Neighborhood Spoofing Filter

Neighborhood Spoofing Filter

This feature allows you to block Neighbor spoofed calls. Neighborhood spoofing is when you get a call from an unknown number that looks a lot like the numbers where you live. The incoming call will have the same area code and maybe the same prefix (the three numbers after the area code) as your number. Malicious actors do this hoping you'll think it's a neighbor and answer the call.

This can be found within a routeplan:


  1. Digit match: is number of digits that will be used to determine neighbor number. 3 digit means it will match on NPA level, 6 digit means it will be NPANXX level.
  2. Action: Currently the only option is to Block Traffic.
  3. SIP Code: When the action is performed, the defined SIP code is returned.
  4. SIP Reason: When the action is performed, the defined SIP reason is returned.

    • Related Articles

    • Short Duration Filter

      Enabling the Short Duration filter tells the system to record behavior and build profiles so that it can block ANIs that it understands to have a known history of above 20% short duration calls. Refer to the Filter Report under Reporting in the UI to ...
    • 487 Filter

      The 487 SIP code response indicates that the previous request was terminated by a user/application action. Example: A SIP User Agent Server (UAS) will send the 487 response code to the client after the client sends a CANCEL request for the original ...
    • Spam Filter

      This feature is for filtering/labelling spam traffic. The way it works is by dipping in industry specific spam databases and determining on the fly if the ANI is spam or not. There are 2 options, block such calls from completing OR labelling the call ...
    • Latest Push List for PE/ECO

      August 2022 Push List: DNC List: The National Do Not Call Registry is a list of phone numbers from consumers who have indicated their preference to limit the telemarketing calls they receive. The DNC list will be loaded into a 46 Labs managed ...
    • Trunk Group Level Blocking

      A new functionality to block customers from sending traffic to specific or ALL vendors while also allowing the ability to block vendors from receiving traffic from specific customers or ALL customers has been added. This Feature is currently only ...