With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ospfAreaRangeMask
ospf Area Range Mask
1.3.6.1.2.1.14.5.1.3
The subnet mask that pertains to the net or subnet.
Back to OSPF-MIB MIB page.
IPHost Network monitor allows you to monitor ospfAreaRangeMask 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.