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.Quick Service Guide 800: Glossary of Postal Terms and Abbreviations in the DMM 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 .

List of network distribution centers The United States Postal Service has 20 NDCs:

Destination ZIP NDC name Location 005, 066, 068–079, 085–119 New Jersey NDC 006–009, 313–317, 320–342, 344, 346–347, 349, 398 Jacksonville NDC 010–065, 067, 120–129 Springfield NDC 080–084, 169–199, 254 Philadelphia NDC 130–168, 260, 265, 439–449 Pittsburgh NDC 200–212, 214–223, 226–228, 267–268 Washington NDC 240–241, 243, 245, 270–278, 283–296, 299 Greensboro NDC 246–253, 255–259, 261–264, 266, 400–406, 410–416, 427, 430–433, 437–438, 450–462, 469–474, 478–479 Cincinnati NDC 369–372, 375, 380–393, 396–397, 421–422, 700–701 703–708, 716–717, 719–729 Memphis NDC 420, 423–424, 475–477, 609, 613–620, 622–631, 633–634, 636–639 St. Louis NDC 434–436, 465–468, 480–497 Detroit NDC 463–464, 530–532, 534–535, 537–539, 549, 600–608, 610–611 Chicago NDC 498–499, 540–548, 550–551, 553–567, 576, 580–588 Minneapolis–Saint Paul NDC 500–516, 520–528, 570–575, 577, 612, 680–681, 683–689 Des Moines NDC 590–599, 677, 690–693, 800–816, 820–831, 840–846, 850–853, 855–857, 859–860, 863, 865, 870–871, 873–879, 884, 898 Denver NDC 635, 640–641, 644–658, 660–662, 664–676, 678 Kansas City NDC 679, 710–714, 718, 730–731, 733–741, 743–770, 772–799, 880–883, 885 Dallas NDC 835, 838, 980–985, 988–999 Seattle NDC 847, 864, 889–891, 893, 900–908, 910–928, 930–935 Los Angeles NDC 894–895, 897, 936–969 San Francisco NDC

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.

List of international service centers

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

Origin ZIP ISC name Airport Location005, 010–089, 100–212, 214–268, 270–297, 400–418, 420–427, 470–477ISC New York NYJohn F. Kennedy International Airport006–009, 298–342, 344, 346–347, 349–352, 354–399ISC Miami FLMiami International Airport090–098, 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, 962–966ISC Chicago ILO'Hare International Airport590–599, 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, 988–999ISC Los Angeles CALos Angeles International Airport 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 List of United States post offices Sectional center facility (SCF) United States Postal Service

References