NPA-NXX - 518-721

This is the 518-721 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. 518
3. 518-721

The 518-721 subcode mainly covers Claverack in Columbia county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of New York state. Many of the numbers in this subcode are Regular Landline registered to Mid-hudson Communications. We hear they employ a large number of people in the New York office.
Recently there have been an increase in reported calls, we've had over 63096 comments across our systems for the 518-721 subcode.