n2m.net
What separates a good short domain from a licence plate is whether the reader has anything to parse. The X-to-Y form supplies that, which is why it has outlasted every other short-naming fashion.
N2M reads as network to mobile, news to media, node to mesh, or need to match. That last one suits any marketplace or matching platform, which is a large and permanent category. Network to mobile fits telecoms and connectivity, where the .net is exactly right.
Three characters is the shortest length at which a domain is still held in memory as a unit rather than as separate letters, and the inventory across every major extension was fully claimed decades ago. What circulates is what existing holders release.
No spelling ambiguity, no hyphen, fits in any logo, survives being said aloud once.
The name is available. Offers welcome.