It looks like Iridium (remember them?) is planning a new constellation.
Should be a great money-making opportunity for any startup launch companies…but given what happened in the late 1990s to the much-touted opportunities for launching and replenishing the present constellation, they might not want to put all their eggs in the Iridium basket.
During my interview at Sunnyvale (back in 2001), they took us on a tour of building 159. I noticed a stack of Iridium satellites sitting over in one corner. “Oh yeah,” the tour guide said, “those are the spares.”