Area code 720

7,245 number blocks indexed across 59 carriers.

States: CO (7,245)

Carriers

OCNCompanyHQTypeBlocksRecentWebsite
6010 New Cingular Wireless PCS LLC Kirkland, WA Wireless Carrier 704 20 att.com
026D Onvoy LLC - CO Chicago, IL Competitive Local Exchange Carrier 862 18 sinch.com
6567 Cellco Partnership dba Verizon Wireless - CO Olathe, KS Wireless Carrier 1,131 16 verizonwireless.com
078F Bandwidth.com CLEC LLC - CO Cary, NC Competitive Local Exchange Carrier 676 2 bandwidth.com
641H TDS Broadband Service LLC Madison, WI IP-Enabled Service / VoIP 2 2
6118 Level 3 Communications LLC - CO Westminster, CO Competitive Local Exchange Carrier 325 1 centurylink.com
732J NUSO LLC University City, MO IP-Enabled Service / VoIP 11 1 brightlink.com
145J Terra Nova Telecom Inc Lakewood Ranch, FL IP-Enabled Service / VoIP 2 1 terranova.net
6529 T-Mobile USA Inc Bellevue, WA Personal Communications Service (Wireless) 1,298 t-mobile.com
9636 Qwest Corporation Minneapolis, MN Regional Bell Operating Company 450 centurylink.com
7229 MCImetro Access Transmission Services LLC Vienna, VA Competitive Local Exchange Carrier 298 verizon.com
318J Comcast IP Phone LLC Philadelphia, PA IP-Enabled Service / VoIP 294 comcast.com
5562 T-Mobile USA Inc Dallas, TX Personal Communications Service (Wireless) 275 metropcs.com
7378 Teleport Communications America LLC - CO Staten Island, NY Competitive Local Exchange Carrier 192 att.com
278F Peerless Network of Colorado LLC - CO Chicago, IL Competitive Local Exchange Carrier 130 peerlessnetwork.com
3467 Electric Lightwave LLC dba Allstream Minneapolis, MN Competitive Local Exchange Carrier 89 allstream.com
4574 Level 3 Telecom of Colorado LLC - CO Littleton, CO Competitive Local Exchange Carrier 68 centurylink.com
829J PAETEC iTel LLC Charlotte, NC IP-Enabled Service / VoIP 66
624H Onvoy Spectrum LLC Broomfield, CO Wireless Carrier 64
508J CenturyLink Communications LLC Littleton, CO IP-Enabled Service / VoIP 50 centurylink.com
073H Telnyx LLC Chicago, IL IP-Enabled Service / VoIP 42 telnyx.com
321J HD Carrier LLC Henderson, NV IP-Enabled Service / VoIP 34 hdcarrier.com
7421 AT&T Local Bedminster, NJ Competitive Local Exchange Carrier 23 att.com
197D Vonage America LLC Holmdel, NJ IP-Enabled Service / VoIP 18 vonage.com
939H Commio LLC Austin, TX IP-Enabled Service / VoIP 18 commio.com
809C Intrado Communications LLC Bedminster, NJ Competitive Local Exchange Carrier 14 att.com
MULT Multiple OCN Listing Administrative / Reserved 14
616J Leap Telecom LLC Denver, CO IP-Enabled Service / VoIP 11 leap.tel
8980 XO Colorado LLC Reston, VA Competitive Local Exchange Carrier 11 verizon.com
490J Boost SubscriberCo LLC Washington, DC Wireless Carrier 7 dish.com
598J Five9 InC San Ramon, CA IP-Enabled Service / VoIP 5 five9.com
478J NUSO LLC Atlanta, GA IP-Enabled Service / VoIP 4 brightlink.com
515J IP Horizon LLC Orlando, FL IP-Enabled Service / VoIP 4
567G Teliax Inc - CO Denver, CO Competitive Local Exchange Carrier 4 teliax.com
5736 Commnet Wireless LLC Castle Rock, CO Wireless Carrier 4 commnetwireless.com
320E YMax Communications Corporation - CO Palm Beach, FL Competitive Local Exchange Carrier 3 ymaxcorp.com
551G NUSO LLC Atlanta, GA Wireless Carrier 3 365wireless.net
5972 Interlink Advertising Services Inc dba Forethought.Net - CO Denver, CO Competitive Local Exchange Carrier 3 forthought.net
019J Airus Inc - CO Chicago, IL Competitive Local Exchange Carrier 2 airustel.com
022H Commio LLC Austin, TX Wireless Carrier 2 commio.com
114J Exiant Communications LLC Eldersburg, MD IP-Enabled Service / VoIP 2 exiantcom.com
181J Advanced Telecom Solutions LLC Bethesda, MD IP-Enabled Service / VoIP 2 turbobridge.com
330B FastTrack Communications Inc - CO Durango, CO Competitive Local Exchange Carrier 2 fasttrack-communications.com
425J CSC Wireless LLC Long Island City, NY Wireless Carrier 2 alticeusa.com
436J Hadlo Technologies LLC Powell, OH IP-Enabled Service / VoIP 2 hadlotechnologies.com
506J Twilio International Inc San Francisco, CA IP-Enabled Service / VoIP 2 twilio.com
507J The Voice Application Network LLC El Segundo, CA IP-Enabled Service / VoIP 2 widevoice.com
557H Wide Voice LLC - CO Las Vegas, NV Competitive Local Exchange Carrier 2 widevoice.com
588A Zippy Tech Incorporated Durango, CO Competitive Access Provider 2 ziply.com
597F VOIP Innovations LLC Pittsburgh, PA IP-Enabled Service / VoIP 2 voipstreet.com
839J EON Telecom Inc Bellingham, WA IP-Enabled Service / VoIP 2
965H Fractel LLC Indialantic, FL IP-Enabled Service / VoIP 2 fractel.net
996H Airespring Inc Van Nuys, CA IP-Enabled Service / VoIP 2 airespring.com
016G Telstar Communications Inc Windsor, CO Wireless Carrier 1 xfinity.com
156J RCLEC Inc Centennial, CO IP-Enabled Service / VoIP 1 rclec.com
710A Allo Communications LLC - NE Imperial, NE Competitive Local Exchange Carrier 1 allophone.net
777H Pacoptic Networks LLC - CO Ashburn, VA Competitive Local Exchange Carrier 1 pacoptic.net
8540 Great West Services Ltd - CO Dallas, TX Competitive Local Exchange Carrier 1
9748 American Messaging Services LLC Lewisville, TX Wireless Carrier 1 americanmessaging.net