Network distribution center

A network distribution center (NDC) was a highly mechanized mail processing plant of the United States Postal Service that distributed standard mail and package services in piece and bulk form.[1] The NDC network was dismantled in 2022-2023 by the USPS as part of Postmaster General Louis DeJoy’s Delivering for America network rationalization plan, which saw mail classes formerly handled by the NDC network merged into mailstreams in processing and distribution centers. Each former NDC, all of which were located in buildings owned by USPS, are implementing or in the process of creating individual plans for repurposing the buildings. Many are being restacked into RPDCs, which will form the backbone of the new USPS network, whereas others are being used to insource previously outsourced transportation functions such as surface transfer centers (STCs), or terminal handing services (THS), which handled airmail, in addition to continuing to support processing and distribution centers with the handing of priority and ground advantage parcels .[2]

List of network distribution centers[edit]

The United States Postal Service had 21 NDCs:[3]

Destination ZIP NDC name Location
005, 066, 068-079, 085-119 New Jersey NDC  Jersey City, NJ
006-009[1], 313-317, 320-342, 344, 346-347, 349, 398 Jacksonville NDC  Jacksonville, FL
010-065, 067, 120-129 Springfield NDC  Springfield, MA
080-084, 169-199, 254 Philadelphia NDC  Philadelphia, PA
130-168, 260, 265, 439-449 Pittsburgh NDC  Warrendale, PA
200-212, 214-239, 244, 267-268 Washington NDC  Capitol Heights, MD
240-241, 243, 245, 270-297, 299 Greensboro NDC  Greensboro, NC
242, 298, 300-312, 318-319, 350-352, 354-368, 373-374
376-379, 394, 395, 399, 407-409, 417-418, 425-426
Atlanta NDC  Atlanta, GA
246-253, 255-259, 261-264, 266, 400-406, 410-416, 427
430-433, 437-438, 450-462, 469-474, 478-479
Cincinnati NDC  Cincinnati, OH
369-372, 375, 380-393, 396-397, 421-422, 700-701
703-708, 716-717, 719-729
Memphis NDC  Memphis, TN
420, 423-424, 475-477, 609, 613-620, 622-631, 633-634, 636-639 St. Louis NDC  Hazelwood, MO
434-436, 465-468, 480-497 Detroit NDC  Allen Park, MI
463-464, 530-532, 534-535, 537-539, 549, 600-608, 610-611 Chicago NDC  Forest Park, IL
498-499, 540-548, 550-551, 553-567, 576, 580-588 Minneapolis–Saint Paul NDC  Eagan, MN
500-516, 520-528, 570-575, 577, 612, 680-681, 683-689 Des Moines NDC  Des Moines, IA
590-599, 677, 690-693, 800-816, 820-834, 836-837, 840-847
850-853, 855-857, 859-860, 863, 865, 870-871, 873-879, 884, 898, 979
Denver NDC  Denver, CO
635, 640-641, 644-658, 660-662, 664-676, 678 Kansas City NDC  Kansas City, KS
679, 710-714, 718, 730-731, 733-741, 743-770, 772-799, 880-883, 885 Dallas NDC  Dallas, TX
835, 838, 970-978, 980-986, 988-999 Seattle NDC  Federal Way, WA
864, 889-891, 893, 900-908, 910-928, 930-935 Los Angeles NDC  Bell Gardens, CA
894-895, 897, 936-969 San Francisco NDC  Richmond, CA

^ For mail originating in ZIP Code Areas 006-009 and addressed to addresses in those ZIP Code Areas, the sectional center facility in San Juan, Puerto Rico serves as the NDC.[3]

List of international service centers[edit]

The United States Postal Service also has 4 international service centers (ISC) for distributing international mail:[4]

Origin ZIP ISC name Airport Location
005, 010-089, 100-212, 214-268, 270-297, 400-418, 420-427, 470-477 ISC New York NY John F. Kennedy International Airport  New York City, NY
006-009, 298-342, 344, 346-347, 349-352, 354-399 ISC Miami FL Miami International Airport  Miami, FL
090-098, 424, 430-469, 478-516, 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, 743-799, 885, 962-966
ISC Chicago IL O'Hare International Airport  Chicago, IL
590-599, 800-816, 820-838, 840-847, 850-853, 855-857, 859-860, 863-865, 870-884, 889-891, 893-895, 897-898, 900-908, 910-928, 930-961, 967-969

970-986, 988-999

ISC Los Angeles CA Los Angeles International Airport  Los Angeles, CA

In addition to the four ISCs, the postal service has four International Exchange Offices (IEOs), which are authorized to accept and process limited inbound and outbound international mail volumes. IEOs handle less than 5% of international volume, and do not have the full capabilities and functions of ISCs. Currently, the postal service has four active IEOs: The New Jersey Network Distribution Center in Jersey City, NJ, the Honolulu Processing and Distribution Center in Honolulu, HI, the Pago Pago Main Post Office in Pago Pago, American Samoa, and the Barrigada Post Office in Barrigada, Guam.

See also[edit]

References[edit]

  1. ^ Quick Service Guide 800: Glossary of Postal Terms and Abbreviations in the DMM
  2. ^ Hutkins, Steve (2023-02-16). "The Postal Service unwinds the NDC network and merges the mail streams". Save the Post Office. Retrieved 2024-07-11.
  3. ^ a b "L601 Network Distribution Centers (NDCs)". USPS.com. Retrieved 2020-08-28.
  4. ^ "International Service Center (ISC) Zone Chart Technical Guide". USPS.com. Retrieved 2022-07-14.