California non-resident taxes

[norcal48]

I live in North Carolina and all business is conducted FROM NC.  Most of my clients are in California.  All of my income is 1099 NEC from insurance companies all over the USA.  Do I pay non-resident taxes on ALL of my income to California or only for income generated by my cleints in California?  I know that I must include ALL of my income in my NC resident tax return.

[MaryK4]

If you performed the work in North Carolina, you do not have to report or pay nonresident California income tax.