FY2025 obligations by the NAICS code on the award
80% of the $932.1M obligated under D304 in FY2025 went to awards coded NAICS 517110.
- 517110 Wired Telecommunications Carriersnot in NAICS 2022$746.1M
- 517311 Wired Telecommunications Carriersnot in NAICS 2022$25.0M
FY2025 federal contract obligations, USAspending.gov
PSC D304 covered telecommunications and transmission services under the pre-2020 D3xx series. It was end-dated along with 67 other IT codes in the October 2020 restructure and does not appear in the current PSC Manual. FY2025 still recorded $932 million against it.
Two retired codes, one long contract
$746 million, roughly 80 percent of the code, sits under NAICS 517110, Wired Telecommunications Carriers, which the 2017 NAICS revision replaced with 517311, itself replaced by 517111 in 2022. A retired PSC paired with a retired NAICS code is the signature of long-running circuit and transmission contracts that have been modified across two classification regimes without being recompeted. Satellite telecommunications 517410 adds $114 million, computer systems design 541512 adds $63 million, and facilities support 561210 adds $13 million.
The PSC and NAICS distinction, once
The PSC is chosen by the contracting officer to describe the buy; the NAICS code is chosen by the same officer to name the industry of the work, and the two code systems are revised on entirely separate schedules.
For anyone selling transport, circuits, or transmission services today: the live codes are DG11 for access and usage, DG10 for managed network, and DG01 for network support labor. Keep D304 in your historical analysis to spot incumbents whose awards predate the restructure, and treat any current listing under it as a data-entry artifact.
PSC D304 FAQ
What does PSC D304 cover?
Telecommunications and transmission services under the legacy D3xx series. The code was end-dated in the October 2020 PSC restructure and is not in the current manual.
What NAICS codes win D304 work?
NAICS 517110 took $746 million of $932 million in FY2025, about 80 percent, with Satellite Telecommunications (517410) at $114 million.
Why are both the PSC and the NAICS code retired?
The PSC was retired in 2020, and NAICS 517110 was replaced by 517311 in the 2017 revision and by 517111 in 2022. Awards signed before both changes keep their original codes as modifications continue to book against them.
What should I search instead?
DG11 for telecom access and usage billing, DG10 for managed network services, and DG01 for network support labor.