With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
callHomeSiteId
call Home Site Id
1.3.6.1.4.1.9.9.300.1.1.7
A location identifier of this device.
Back to CISCO-CALLHOME-MIB MIB page.
IPHost Network monitor allows you to monitor callHomeSiteId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.