NPA-NXX - 301-380

This is the 301-380 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!

The 301-380 subcode mainly covers Washington in Montgomery county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Maryland state. Many of the numbers in this subcode are Regular Landline registered to Verizon Communications. We hear they employ a large number of people in the Maryland office.
Recently there have been an increase in reported calls, we've had over 971777 comments across our systems for the 301-380 subcode.

Looking for a different number? Follow a link below to see our recently active.

909-638-2820 956-650-2978 570-338-4061 616-226-1901 727-547-8893
909-443-5845 206-966-5806 402-972-1575 586-443-4948 209-809-9255