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 1151, FREDERICKSBURG, VA 22402-1151
PO BOX 1152, FREDERICKSBURG, VA 22402-1152
PO BOX 1153, FREDERICKSBURG, VA 22402-1153
PO BOX 1154, FREDERICKSBURG, VA 22402-1154
PO BOX 1155, FREDERICKSBURG, VA 22402-1155
PO BOX 1156, FREDERICKSBURG, VA 22402-1156
PO BOX 1157, FREDERICKSBURG, VA 22402-1157
PO BOX 1158, FREDERICKSBURG, VA 22402-1158
PO BOX 1159, FREDERICKSBURG, VA 22402-1159
PO BOX 1160, FREDERICKSBURG, VA 22402-1160
PO BOX 1161, FREDERICKSBURG, VA 22402-1161
PO BOX 1162, FREDERICKSBURG, VA 22402-1162
PO BOX 1163, FREDERICKSBURG, VA 22402-1163
PO BOX 1164, FREDERICKSBURG, VA 22402-1164
PO BOX 1165, FREDERICKSBURG, VA 22402-1165
PO BOX 1166, FREDERICKSBURG, VA 22402-1166
PO BOX 1167, FREDERICKSBURG, VA 22402-1167
PO BOX 1168, FREDERICKSBURG, VA 22402-1168
PO BOX 1169, FREDERICKSBURG, VA 22402-1169
PO BOX 1170, FREDERICKSBURG, VA 22402-1170
PO BOX 1171, FREDERICKSBURG, VA 22402-1171
PO BOX 1172, FREDERICKSBURG, VA 22402-1172
PO BOX 1173, FREDERICKSBURG, VA 22402-1173
PO BOX 1174, FREDERICKSBURG, VA 22402-1174
PO BOX 1175, FREDERICKSBURG, VA 22402-1175
PO BOX 1176, FREDERICKSBURG, VA 22402-1176
PO BOX 1177, FREDERICKSBURG, VA 22402-1177
PO BOX 1178, FREDERICKSBURG, VA 22402-1178
PO BOX 1179, FREDERICKSBURG, VA 22402-1179
PO BOX 1180, FREDERICKSBURG, VA 22402-1180
PO BOX 1181, FREDERICKSBURG, VA 22402-1181
PO BOX 1182, FREDERICKSBURG, VA 22402-1182
PO BOX 1183, FREDERICKSBURG, VA 22402-1183
PO BOX 1184, FREDERICKSBURG, VA 22402-1184
PO BOX 1185, FREDERICKSBURG, VA 22402-1185
PO BOX 1186, FREDERICKSBURG, VA 22402-1186
PO BOX 1187, FREDERICKSBURG, VA 22402-1187
PO BOX 1188, FREDERICKSBURG, VA 22402-1188
PO BOX 1189, FREDERICKSBURG, VA 22402-1189
PO BOX 1190, FREDERICKSBURG, VA 22402-1190
PO BOX 1191, FREDERICKSBURG, VA 22402-1191
PO BOX 1192, FREDERICKSBURG, VA 22402-1192
PO BOX 1193, FREDERICKSBURG, VA 22402-1193
PO BOX 1194, FREDERICKSBURG, VA 22402-1194
PO BOX 1195, FREDERICKSBURG, VA 22402-1195
PO BOX 1196, FREDERICKSBURG, VA 22402-1196
PO BOX 1197, FREDERICKSBURG, VA 22402-1197
PO BOX 1198, FREDERICKSBURG, VA 22402-1198
PO BOX 1199, FREDERICKSBURG, VA 22402-1199
PO BOX 1200, FREDERICKSBURG, VA 22402-1200
PO BOX 1201, FREDERICKSBURG, VA 22402-1201
PO BOX 1202, FREDERICKSBURG, VA 22402-1202
PO BOX 1203, FREDERICKSBURG, VA 22402-1203
PO BOX 1204, FREDERICKSBURG, VA 22402-1204
PO BOX 1205, FREDERICKSBURG, VA 22402-1205
PO BOX 1206, FREDERICKSBURG, VA 22402-1206
PO BOX 1207, FREDERICKSBURG, VA 22402-1207
PO BOX 1208, FREDERICKSBURG, VA 22402-1208
PO BOX 1209, FREDERICKSBURG, VA 22402-1209
PO BOX 1210, FREDERICKSBURG, VA 22402-1210
PO BOX 1211, FREDERICKSBURG, VA 22402-1211
PO BOX 1212, FREDERICKSBURG, VA 22402-1212
PO BOX 1213, FREDERICKSBURG, VA 22402-1213
PO BOX 1214, FREDERICKSBURG, VA 22402-1214
PO BOX 1215, FREDERICKSBURG, VA 22402-1215
PO BOX 1216, FREDERICKSBURG, VA 22402-1216
PO BOX 1217, FREDERICKSBURG, VA 22402-1217
PO BOX 1218, FREDERICKSBURG, VA 22402-1218
PO BOX 1219, FREDERICKSBURG, VA 22402-1219
PO BOX 1220, FREDERICKSBURG, VA 22402-1220
PO BOX 1221, FREDERICKSBURG, VA 22402-1221
PO BOX 1222, FREDERICKSBURG, VA 22402-1222
PO BOX 1223, FREDERICKSBURG, VA 22402-1223
PO BOX 1224, FREDERICKSBURG, VA 22402-1224
