wa: Walloon language
Verify this language code:
✔ wa is a well-formed language code. 
✔ This seems to be a code for an actual language.
✔ This language code is enabled on Translatewiki.
MediaWiki core messages: 31.93 %: 1251 / 3918 messages
Most important messages: 82.35 %: 476 / 578 messages
Collection extension: 1.74 %: 3 / 172 messages
ProofreadPage extension: 56.22 %: 104 / 185 messages
Android Wikipedia app: 0.05 %: 1 / 2187 messages
iOS Wikipedia app: 0.0 %: 0 / 1839 messages
Main extensions used by Wikimedia: 5.01 %: 355 / 7085 messages
Most important messages: 82.35 %: 476 / 578 messages
Collection extension: 1.74 %: 3 / 172 messages
ProofreadPage extension: 56.22 %: 104 / 185 messages
Android Wikipedia app: 0.05 %: 1 / 2187 messages
iOS Wikipedia app: 0.0 %: 0 / 1839 messages
Main extensions used by Wikimedia: 5.01 %: 355 / 7085 messages
✔ This language code is available for general use in MediaWiki.
✔ This language is available for general use on Wikidata.