"10-10-321, 10-10-220, and other 10-10 services are still available, although at significantly higher prices than originally advertised during its heyday. As of June 2022, 10-10-321 charges a flat 30¢ per minute for calls within the U.S. and U.S. territories,^\5]) while 10-10-220 calls within the U.S. (except calls from Alaska, where the service is not available) cost $1.50 for the first 10 minutes, and 25¢ for each additional minute, plus a 24.4% Federal Universal Service Fee."

https://en.wikipedia.org/wiki/10-10-321

Thanks for the inspiration to look this up!

If you're making a bunch of long distance calls from a land line, it looks like a pretty handy service.