diff --git a/docs/configuration.md b/docs/configuration.md
index a5265de..ad9fffc 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -133,10 +133,50 @@ Parameters for this monitor module:
 
 #### monitorNewPrefix
 
-This monitor has the logic to detect unexpected change of configuration in the form of new prefixes announced by the correct AS.
+This monitor has the logic to detect unexpected change of configuration in the form of new more specific prefixes announced by the correct AS.
 In particular, it will monitor for all the declared prefixes and will trigger an alert when:
 * A sub-prefix of the monitored prefix starts to be announced by the same AS declared for the prefix.
 
+> Example: 
+> The prefixes list of BGPalerter has an entry such as:
+> ```yaml
+> 50.82.0.0/20:
+>    asn: 58302
+>    description: an example
+>    ignoreMorespecifics: false
+> ```
+> If in config.yml monitorNewPrefix is enabled you will receive alerts every time a more specific prefix (e.g. 50.82.4.0/24) is announced by AS58302.
+
+Parameters for this monitor module:
+
+|Parameter| Description| 
+|---|---|
+|thresholdMinPeers| Minimum number of peers that need to see the BGP update before to trigger an alert. |
+
+
+#### monitorAS
+
+This monitor will listen for all announcements produced by the monitored Autonomous Systems and will detect when a prefix, which is not in the monitored prefixes list, is announced.
+This is useful if you want to be alerted in case your AS starts announcing something you didn't intend to announce (e.g. misconfiguration, typo).
+
+
+> Example: 
+> The prefixes list of BGPalerter has an entry such as:
+> ```yaml
+> 50.82.0.0/20:
+>    asn: 58302
+>    description: an example
+>    ignoreMorespecifics: false
+> 
+> options:
+>  monitorASns:
+>    58302:
+>      group: default
+> ```
+> If in config.yml monitorAS is enabled, you will receive alerts every time a prefix not already part of the prefixes list is announced by AS58302.
+> If AS58302 starts announcing 45.230.23.0/24 an alert will be triggered. This happens because such prefix is not already monitored (it's not a sub prefix of 50.82.0.0/20).
+
+
 Parameters for this monitor module:
 
 |Parameter| Description|