[Note: Experimental]   I had a look a the python-vm implementation it seems that adding this name in your Main will print the package name in the logs. class Main(ncs.application.Application): def setup(self): # The application class sets up logging for us. It is accessible # through 'self.log' and is a ncs.log.Log instance. self.log.info('Main RUNNING') self.log.info('Package name:', self._ncs_pname) Now I tried several ideas to pass this name to the cb_create which sounds to be what you want but they may not be "very clean" 1. make this a global variable (I tried it out by setting it in Main and using it in cb_create and this worked but well - that makes a global variable and it may not cover everything you need) 2. pass it as an init argument in the register_service function (leveraging the def init(self, init_args) function of the Service class) class ServiceCallbacks(Service): def init(self, init_args=None): self.package_name = init_args self.log.warning("Package Name: ", self.package_name) # The create() callback is invoked inside NCS FASTMAP and # must always exist. @Service.create def cb_create(self, tctx, root, service, proplist): self.log.info('Service create(service=', service._path, ')') self.log.warning("CB create Package Name: ", self.package_name) class Main(ncs.application.Application): def setup(self): self.log.info('Main RUNNING') self.register_service('test-servicepoint', ServiceCallbacks, init_args=self._ncs_pname) Logs (the First WARNING is from the init where I set the variable for the Service, the second when I commit a new instance of the service): <INFO> 14-Oct-2019::14:01:47.603 test MainThread: - Python 2.7.14 (default, Apr 25 2018, 15:30:04) [GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)] <INFO> 14-Oct-2019::14:01:47.603 test MainThread: - Starting... <INFO> 14-Oct-2019::14:01:47.605 test MainThread: - Started <INFO> 14-Oct-2019::14:01:47.697 test ComponentThread:main: - Main RUNNING <WARNING> 14-Oct-2019::14:01:47.700 test ncs-dp-1370-test:main: - Package Name: test <INFO> 14-Oct-2019::14:01:53.395 test ncs-dp-1370-test:main-1-th-669: - Service create(service=/test:test{667}) <WARNING> 14-Oct-2019::14:01:53.395 test ncs-dp-1370-test:main-1-th-669: - CB create Package Name: test It looks like _ncs_pname corresponds to the package name and there is a cname that may be the component ( I have checked with a couple of my packages and it seems to work)   3. Probably some other method I did not think about..    Hope that can get you started, good luck! ... View more