Use segments. A filter block in a segment holds one Postcode range, so to include several ranges you put each range in its own segment and combine them.
Imagine you want to:
- Include companies with postcodes 122 40–122 50 and 133 10–133 40
- Exclude companies with postcodes 122 51–133 09
- Create a new segment (Segment A). Under Include contacts who match all of the following filters, click Companies, choose Postcode and enter 122 40 in From and 122 50 in To.
- Create another segment (Segment B). Under Include contacts who match any of the following filters, add Postcode with the range 133 10–133 40.
- In the same block of Segment B, click Contacts, choose Segments and select Segment A. Both filters must be in the any block. In the all block a contact has to match both ranges at once, and Segment B stays empty.
- To exclude postcodes 122 51–133 09, add Postcode with that range under Exclude contacts who match in Segment B.