Look up toll-free number routing. Resolves a CRN (toll-free number) to its carrier (CIC), Responsible Organization (ROR), or both. CIC lookup interprets the CPR decision tree using the caller's ANI and LATA to determine which carrier handles the call.

List toll-free numbers (TFNs) or Call Processing Records (CPRs) associated with a Responsible Organization (ROR). Use this to explore which toll-free numbers a specific organization manages.

Retrieve the full Call Processing Record (CPR) for a toll-free number. A CPR is a routing decision tree that determines how calls are routed based on LATA, NPA, NXX, ANI, DAY_OF_WEEK, TIME_OF_DAY, PERCENT, STATE, etc. Returns the CPR structure, SHA1 hash, ROR, and optionally expanded template references.

Look up the Local Routing Number (LRN) for a phone number. Returns the LRN, SPID (Service Provider ID), LNP type, and activation timestamp. LRN identifies the switch that serves a ported phone number. This queries live LSMS/NPAC porting data.

Query relationships in the LSMS database. Find phone numbers by LRN, SPIDs by LRN or phone number, or LRNs by SPID or phone number. Queries live NPAC porting data (not static LERG reference data).

Check if a phone number is on the Do Not Originate (DNO) list. DNO numbers should never appear as a caller ID because they belong to entities that only receive calls (e.g., IRS, major banks). A match indicates potential caller ID spoofing. Supports prefix matching (3, 6, 7, or 10 digit patterns).

Look up the Caller Name (CNAM) for a phone number via TransUnion LIDB. Returns the calling_name (up to 15 characters), calling_name_status (available/unavailable), and presentation_indicator (allowed/restricted). Results are cached server-side for 24 hours.

List all 27 LERG tables or get metadata/schema for a specific table. LERG is static telecom reference data. Key tables: lerg_1 (OCN/carrier directory), lerg_6 (NPA-NXX block assignments with switch, LATA, rate center), lerg_7 (switch details), lerg_7_sha (switch homing arrangements/tandems), lerg_12 (LRN registry).

Query any LERG table by field values. Common queries: carrier by OCN (lerg_1, fields: ocn_num,ocn_name,ocn_state), NPA-NXX info (lerg_6, fields: npa,nxx,loc_name,ocn,switch,lata), switch details (lerg_7, fields: switch,ocn,aocn), LRN registry (lerg_12, fields: lrn,lata,switch,ocn). Filter format: field=value, multiple filters joined with & (e.g. npa=303&nxx=629).

Execute a complex LERG query with JOINs across multiple tables. Supports filter operators: eq, ne, gt, gte, lt, lte, like, in, isnull, isnotnull. Use this when you need to combine data from different LERG tables, such as joining NPA-NXX (lerg_6) with carrier info (lerg_1) via OCN.

Look up tandem routing information. Query by NPA+NXX, switch CLLI, tandem CLLI, or carrier name pattern. Returns tandem switch, OCN, LATA, and routing path via SQL JOINs across lerg_6, lerg_7_sha, and lerg_1.

Execute GraphQL queries against LSMS or LERG. These are DISTINCT APIs with different schemas — do not mix their syntax.

LSMS (service='lsms'): Live NPAC porting data. Uses named query parameters (NOT FilterInput). Key queries: subscriptionVersion(phoneNumber), subscriptionVersionsByLrn(lrn, limit), subscriptionVersionsBySpid(spid, limit), numberBlock(npanxxx), serviceProviders(limit), locationRoutingNumber(lrn), npanxxBySpid(spid, limit), lsmsStats. Relationships: subscriptionVersion→serviceProvider, →lrnMetadata. Safety limits: max 1000 results, 10s timeout. Large tables (subscriptionVersions 514M rows) MUST be filtered.

LERG (service='lerg'): Static telecom reference. Uses FilterInput with operators. 27 tables with camelCase names (lerg1, lerg6, lerg7Sha). Return fields MUST be camelCase (ocnName not ocn_name). LIKE patterns MUST be UPPERCASE. Filter syntax: { field: "ocnName", op: LIKE, value: "%VERIZON%" }. IN uses 'values' plural. Relationships: lerg6→carrier, →switchInfo, →homingArrangements. Also supports dynamicJoin for arbitrary cross-table SQL joins.

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.

Returns the Telique MCP server version, authentication mode, and API connectivity status. Use this when asked about the server version or connection status.