING, TX 79721-1396
PO BOX 1397, BIG SPRING, TX 79721-1397
PO BOX 1398, BIG SPRING, TX 79721-1398
PO BOX 1399, BIG SPRING, TX 79721-1399
PO BOX 1400, BIG SPRING, TX 79721-1400
PO BOX 1401, BIG SPRING, TX 79721-1401
PO BOX 1402, BIG SPRING, TX 79721-1402
PO BOX 1403, BIG SPRING, TX 79721-1403
PO BOX 1404, BIG SPRING, TX 79721-1404
PO BOX 1405, BIG SPRING, TX 79721-1405
PO BOX 1406, BIG SPRING, TX 79721-1406
PO BOX 1407, BIG SPRING, TX 79721-1407
PO BOX 1408, BIG SPRING, TX 79721-1408
PO BOX 1409, BIG SPRING, TX 79721-1409
PO BOX 1410, BIG SPRING, TX 79721-1410
PO BOX 1411, BIG SPRING, TX 79721-1411
PO BOX 1412, BIG SPRING, TX 79721-1412
PO BOX 1413, BIG SPRING, TX 79721-1413
PO BOX 1414, BIG SPRING, TX 79721-1414
PO BOX 1415, BIG SPRING, TX 79721-1415
PO BOX 1416, BIG SPRING, TX 79721-1416
PO BOX 1417, BIG SPRING, TX 79721-1417
PO BOX 1418, BIG SPRING, TX 79721-1418
PO BOX 1419, BIG SPRING, TX 79721-1419
PO BOX 1420, BIG SPRING, TX 79721-1420
PO BOX 1421, BIG SPRING, TX 79721-1421
PO BOX 1422, BIG SPRING, TX 79721-1422
PO BOX 1423, BIG SPRING, TX 79721-1423
PO BOX 1424, BIG SPRING, TX 79721-1424
PO BOX 1425, BIG SPRING, TX 79721-1425
PO BOX 1426, BIG SPRING, TX 79721-1426
PO BOX 1427, BIG SPRING, TX 79721-1427
PO BOX 1428, BIG SPRING, TX 79721-1428
PO BOX 1429, BIG SPRING, TX 79721-1429
PO BOX 1430, BIG SPRING, TX 79721-1430
PO BOX 1431, BIG SPRING, TX 79721-1431
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