65xxx are Supergroups(Multiselect/patch) they can show up anywhere on the network and are usually used when toning out multiple departments. Schertz, Universal City, Live Oak, Cibolo, and Selma are all part of the Randolph Metrocom area and usually have patches in the 653xx range. as Rattler stated earlier, there may be someone up in the Brown county area that has a radio tuned to Schertz EMS Talkgroup and that is why all the supergroup patches are appearing. I mentioned the Schertz EMS Talkgroup specifically because they handle EMS for all the above cities mentioned earlier and is usually patched for each call that goes out in that area.