Home / Area 720 / Prefix 399

(720) 399 Phone Number Directory

Browse phone numbers under this exchange in Denver, Colorado. See carrier details, recent activity, and community feedback.

Enter last 4 digit numbers ex:720-399-XXXX

City: Denver
County: Denver
Carrier: Level 3 Communications Llc - Co
Line Type: Landline

Phone Numbers in This Prefix

These listings represent sample numbers in this exchange. Click any number to view detailed reports and community feedback. Showing 19–36 of 144 listings for this prefix.

Recent activity Landline

(720) 399-3696

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3716

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3736

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3756

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3776

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3796

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3816

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3836

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3856

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3876

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3896

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3916

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3936

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3956

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3976

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-3996

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-4016

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing
Recent activity Landline

(720) 399-4036

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
View listing