NPA-NXX - 816-840

This is the 816-840 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 816
3. 816-840

The 816-840 subcode mainly covers Kansas City in Jackson county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Missouri state. Many of the numbers in this subcode are Paging (Dedicated) registered to Mobilfone. We hear they employ a large number of people in the Missouri office.
Recently there have been an increase in reported calls, we've had over 674158 comments across our systems for the 816-840 subcode.