Home / Area 720 / Prefix 399
Prefix Lookup

(720) 399 Phone Number Lookup

Research phone numbers under this exchange in Denver, Colorado. Review carrier details, activity signals, and community caller feedback.

138number listings
0caller reports
8lookup pages

Phone Numbers in This Prefix

Browse numbers in this exchange and open any listing to view caller details, spam signals, and community feedback. Showing 1–18 of 138 listings for this prefix.

Frequently searched Landline

(720) 399-0545

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0565

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0585

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0605

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0625

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0645

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0665

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0685

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0705

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0725

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0745

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0765

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0785

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0805

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0825

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0845

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0865

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing
Frequently searched Landline

(720) 399-0885

Denver, Colorado

  • Carrier: Level 3 Communications Llc - Co
  • Exchange: 720-399
  • Report type: Reverse lookup profile
View listing

About this prefix

Area code 720 prefix 399 is organized as a reverse lookup section for Denver, Colorado. The page combines location metadata, carrier information, line type, number listings, and community activity in one place.

Public URLs use the exchange format 720-399, while each listing still maps back to the correct area code and prefix structure.