I always remember just few of the most important MAP operation codes values, but sometimes need to quickly find out which MAP operation is hidden under digital value. Below is the list of almost all MAP operation codes, that are used in GSM networks. Most popular ones are in bold. You can bookmark this page (link is static) to have quick access for this data.
| MAP Message | Operation Code |
| updateLocation | 2 |
| cancelLocation | 3 |
| provideRoamingNumber | 4 |
| noteSubscriberDataModified | 5 |
| resumeCallHandling | 6 |
| insertSubscriberData | 7 |
| deleteSubscriberData | 8 |
| registerSS | 10 |
| eraseSS | 11 |
| activateSS | 12 |
| deactivateSS | 13 |
| interrogateSS | 14 |
| authenticationFailureReport | 15 |
| registerPassword | 17 |
| getPassword | 18 |
| releaseResources | 20 |
| mt-ForwardSM-VGCS | 21 |
| sendRoutingInfo | 22 |
| updateGprsLocation | 23 |
| sendRoutingInfoForGprs | 24 |
| failureReport | 25 |
| noteMsPresentForGprs | 26 |
| sendEndSignal | 29 |
| processAccessSignalling | 33 |
| forwardAccessSignalling | 34 |
| reset | 37 |
| forwardCheckSS-Indication | 38 |
| checkIMEI | 43 |
| mt-ForwardSM | 44 |
| sendRoutingInfoForSM | 45 |
| mo-ForwardSM | 46 |
| reportSM-DeliveryStatus | 47 |
| activateTraceMode | 50 |
| deactivateTraceMode | 51 |
| sendIdentification | 55 |
| sendAuthenticationInfo | 56 |
| restoreData | 57 |
| sendIMSI | 58 |
| processUnstructuredSS-Request | 59 |
| unstructuredSS-Request | 60 |
| unstructuredSS-Notify | 61 |
| anyTimeSubscriptionInterrogation | 62 |
| informServiceCentre | 63 |
| alertServiceCentre | 64 |
| anyTimeModification | 65 |
| readyForSM | 66 |
| purgeMS | 67 |
| prepareHandover | 68 |
| prepareSubsequentHandover | 69 |
| provideSubscriberInfo | 70 |
| anyTimeInterrogation | 71 |
| setReportingState | 73 |
| statusReport | 74 |
| remoteUserFree | 75 |
| provideSubscriberLocation | 83 |
| noteMM-Event | 89 |
