Colorado Springs Annexation?

[Thomas Beuerman]

I'm working with a gentleman who owns two 5 acre plots (under same deed) in Colorado Springs.  It's zoned as RR-5 (residential rural).  It appears that it is in a chunk of land that is outside the city limits (but surrounded by the city limits, if I understand the zoning map correctly).  How do I verify that and also if it able to be annexed or not?  Must it directly border the "city limit"?  Any other thoughts or leading questions are appreciated as well! Thanks!