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Effective October 1, 2026, the Postal Service™ will revise Labeling Lists L007, L012, L016, L051, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the October 1, 2026, effective date through the November 30, 2026, expiration date.
Labeling Lists
L007 5-Digit Scheme—Periodicals, Standard Mail, and Package Services Flats in Bundles
Changes
Newly Added
* * * * *
L012 5-Digit ZIP Scheme Combination
Changes
Newly Added
Deleted
* * * * *
L016 3-Digit ZIP Code Prefix Groups—SCF Flat Sortation
Changes
* * * * *
L051 DSCF for Parcel Select / Market-Dominant Parcels
Changes
* * * * *
L201 Periodicals Origin Split and First-Class Mail Mixed ADC/AADC
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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150-154, 156, 160-165, 260, 265, 439
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150-154, 156, 160-165, 260, 265, 439
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005, 010-089, 100-212, 214-268, 270-297, 299-303, 305-307, 311, 313-315, 320-322, 326-329, 335-338, 342, 344, 346-347, 350-352, 354-394, 396-397, 399-418, 420-427, 430-497, 500-509, 514-516, 520-525, 530-532, 534, 549, 600-611, 617-620, 622-631, 633-641, 644-658, 660-662, 664-676, 678, 680-681, 683-689, 723-724
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005, 010-089, 100-212, 214-268, 270-297, 299-303, 305-307, 311, 313-315, 320-322, 326-329, 335-338, 342, 344, 346-347, 350-352, 354-364, 367-393, 396-397, 399-418, 420-427, 430-497, 500-509, 514-516, 520-525, 530-532, 534, 549, 600-611, 617-620, 622-631, 633-641, 644-658, 660-662, 664-676, 678, 680-681, 683-689, 723-724
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PITTSBURGH PA 150
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PITTSBURGH PA 150
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Column A: no change.
Column B deleted: 365-366, 394.
Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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576, 585-588
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576, 585-588
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430-433, 437-438, 456-458, 460-469, 472-474, 478-479, 490-491, 493-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-576, 580-588, 590-597, 600-620, 622-631, 633-641, 644-647, 649-653, 660-662, 664-676, 678, 680-681, 683-689, 821
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430-433, 437-438, 456-458, 460-469, 472-474, 478-479, 490-491, 493-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-576, 580-588, 590-620, 622-631, 633-641, 644-647, 649-653, 660-662, 664-676, 678, 680-681, 683-689, 821
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BISMARCK ND 585
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BISMARCK ND 585
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Column A: no change. Column B added: 598-599. Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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594-596
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594-596
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590-593, 597-599, 800-812, 814-816, 820-838, 840-846, 888, 898, 942, 952-953, 956-959, 970-974, 977-986, 988-994
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590-599, 800-812, 814-816, 820-838, 840-846, 888, 898, 942, 952-953, 956-959, 970-974, 977-986, 988-994
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GREAT FALLS MT 594
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GREAT FALLS MT 594
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Column A: no change.
Column B added: 594-596.
Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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640-641, 644-647, 649, 660-662, 664-668
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640-641, 644-647, 649, 660-662, 664-668
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-576, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-577, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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KANSAS CITY MO 640
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KANSAS CITY MO 640
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Column A: no change. Column B added: 577. Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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635, 650-653
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635, 650-653
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-576, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-577, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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MID-MISSOURI MO 650
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MID-MISSOURI MO 650
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Column A: no change. Column B added: 577. Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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648, 654-658
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648, 654-658
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-576, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-577, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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SPRINGFIELD MO 656
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SPRINGFIELD MO 656
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Column A: no change. Column B added: 577. Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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669-676, 678
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669-676, 678
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-576, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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144-146, 148-149, 167, 307, 350-352, 354-359, 362, 369-375, 377-393, 396-397, 400-410, 413-414, 417-418, 420-427, 430-433, 437-438, 440-443, 446-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-577, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 700-701, 703-708, 710-714, 716-731, 733-741, 743-770, 772-778, 780-782, 785-816, 820, 822-828, 865, 870-871, 873-885
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WICHITA KS 670
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WICHITA KS 670
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Column A: no change.