PO BOX 1225, FREDERICKSBURG, VA 22402-1225
PO BOX 1226, FREDERICKSBURG, VA 22402-1226
PO BOX 1227, FREDERICKSBURG, VA 22402-1227
PO BOX 1228, FREDERICKSBURG, VA 22402-1228
PO BOX 1229, FREDERICKSBURG, VA 22402-1229
PO BOX 1230, FREDERICKSBURG, VA 22402-1230
PO BOX 1231, FREDERICKSBURG, VA 22402-1231
PO BOX 1232, FREDERICKSBURG, VA 22402-1232
PO BOX 1233, FREDERICKSBURG, VA 22402-1233
PO BOX 1234, FREDERICKSBURG, VA 22402-1234
PO BOX 1235, FREDERICKSBURG, VA 22402-1235
PO BOX 1236, FREDERICKSBURG, VA 22402-1236
PO BOX 1237, FREDERICKSBURG, VA 22402-1237
PO BOX 1238, FREDERICKSBURG, VA 22402-1238
PO BOX 1239, FREDERICKSBURG, VA 22402-1239
PO BOX 1240, FREDERICKSBURG, VA 22402-1240
PO BOX 1241, FREDERICKSBURG, VA 22402-1241
PO BOX 1242, FREDERICKSBURG, VA 22402-1242
PO BOX 1243, FREDERICKSBURG, VA 22402-1243
PO BOX 1244, FREDERICKSBURG, VA 22402-1244
PO BOX 1245, FREDERICKSBURG, VA 22402-1245
PO BOX 1246, FREDERICKSBURG, VA 22402-1246
PO BOX 1247, FREDERICKSBURG, VA 22402-1247
PO BOX 1248, FREDERICKSBURG, VA 22402-1248
PO BOX 1249, FREDERICKSBURG, VA 22402-1249
PO BOX 1250, FREDERICKSBURG, VA 22402-1250
PO BOX 1251, FREDERICKSBURG, VA 22402-1251
PO BOX 1252, FREDERICKSBURG, VA 22402-1252
PO BOX 1253, FREDERICKSBURG, VA 22402-1253
PO BOX 1254, FREDERICKSBURG, VA 22402-1254
PO BOX 1255, FREDERICKSBURG, VA 22402-1255
PO BOX 1256, FREDERICKSBURG, VA 22402-1256
PO BOX 1257, FREDERICKSBURG, VA 22402-1257
PO BOX 1258, FREDERICKSBURG, VA 22402-1258
PO BOX 1259, FREDERICKSBURG, VA 22402-1259
PO BOX 1260, FREDERICKSBURG, VA 22402-1260
PO BOX 1261, FREDERICKSBURG, VA 22402-1261
PO BOX 1262, FREDERICKSBURG, VA 22402-1262
PO BOX 1263, FREDERICKSBURG, VA 22402-1263
PO BOX 1264, FREDERICKSBURG, VA 22402-1264
PO BOX 1265, FREDERICKSBURG, VA 22402-1265
PO BOX 1266, FREDERICKSBURG, VA 22402-1266
PO BOX 1267, FREDERICKSBURG, VA 22402-1267
PO BOX 1268, FREDERICKSBURG, VA 22402-1268
PO BOX 1269, FREDERICKSBURG, VA 22402-1269
PO BOX 1270, FREDERICKSBURG, VA 22402-1270
PO BOX 1271, FREDERICKSBURG, VA 22402-1271
PO BOX 1272, FREDERICKSBURG, VA 22402-1272
PO BOX 1273, FREDERICKSBURG, VA 22402-1273
PO BOX 1274, FREDERICKSBURG, VA 22402-1274
PO BOX 1275, FREDERICKSBURG, VA 22402-1275
PO BOX 1276, FREDERICKSBURG, VA 22402-1276
PO BOX 1277, FREDERICKSBURG, VA 22402-1277
PO BOX 1278, FREDERICKSBURG, VA 22402-1278
PO BOX 1279, FREDERICKSBURG, VA 22402-1279
PO BOX 1280, FREDERICKSBURG, VA 22402-1280
PO BOX 1281, FREDERICKSBURG, VA 22402-1281
PO BOX 1282, FREDERICKSBURG, VA 22402-1282
PO BOX 1283, FREDERICKSBURG, VA 22402-1283
PO BOX 1284, FREDERICKSBURG, VA 22402-1284
PO BOX 1285, FREDERICKSBURG, VA 22402-1285
PO BOX 1286, FREDERICKSBURG, VA 22402-1286
PO BOX 1287, FREDERICKSBURG, VA 22402-1287
PO BOX 1288, FREDERICKSBURG, VA 22402-1288
PO BOX 1289, FREDERICKSBURG, VA 22402-1289
PO BOX 1290, FREDERICKSBURG, VA 22402-1290
PO BOX 1291, FREDERICKSBURG, VA 22402-1291
PO BOX 1292, FREDERICKSBURG, VA 22402-1292
PO BOX 1293, FREDERICKSBURG, VA 22402-1293
PO BOX 1294, FREDERICKSBURG, VA 22402-1294
PO BOX 1295, FREDERICKSBURG, VA 22402-1295
PO BOX 1296, FREDERICKSBURG, VA 22402-1296
PO BOX 1297, FREDERICKSBURG, VA 22402-1297
PO BOX 1298, FREDERICKSBURG, VA 22402-1298
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