With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cItpXuaAsrRoutingContext
Cisco IP Transfer Point Xua Asr Routing Context
1.3.6.1.4.1.9.9.253.1.12.1.1.4
An AS may be configured to serve more than one ASRoute. In this case, the Routing Context parameter is exchanged between the SG and the ASP, identifying the relevant AS. The Routing Context uniquely identifies the range of traffic associated with a particular AS, which the ASP is configured to receive.
Back to CISCO-ITP-XUA-MIB MIB page.
IPHost Network monitor allows you to monitor cItpXuaAsrRoutingContext 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.