Composite phone number lookup across multiple Telique services. Dips LRN, CNAM, DNO, and LERG (NPA-NXX from lerg_6) in parallel and returns a consolidated view. Use this for a quick, comprehensive profile of any phone number.
AI agents call lookup_tn to retrieve information from Telique MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only query tool that retrieves telecom routing and caller identification data from multiple sources. While the data accessed (LRN, CNAM, DNO routing information) could be sensitive and enable phone enumeration or reconnaissance attacks, the tool itself performs only data retrieval without side effects.
From the tool's definition Tool description states it 'Dips LRN, CNAM, DNO, and LERG' and 'returns a consolidated view' of phone number data. The verb 'lookup' and 'Composite phone number lookup' indicate data retrieval with no modification or deletion.
Attacks that exploit this kind of access
Composite phone number lookup across multiple Telique services. Dips LRN, CNAM, DNO, and LERG (NPA-NXX from lerg_6) in parallel and returns a consolidated view. Use this for a quick, comprehensive profile of any phone number. It is categorised as a Read tool in the Telique MCP MCP Server, which means it retrieves data without modifying state.
Register the Telique MCP server in PolicyLayer and add a rule for lookup_tn: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Telique MCP. Nothing to install.
lookup_tn is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the lookup_tn rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for lookup_tn. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
lookup_tn is provided by the Telique MCP server (ringer/telique-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →