With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dmAssignedAreaIdList
Cisco Domain Management Assigned Area Id List
1.3.6.1.4.1.9.9.302.1.1.1.1.11
The list of Area IDs which have been assigned in this VSAN, formatted as an array of octets in ascending order. There could zero or more Area IDs assigned on this VSAN. Area ID is an 8-bit value. And therefore, each octet represents one Area ID. So, the list containing the area_IDs 23, 45, 235 and 56 would be formatted as the 4-octet string x'172d38eb'. Each of these area_IDs can be used as an index to the dmAreaTable to get the statistics on the area.
Back to CISCO-DM-MIB MIB page.
IPHost Network monitor allows you to monitor dmAssignedAreaIdList 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.