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 761, GLENDALE, CA 91209-0761
PO BOX 762, GLENDALE, CA 91209-0762
PO BOX 763, GLENDALE, CA 91209-0763
PO BOX 764, GLENDALE, CA 91209-0764
PO BOX 765, GLENDALE, CA 91209-0765
PO BOX 766, GLENDALE, CA 91209-0766
PO BOX 767, GLENDALE, CA 91209-0767
PO BOX 768, GLENDALE, CA 91209-0768
PO BOX 769, GLENDALE, CA 91209-0769
PO BOX 770, GLENDALE, CA 91209-0770
PO BOX 771, GLENDALE, CA 91209-0771
PO BOX 772, GLENDALE, CA 91209-0772
PO BOX 773, GLENDALE, CA 91209-0773
PO BOX 774, GLENDALE, CA 91209-0774
PO BOX 775, GLENDALE, CA 91209-0775
PO BOX 776, GLENDALE, CA 91209-0776
PO BOX 777, GLENDALE, CA 91209-0777
PO BOX 778, GLENDALE, CA 91209-0778
PO BOX 779, GLENDALE, CA 91209-0779
PO BOX 780, GLENDALE, CA 91209-0780
PO BOX 781, GLENDALE, CA 91209-0781
PO BOX 782, GLENDALE, CA 91209-0782
PO BOX 783, GLENDALE, CA 91209-0783
PO BOX 784, GLENDALE, CA 91209-0784
PO BOX 785, GLENDALE, CA 91209-0785
PO BOX 786, GLENDALE, CA 91209-0786
PO BOX 787, GLENDALE, CA 91209-0787
PO BOX 788, GLENDALE, CA 91209-0788
PO BOX 789, GLENDALE, CA 91209-0789
PO BOX 790, GLENDALE, CA 91209-0790
PO BOX 791, GLENDALE, CA 91209-0791
PO BOX 792, GLENDALE, CA 91209-0792
PO BOX 793, GLENDALE, CA 91209-0793
PO BOX 794, GLENDALE, CA 91209-0794
PO BOX 795, GLENDALE, CA 91209-0795
PO BOX 796, GLENDALE, CA 91209-0796
PO BOX 797, GLENDALE, CA 91209-0797
PO BOX 798, GLENDALE, CA 91209-0798
PO BOX 799, GLENDALE, CA 91209-0799
PO BOX 800, GLENDALE, CA 91209-0800
PO BOX 801, GLENDALE, CA 91209-0801
PO BOX 802, GLENDALE, CA 91209-0802
PO BOX 803, GLENDALE, CA 91209-0803
PO BOX 804, GLENDALE, CA 91209-0804
PO BOX 805, GLENDALE, CA 91209-0805
PO BOX 806, GLENDALE, CA 91209-0806
PO BOX 807, GLENDALE, CA 91209-0807
PO BOX 808, GLENDALE, CA 91209-0808
PO BOX 809, GLENDALE, CA 91209-0809
PO BOX 810, GLENDALE, CA 91209-0810
PO BOX 811, GLENDALE, CA 91209-0811
PO BOX 812, GLENDALE, CA 91209-0812
PO BOX 813, GLENDALE, CA 91209-0813
PO BOX 814, GLENDALE, CA 91209-0814
PO BOX 815, GLENDALE, CA 91209-0815
PO BOX 816, GLENDALE, CA 91209-0816
PO BOX 817, GLENDALE, CA 91209-0817
PO BOX 818, GLENDALE, CA 91209-0818
PO BOX 819, GLENDALE, CA 91209-0819
PO BOX 820, GLENDALE, CA 91209-0820
PO BOX 821, GLENDALE, CA 91209-0821
PO BOX 822, GLENDALE, CA 91209-0822
PO BOX 823, GLENDALE, CA 91209-0823
PO BOX 824, GLENDALE, CA 91209-0824
PO BOX 825, GLENDALE, CA 91209-0825
PO BOX 826, GLENDALE, CA 91209-0826
PO BOX 827, GLENDALE, CA 91209-0827
PO BOX 828, GLENDALE, CA 91209-0828
PO BOX 829, GLENDALE, CA 91209-0829
PO BOX 830, GLENDALE, CA 91209-0830
PO BOX 831, GLENDALE, CA 91209-0831
PO BOX 832, GLENDALE, CA 91209-0832
PO BOX 833, GLENDALE, CA 91209-0833
PO BOX 834, GLENDALE, CA 91209-0834
PO BOX 835, GLENDALE, CA 91209-0835
PO BOX 836, GLENDALE, CA 91209-0836
