If you visit the ARRL website and search on Band Plan you will get a detailed plan for 2 meters (and all other bands). If you look at the nice colored chart, then the 2 meter band plan is not clear. The band from 144.100Mz to 144.200Mz is for EME and weak signal SSB. The segment from 144.200Mz to 144.275Mz is SSB with 144.200Mz as the calling frequency.