Partial mainline stoppage affecting kitchen and half bathroom area. Mainline clean outs in front yard will not service this section of pipe. In an attempt to clear blockage, I accessed the 2” clean out located outside of kitchen wall exterior and ran snake a total of 50ft and was able to clear the blockage. No material retrieved on snake. Ran water at kitchen and had customer flush toilet several times while I was at the clean outs in front yard and confirmed toilet flushing and water passing through to the city connection.