NPA-NXX - 631-978

This is the 631-978 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. 631
  3. 631-978

The 631-978 subcode mainly covers Port Jefferson in Suffolk 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 Xo 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 1493350 comments across our systems for the 631-978 subcode.

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

831-821-7365 585-361-6933 937-312-9178 508-857-8461 508-721-3810
601-292-5550 786-606-4794 301-710-6070 646-518-6884 407-608-6394
631-978-32XX
631-978-51XX
631-978-88XX
631-978-04XX
631-978-25XX
631-978-74XX
631-978-17XX
631-978-71XX
631-978-68XX
631-978-55XX
631-978-41XX
631-978-91XX
631-978-61XX
631-978-02XX
631-978-27XX
631-978-03XX
631-978-48XX
631-978-33XX
631-978-26XX
631-978-67XX
631-978-59XX
631-978-11XX
631-978-86XX
631-978-30XX
631-978-64XX
631-978-82XX
631-978-83XX
631-978-14XX
631-978-92XX
631-978-75XX
631-978-12XX
631-978-10XX
631-978-38XX
631-978-20XX
631-978-95XX
631-978-28XX
631-978-60XX
631-978-78XX
631-978-13XX
631-978-31XX
631-978-19XX
631-978-39XX
631-978-66XX
631-978-36XX
631-978-35XX
631-978-77XX
631-978-54XX
631-978-99XX
631-978-47XX
631-978-40XX
631-978-21XX
631-978-08XX
631-978-96XX
631-978-16XX