Column B added: 577.
Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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515-516, 680-681, 683-689
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515-516, 680-681, 683-689
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144-146, 148-149, 167, 369, 375, 380-383, 386-393, 396-397, 400-406, 410, 413-414, 420, 423-424, 427, 430-438, 440-443, 446-495, 498-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-577, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 710-714, 716-725, 728, 730-731, 733-741, 743-770, 772-784, 786-797, 800-812, 814-816, 820, 822-828, 881-882
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369, 375, 380-383, 386-393, 396-397, 400-406, 410, 413-414, 420, 423-424, 427, 430-438, 440-443, 446-495, 498-516, 520-528, 530-532, 534-535, 537-551, 553-567, 570-577, 580-588, 600-620, 622-631, 633-641, 644-658, 660-662, 664-681, 683-693, 710-714, 716-725, 728, 730-731, 733-741, 743-770, 772-784, 786-797, 800-812, 814-816, 820, 822-828, 881-882
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OMAHA NE 680
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OMAHA NE 680
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Column A: no change. Column B deleted: 144-146, 148-149, 167. Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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798-799, 880, 883, 885
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798-799, 880, 883, 885
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500-503, 505, 508-516, 525, 570-571, 577, 590-593, 597, 620, 622, 628-631, 633-641, 644-658, 660-662, 664-681, 686-687, 690-693, 710-714, 718, 730-731, 733-741, 743-770, 772-775, 778-816, 820-831, 833, 836-837, 840-847, 850-853, 855-857, 859-860, 863-865, 870-871, 873-885, 888-891, 893, 898, 900-908, 910-928, 930-935, 979
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500-503, 505, 508-516, 525, 570-571, 577, 590-593, 597, 620, 622, 628-631, 633-641, 644-658, 660-662, 664-681, 686-687, 690-693, 710-714, 718, 730-731, 733-741, 743-770, 772-775, 778-816, 820-828, 833, 836-837, 845-847, 850-853, 855-857, 859-860, 863-865, 870-871, 873-885, 889-891, 893, 900-908, 910-928, 930-935, 979
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EL PASO TX 798
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EL PASO TX 798
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Column A: no change. Column B deleted: 829-831, 840-844, 888, 898. Column C: no change.
Column A Originating ZIP Codes (Change From)
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Column A Originating ZIP Codes (Change To)
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Column B Label To (Change From)
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Column B Label To (Change To)
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Column C Label Container To (Change From)
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Column C Label Container To (Change To)
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813, 865, 870-871, 873-879, 884
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813, 865, 870-871, 873-879, 884
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500-503, 505, 508-516, 525, 570-571, 577, 590-593, 597, 620, 622, 628-631, 633-641, 644-658, 660-662, 664-676, 678-681, 686-687, 710-714, 718, 730-731, 733-741, 743-770, 772-775, 778-816, 820-831, 833, 836-837, 840-847, 850-853, 855-857, 859-860, 863-865, 870-871, 873-885, 888-891, 893, 898, 900-908, 910-928, 930-935, 979
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500-503, 505, 508-516, 525, 570-571, 577, 590-593, 597, 620, 622, 628-631, 633-641, 644-658, 660-662, 664-676, 678-681, 686-687, 710-714, 718, 730-731, 733-741, 743-770, 772-775, 778-816, 820-828, 833, 836-837, 845-847, 850-853, 855-857, 859-860, 863-865, 870-871, 873-885, 889-891, 893, 900-908, 910-928, 930-935, 979
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ALBUQUERQUE NM 870
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ALBUQUERQUE NM 870
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Column A: no change. Column B deleted: 829-831, 840-844, 888, 898. Column C: no change.
L606 5-Digit Scheme—Standard Mail, First-Class Mail, and Package Services Parcels
Changes
Newly Added
Deleted
Note: Effective January 1, 2027, the Postal Service™ will discontinue publishing Labelling Lists L004, L009, L010, L015, L601, L602, and L605. These lists are no longer being updated, and Mailers must not use these lists for generating labels.
— Logistics, Network Development, and Support, Network Operations, 9-17-26
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