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 1–18 of 144 listings for this prefix.

Recent activity Landline

(720) 399-3336

Denver, Colorado

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

(720) 399-3356

Denver, Colorado

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

(720) 399-3376

Denver, Colorado

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

(720) 399-3396

Denver, Colorado

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

(720) 399-3416

Denver, Colorado

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

(720) 399-3436

Denver, Colorado

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

(720) 399-3456

Denver, Colorado

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

(720) 399-3476

Denver, Colorado

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

(720) 399-3496

Denver, Colorado

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

(720) 399-3516

Denver, Colorado

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

(720) 399-3536

Denver, Colorado

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

(720) 399-3556

Denver, Colorado

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

(720) 399-3576

Denver, Colorado

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

(720) 399-3596

Denver, Colorado

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

(720) 399-3616

Denver, Colorado

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

(720) 399-3636

Denver, Colorado

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

(720) 399-3656

Denver, Colorado

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

(720) 399-3676

Denver, Colorado

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