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 1141, COMMERCE, TX 75429-1141
PO BOX 1142, COMMERCE, TX 75429-1142
PO BOX 1143, COMMERCE, TX 75429-1143
PO BOX 1144, COMMERCE, TX 75429-1144
PO BOX 1145, COMMERCE, TX 75429-1145
PO BOX 1146, COMMERCE, TX 75429-1146
PO BOX 1147, COMMERCE, TX 75429-1147
PO BOX 1148, COMMERCE, TX 75429-1148
PO BOX 1149, COMMERCE, TX 75429-1149
PO BOX 1150, COMMERCE, TX 75429-1150
PO BOX 1151, COMMERCE, TX 75429-1151
PO BOX 1152, COMMERCE, TX 75429-1152
PO BOX 1153, COMMERCE, TX 75429-1153
PO BOX 1154, COMMERCE, TX 75429-1154
PO BOX 1155, COMMERCE, TX 75429-1155
PO BOX 1156, COMMERCE, TX 75429-1156
PO BOX 1157, COMMERCE, TX 75429-1157
PO BOX 1158, COMMERCE, TX 75429-1158
PO BOX 1159, COMMERCE, TX 75429-1159
PO BOX 1160, COMMERCE, TX 75429-1160
PO BOX 1161, COMMERCE, TX 75429-1161
PO BOX 1162, COMMERCE, TX 75429-1162
PO BOX 1163, COMMERCE, TX 75429-1163
PO BOX 1164, COMMERCE, TX 75429-1164
PO BOX 1165, COMMERCE, TX 75429-1165
PO BOX 1166, COMMERCE, TX 75429-1166
PO BOX 1167, COMMERCE, TX 75429-1167
PO BOX 1168, COMMERCE, TX 75429-1168
PO BOX 1169, COMMERCE, TX 75429-1169
PO BOX 1170, COMMERCE, TX 75429-1170
PO BOX 1171, COMMERCE, TX 75429-1171
PO BOX 1172, COMMERCE, TX 75429-1172
PO BOX 1173, COMMERCE, TX 75429-1173
PO BOX 1174, COMMERCE, TX 75429-1174
PO BOX 1175, COMMERCE, TX 75429-1175
PO BOX 1176, COMMERCE, TX 75429-1176
PO BOX 1177, COMMERCE, TX 75429-1177
PO BOX 1178, COMMERCE, TX 75429-1178
PO BOX 1179, COMMERCE, TX 75429-1179
PO BOX 1180, COMMERCE, TX 75429-1180
PO BOX 1181, COMMERCE, TX 75429-1181
PO BOX 1182, COMMERCE, TX 75429-1182
PO BOX 1183, COMMERCE, TX 75429-1183
PO BOX 1184, COMMERCE, TX 75429-1184
PO BOX 1185, COMMERCE, TX 75429-1185
PO BOX 1186, COMMERCE, TX 75429-1186
PO BOX 1187, COMMERCE, TX 75429-1187
PO BOX 1188, COMMERCE, TX 75429-1188
PO BOX 1189, COMMERCE, TX 75429-1189
PO BOX 1190, COMMERCE, TX 75429-1190
PO BOX 1191, COMMERCE, TX 75429-1191
PO BOX 1192, COMMERCE, TX 75429-1192
PO BOX 1193, COMMERCE, TX 75429-1193
PO BOX 1194, COMMERCE, TX 75429-1194
PO BOX 1195, COMMERCE, TX 75429-1195
PO BOX 1196, COMMERCE, TX 75429-1196
PO BOX 1197, COMMERCE, TX 75429-1197
PO BOX 1198, COMMERCE, TX 75429-1198
PO BOX 1199, COMMERCE, TX 75429-1199
PO BOX 1200, COMMERCE, TX 75429-1200
PO BOX 1201, COMMERCE, TX 75429-1201
PO BOX 1202, COMMERCE, TX 75429-1202
PO BOX 1203, COMMERCE, TX 75429-1203
PO BOX 1204, COMMERCE, TX 75429-1204
PO BOX 1205, COMMERCE, TX 75429-1205
PO BOX 1206, COMMERCE, TX 75429-1206
PO BOX 1207, COMMERCE, TX 75429-1207
PO BOX 1208, COMMERCE, TX 75429-1208
PO BOX 1209, COMMERCE, TX 75429-1209
PO BOX 1210, COMMERCE, TX 75429-1210
PO BOX 1211, COMMERCE, TX 75429-1211
PO BOX 1212, COMMERCE, TX 75429-1212
PO BOX 1213, COMMERCE, TX 75429-1213
PO BOX 1214, COMMERCE, TX 75429-1214
PO BOX 1215, COMMERCE, TX 75429-1215
PO BOX 1216, COMMERCE, TX 75429-1216
