The City does not maintain the utility poles. These are maintained by various agencies – you will want to contact them directly to let them know of the issue:
The wire/pole is closest to the ground: These are communication poles.
These are maintained by more than one agency – most likely AT&T or Xfinity. You can call either one and they will investigate the issue.
AT&T: 1-800-288-2020
Xfinity: 1-800-934-6489
(note: you do not have to have an account with these companies, but you will need to ask to speak with a representative when you call.)
If possible, note the number on the pole so that you can share that with agency representative. ex:
The wire/pole is higher up: These are PG&E poles.
You can notify PG&E in various ways. Please see their website here: PG&E Potential Safety Issue
You can also call: 1-800-743-5000