PO BOX 837, GLENDALE, CA 91209-0837
PO BOX 838, GLENDALE, CA 91209-0838
PO BOX 839, GLENDALE, CA 91209-0839
PO BOX 840, GLENDALE, CA 91209-0840
PO BOX 841, GLENDALE, CA 91209-0841
PO BOX 842, GLENDALE, CA 91209-0842
PO BOX 843, GLENDALE, CA 91209-0843
PO BOX 844, GLENDALE, CA 91209-0844
PO BOX 845, GLENDALE, CA 91209-0845
PO BOX 846, GLENDALE, CA 91209-0846
PO BOX 847, GLENDALE, CA 91209-0847
PO BOX 848, GLENDALE, CA 91209-0848
PO BOX 849, GLENDALE, CA 91209-0849
PO BOX 850, GLENDALE, CA 91209-0850
PO BOX 851, GLENDALE, CA 91209-0851
PO BOX 852, GLENDALE, CA 91209-0852
PO BOX 853, GLENDALE, CA 91209-0853
PO BOX 854, GLENDALE, CA 91209-0854
PO BOX 855, GLENDALE, CA 91209-0855
PO BOX 856, GLENDALE, CA 91209-0856
PO BOX 857, GLENDALE, CA 91209-0857
PO BOX 858, GLENDALE, CA 91209-0858
PO BOX 859, GLENDALE, CA 91209-0859
PO BOX 860, GLENDALE, CA 91209-0860
PO BOX 861, GLENDALE, CA 91209-0861
PO BOX 862, GLENDALE, CA 91209-0862
PO BOX 863, GLENDALE, CA 91209-0863
PO BOX 864, GLENDALE, CA 91209-0864
PO BOX 865, GLENDALE, CA 91209-0865
PO BOX 866, GLENDALE, CA 91209-0866
PO BOX 867, GLENDALE, CA 91209-0867
PO BOX 868, GLENDALE, CA 91209-0868
PO BOX 869, GLENDALE, CA 91209-0869
PO BOX 870, GLENDALE, CA 91209-0870
PO BOX 871, GLENDALE, CA 91209-0871
PO BOX 872, GLENDALE, CA 91209-0872
PO BOX 873, GLENDALE, CA 91209-0873
PO BOX 874, GLENDALE, CA 91209-0874
PO BOX 875, GLENDALE, CA 91209-0875
PO BOX 876, GLENDALE, CA 91209-0876
PO BOX 877, GLENDALE, CA 91209-0877
PO BOX 878, GLENDALE, CA 91209-0878
PO BOX 879, GLENDALE, CA 91209-0879
PO BOX 880, GLENDALE, CA 91209-0880
PO BOX 881, GLENDALE, CA 91209-0881
PO BOX 882, GLENDALE, CA 91209-0882
PO BOX 883, GLENDALE, CA 91209-0883
PO BOX 884, GLENDALE, CA 91209-0884
PO BOX 885, GLENDALE, CA 91209-0885
PO BOX 886, GLENDALE, CA 91209-0886
PO BOX 887, GLENDALE, CA 91209-0887
PO BOX 888, GLENDALE, CA 91209-0888
PO BOX 889, GLENDALE, CA 91209-0889
PO BOX 890, GLENDALE, CA 91209-0890
PO BOX 891, GLENDALE, CA 91209-0891
PO BOX 892, GLENDALE, CA 91209-0892
PO BOX 893, GLENDALE, CA 91209-0893
PO BOX 894, GLENDALE, CA 91209-0894
PO BOX 895, GLENDALE, CA 91209-0895
PO BOX 896, GLENDALE, CA 91209-0896
PO BOX 897, GLENDALE, CA 91209-0897
PO BOX 898, GLENDALE, CA 91209-0898
PO BOX 899, GLENDALE, CA 91209-0899
PO BOX 900, GLENDALE, CA 91209-0900
PO BOX 901, GLENDALE, CA 91209-0901
PO BOX 902, GLENDALE, CA 91209-0902
PO BOX 903, GLENDALE, CA 91209-0903
PO BOX 904, GLENDALE, CA 91209-0904
PO BOX 905, GLENDALE, CA 91209-0905
PO BOX 906, GLENDALE, CA 91209-0906
PO BOX 907, GLENDALE, CA 91209-0907
PO BOX 908, GLENDALE, CA 91209-0908
PO BOX 909, GLENDALE, CA 91209-0909
PO BOX 910, GLENDALE, CA 91209-0910
PO BOX 911, GLENDALE, CA 91209-0911
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