Three codes could be found in the Feathered Ghosts post on the Investigate Ingress blog.
[1] 04b0db0cc06c0ac0ca0ca0ab0da08b00b0da0fa06c0ac0aa02b04b
[2] ojwtiivisu53uq53rpiiivie0101u
[3] pmz53g244bi
Code #1
Observations
54 characters, look like hex but not in the right range.
Code #2
Observations
A mix of just about anything, you’ll need to look at it in a different way.
[hint]Try r3v3s1ng 1t[/hint]
Code #3
Observations
Well the code format is there. How many keyword have only 1 letter ?