- {{< fa envelope >}} Mailingsliste Hamburg: [talk](https://www.hamburg.ccc.de/mailman/listinfo/talk)
- {{< fa envelope >}} E-Mail an den CCC Hamburg: <mail@hamburg.ccc.de>
- {{< fa envelope >}} Verwaltung des CCC Hamburg: <buero@hamburg.ccc.de>
- {{< fa brands mastodon >}} Fediverse: [@ccchh@chaos.social](https://chaos.social/@ccchh)
- {{< fa comments >}} Matrix Space: [#ccchh-space:hamburg.ccc.de](https://matrix.to/#/#ccchh-space:hamburg.ccc.de)
- {{< fa comments >}} Internet Relay Chat: [hackint.eu](https://webirc.hackint.org/#irc://irc.hackint.org/#ccchh?nick=) [#ccchh](ircs://hackint.eu/ccchh)