The State Public Service Commission is taking public comment on deployment of a new area code that affects Delaware County and 8 other counties. Those counties are currently in the 845 area code. Comments are accepted at dps.ny.gov by March 27.
Source:
https://www3.dps.ny.gov/pscweb/WebFileRoom.nsf/ArticlesByCategory/0FBA7B2E9763E771852587D60053D505/$File/pr22011.pdf