How to filter out strings starting with any from a list of strings

[michael_c_michael (michael)]

Hi, I'm wanting to filter out strings starting with a number of characters. I've been able to solve this using a DSL query. Let me provide the example first:

# Cleanup
DELETE discuss-338708

# Create an index
PUT discus-338708
{
  "mappings": {
    "properties": {
      "ts": {"type": "date"},
      "entityID": { "type": "keyword"}
    }
  }
}

# Add some data
POST discuss-338708/_bulk
{ "index": {}}
{ "ts": "2023-07-19T12:42:55+0200", "entityID": "1.1.225.0.5.0.0"}
{ "index": {}}
{ "ts": "2023-07-19T12:22:55+0200", "entityID": "2.10.225.1.7.1.0"}
{ "index": {}}
{ "ts": "2023-07-19T12:12:55+0200", "entityID": "0.0.0.0.0.0.0"}
{ "index": {}}
{ "ts": "2023-07-19T12:02:55+0200", "entityID": "1.1.225.28.25.0.0"}
{ "index": {}}
{ "ts": "2023-07-19T11:52:55+0200", "entityID": "2.10.225.1.7.1.0"}
{ "index": {}}
{ "ts": "2023-07-19T11:42:55+0200", "entityID": "5.2.225.0.1.0.0"}
{ "index": {}}
{ "ts": "2023-07-19T11:32:55+0200"}
{ "index": {}}
{ "ts": "2023-07-19T11:22:55+0200"}

I solve this by using the following DSL query, but I could only find the way to filter for a single starting prefix:

{
  "query": {
    "prefix": {
      "entityType.keyword": {
        "value": "1"
      }
    }
  }
}

So, I'm wondering how I could do this in KQL, or as a runtime field. I am also wondering how I would be able to filter out , say, strings ["0", "2"]. I'm sorry if this is in the documentation but I was not be able to find a suitable page describing my questions.

Thanks.