With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnosSysInfoAddrCapacity
Cisco Network Office Switch Sys Info Address Capacity
1.3.6.1.4.1.9.10.43.1.1.4
The system-wide maximum number of addresses supported.
Back to CISCO-CNO-SWITCH-MIB MIB page.
IPHost Network monitor allows you to monitor cnosSysInfoAddrCapacity on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.