The February 25, 2019 issue of FAAST Blast includes the following item about FAA’s plan to publish ATC telephone numbers in the Chart Supplement. You can read more details and see examples at earlier entries here at BruceAir:
Leidos FSS has posted ARTCC clearance/cancelation phone numbers on its website, here.
FAA Completes Clearance Relay Initiative
Flight Service will complete the Clearance Relay initiative on June 20 when it publishes the remaining phone numbers for pilots to obtain IFR clearances at public- and private-use airports, from either the overlying Air Route Traffic Control Center (ARTCC) Flight Data Units, or an approach control facility. As part of modernization efforts to streamline service delivery and increase efficiency, pilots now call directly to obtain or cancel an IFR clearance, reducing the risk of potential errors.
Last year, Flight Service formalized a process already in place by publishing phone numbers for 30 approach controls covering 667 public use airports, providing pilots direct contact with the controlling facility. Last fall, another 26 approach control facilities covering 226 public-use and 3,000 private-use airports had numbers published in the Chart Supplement, US and subscriber files.
Leidos Flight Service will provide pilots with the name of the facility to contact or the correct phone number to obtain or cancel an IFR clearance. Pilots may continue to request clearances via radio from air traffic control or Flight Service.
You can find the phone numbers for clearance delivery in the remarks section of the entry for each airport in the Chart Supplement, US. This initiative does not affect pilots requesting clearances from Flight Service over Remote Communications Outlets (RCO), Ground Communication Outlets (GCO), or from locations in Alaska. For more information, visit https://go.usa.gov/x5wsR.
BruceAir, LLC 