| Module | Name | Users | DPlus | DExtra | DCS |
|---|---|---|---|---|---|
| URCALL | URCALL | URCALL | |||
| A | LEGACY REF001C | 2 | REFJETAL | XRFJETAL | DCSJETAL |
| B | LEGACY REF014C | 1 | REFJETBL | XRFJETBL | DCSJETBL |
| C | LEGACY REF024C | 1 | REFJETCL | XRFJETCL | DCSJETCL |
| D | LEGACY REF030C | 1 | REFJETDL | XRFJETDL | DCSJETDL |
| E | LEGACY REF004C RAG CHEW | 1 | REFJETEL | XRFJETEL | DCSJETEL |
| F | LEGACY REF012C PAPA SYSTEM | 1 | REFJETFL | XRFJETFL | DCSJETFL |
| G | LEGACY REF037C FLORIDA | 1 | REFJETGL | XRFJETGL | DCSJETGL |
| H | LEGACY REF058C ALABAMA | 1 | REFJETHL | XRFJETHL | DCSJETHL |
| I | LEGACY REF056C KENTUCKY | 1 | REFJETIL | XRFJETIL | DCSJETIL |
| J | LEGACY REF055C NEW MEXICO | 0 | REFJETJL | XRFJETJL | DCSJETJL |
| K | LEGACY REF054C CAROLINA | 1 | REFJETKL | XRFJETKL | DCSJETKL |
| L | LEGACY REF051C CHICAGO | 1 | REFJETLL | XRFJETLL | DCSJETLL |
| M | LEGACY REF038C OHIO | 1 | REFJETML | XRFJETML | DCSJETML |
| N | LEGACY REF013C LONDON | 0 | REFJETNL | XRFJETNL | DCSJETNL |
| O | Not In Use | 0 | REFJETOL | XRFJETOL | DCSJETOL |
| P | Not In Use | 0 | REFJETPL | XRFJETPL | DCSJETPL |
| Q | N6JET 6-LINK D-STAR LEG | 1 | REFJETQL | XRFJETQL | DCSJETQL |
| R | XRF002A CONSTELLATION | 1 | REFJETRL | XRFJETRL | DCSJETRL |
| S | XRF757A QUADNET | 1 | REFJETSL | XRFJETSL | DCSJETSL |
| T | XRF757B QUAD TECH | 1 | REFJETTL | XRFJETTL | DCSJETTL |
| U | DCS002A WORLDWIDE | 1 | REFJETUL | XRFJETUL | DCSJETUL |
| V | DCS005A UNITED KINGDOM | 1 | REFJETVL | XRFJETVL | DCSJETVL |
| W | DCS006A USA | 1 | REFJETWL | XRFJETWL | DCSJETWL |
| X | DCS014A AUSTRALIA | 1 | REFJETXL | XRFJETXL | DCSJETXL |
| Y | Not In Use | 0 | REFJETYL | XRFJETYL | DCSJETYL |
| Z | ECHO TEST | 0 | REFJETZL | XRFJETZL | DCSJETZL |