NPA-NXX - 617-400

This is the 617-400 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. 617
3. 617-400

The 617-400 subcode mainly covers Roxbury in Suffolk county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Massachusetts state. Many of the numbers in this subcode are Regular Landline registered to Norfolk County Internet. We hear they employ a large number of people in the Massachusetts office.
Recently there have been an increase in reported calls, we've had over 722023 comments across our systems for the 617-400 subcode.