NPA-NXX - 443-540

This is the 443-540 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. 443
  3. 443-540

The 443-540 subcode mainly covers Baltimore in Baltimore 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 Cellular (Dedicated) registered to At&t Mobility. 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 620961 comments across our systems for the 443-540 subcode.

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

803-772-9530 570-234-7996 215-453-6487 517-617-2001 425-512-4279
417-655-1276 508-370-9902 601-397-3654 281-934-7671 270-275-3947
443-540-92XX
443-540-47XX
443-540-17XX
443-540-98XX
443-540-31XX
443-540-13XX
443-540-28XX
443-540-42XX
443-540-05XX
443-540-16XX
443-540-34XX
443-540-48XX
443-540-59XX
443-540-06XX
443-540-73XX
443-540-90XX
443-540-99XX
443-540-72XX


443-540-50XX
443-540-86XX
443-540-61XX
443-540-49XX
443-540-77XX
443-540-22XX
443-540-32XX
443-540-63XX
443-540-15XX
443-540-74XX
443-540-24XX
443-540-40XX
443-540-97XX
443-540-94XX
443-540-70XX
443-540-37XX
443-540-12XX
443-540-64XX
443-540-35XX
443-540-52XX
443-540-29XX
443-540-87XX
443-540-75XX
443-540-46XX
443-540-23XX
443-540-11XX
443-540-04XX
443-540-57XX
443-540-89XX
443-540-58XX
443-540-81XX
443-540-95XX
443-540-19XX
443-540-20XX
443-540-55XX
443-540-53XX
443-540-03XX
443-540-43XX
443-540-69XX
443-540-91XX
443-540-44XX
443-540-79XX
443-540-51XX
443-540-62XX
443-540-76XX
443-540-08XX
443-540-88XX
443-540-02XX
443-540-67XX
443-540-82XX