PO BOX 1217, COMMERCE, TX 75429-1217
PO BOX 1218, COMMERCE, TX 75429-1218
PO BOX 1219, COMMERCE, TX 75429-1219
PO BOX 1220, COMMERCE, TX 75429-1220
PO BOX 1221, COMMERCE, TX 75429-1221
PO BOX 1222, COMMERCE, TX 75429-1222
PO BOX 1223, COMMERCE, TX 75429-1223
PO BOX 1224, COMMERCE, TX 75429-1224
PO BOX 1225, COMMERCE, TX 75429-1225
PO BOX 1226, COMMERCE, TX 75429-1226
PO BOX 1227, COMMERCE, TX 75429-1227
PO BOX 1228, COMMERCE, TX 75429-1228
PO BOX 1229, COMMERCE, TX 75429-1229
PO BOX 1230, COMMERCE, TX 75429-1230
PO BOX 1231, COMMERCE, TX 75429-1231
PO BOX 1232, COMMERCE, TX 75429-1232
PO BOX 1233, COMMERCE, TX 75429-1233
PO BOX 1234, COMMERCE, TX 75429-1234
PO BOX 1235, COMMERCE, TX 75429-1235
PO BOX 1236, COMMERCE, TX 75429-1236
PO BOX 1237, COMMERCE, TX 75429-1237
PO BOX 1238, COMMERCE, TX 75429-1238
PO BOX 1239, COMMERCE, TX 75429-1239
PO BOX 1240, COMMERCE, TX 75429-1240
PO BOX 1241, COMMERCE, TX 75429-1241
PO BOX 1242, COMMERCE, TX 75429-1242
PO BOX 1243, COMMERCE, TX 75429-1243
PO BOX 1244, COMMERCE, TX 75429-1244
PO BOX 1245, COMMERCE, TX 75429-1245
PO BOX 1246, COMMERCE, TX 75429-1246
PO BOX 1247, COMMERCE, TX 75429-1247
PO BOX 1248, COMMERCE, TX 75429-1248
PO BOX 1249, COMMERCE, TX 75429-1249
PO BOX 1250, COMMERCE, TX 75429-1250
PO BOX 1251, COMMERCE, TX 75429-1251
PO BOX 1252, COMMERCE, TX 75429-1252
PO BOX 1253, COMMERCE, TX 75429-1253
PO BOX 1254, COMMERCE, TX 75429-1254
PO BOX 1255, COMMERCE, TX 75429-1255
PO BOX 1256, COMMERCE, TX 75429-1256
PO BOX 1257, COMMERCE, TX 75429-1257
PO BOX 1258, COMMERCE, TX 75429-1258
PO BOX 1259, COMMERCE, TX 75429-1259
PO BOX 1260, COMMERCE, TX 75429-1260
PO BOX 1261, COMMERCE, TX 75429-1261
PO BOX 1262, COMMERCE, TX 75429-1262
PO BOX 1263, COMMERCE, TX 75429-1263
PO BOX 1264, COMMERCE, TX 75429-1264
PO BOX 1265, COMMERCE, TX 75429-1265
PO BOX 1266, COMMERCE, TX 75429-1266
PO BOX 1267, COMMERCE, TX 75429-1267
PO BOX 1268, COMMERCE, TX 75429-1268
PO BOX 1269, COMMERCE, TX 75429-1269
PO BOX 1270, COMMERCE, TX 75429-1270
PO BOX 1271, COMMERCE, TX 75429-1271
PO BOX 1272, COMMERCE, TX 75429-1272
PO BOX 1273, COMMERCE, TX 75429-1273
PO BOX 1274, COMMERCE, TX 75429-1274
PO BOX 1275, COMMERCE, TX 75429-1275
PO BOX 1276, COMMERCE, TX 75429-1276
PO BOX 1277, COMMERCE, TX 75429-1277
PO BOX 1278, COMMERCE, TX 75429-1278
PO BOX 1279, COMMERCE, TX 75429-1279
PO BOX 1280, COMMERCE, TX 75429-1280
PO BOX 1281, COMMERCE, TX 75429-1281
PO BOX 1282, COMMERCE, TX 75429-1282
PO BOX 1283, COMMERCE, TX 75429-1283
PO BOX 1284, COMMERCE, TX 75429-1284
PO BOX 1285, COMMERCE, TX 75429-1285
PO BOX 1286, COMMERCE, TX 75429-1286
PO BOX 1287, COMMERCE, TX 75429-1287
PO BOX 1288, COMMERCE, TX 75429-1288
PO BOX 1289, COMMERCE, TX 75429-1289
PO BOX 1290, COMMERCE, TX 75429-1290
PO BOX 1291, COMMERCE, TX 75429-1291
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