With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgsccpGttMapRefCount
Cisco GSCCP Gtt Map Ref Count
1.3.6.1.4.1.9.9.335.1.4.1.1.23
The number of global title addresses referring to this MAP entry.
Back to CISCO-ITP-GSCCP-MIB MIB page.
IPHost Network monitor allows you to monitor cgsccpGttMapRefCount on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.