Local-number carriers in District of Columbia (DC)

← all states · area codes: 202 (5,199) · 771 (700)

Top carrier groups in District of Columbia

Multiple state-OCNs from the same brand are rolled up here. Bar length is total blocks; red overlay is recent activity in the last 18 months.

Onvoy688 / 37AT&T655 / 23Verizon1,853 / 12IP Horizon10 / 8T-Mobile1,150 / 5Dish Wireless11 / 5Onvoy Spectrum79 / 4TELNYX31 / 4HD Carrier13 / 2Wavenation2 / 2Bandwidth.com561 / 1Leap Telecom3 / 1
Show full table (25 groups)
GroupTypeOCNs in DCBlocksRecent
Onvoy Competitive Local Exchange Carrier 1 688 37
AT&T Wireless Carrier 3 655 23
Verizon Wireless Carrier 4 1,853 12
IP Horizon IP-Enabled Service / VoIP 1 10 8
T-Mobile Personal Communications Service (Wireless) 2 1,150 5
Dish Wireless Wireless Carrier 1 11 5
Onvoy Spectrum Wireless Carrier 1 79 4
TELNYX IP-Enabled Service / VoIP 1 31 4
HD Carrier IP-Enabled Service / VoIP 1 13 2
Wavenation IP-Enabled Service / VoIP 1 2 2
Bandwidth.com Competitive Local Exchange Carrier 1 561 1
Leap Telecom IP-Enabled Service / VoIP 1 3 1
Centurylink Competitive Local Exchange Carrier 3 308 ·
Windstream IP-Enabled Service / VoIP 1 212 ·
Comcast IP-Enabled Service / VoIP 1 92 ·
Peerless Network Competitive Local Exchange Carrier 1 42 ·
Brightlink Communications IP-Enabled Service / VoIP 2 31 ·
RCN Starpower Competitive Local Exchange Carrier 1 28 ·
MULTIPLE OCN LISTING Administrative / Reserved 1 27 ·
YMax Communications Competitive Local Exchange Carrier 1 21 ·
USA Mobility Wireless Carrier 1 14 ·
Wide Voice Competitive Local Exchange Carrier 2 11 ·
Intrado Communications Competitive Local Exchange Carrier 1 9 ·
Local Access Competitive Local Exchange Carrier 1 9 ·
Vonage Network IP-Enabled Service / VoIP 1 8 ·

Area codes in District of Columbia

Sized by total number blocks indexed in each area code. Click any NPA for its full carrier directory.

2025,199771700

All OCNs in District of Columbia

OCNCompanyGroupHQTypeBlocksRecentWebsite
850D Onvoy LLC - DC Onvoy Chicago Competitive Local Exchange Carrier 688 37 sinch.com
4036 New Cingular Wireless PCS LLC - DC AT&T Atlanta Wireless Carrier 457 20 att.com
6402 Cellco Partnership dba Verizon Wireless - DC Verizon Olathe Wireless Carrier 762 12 verizonwireless.com
515J IP Horizon LLC IP Horizon Orlando IP-Enabled Service / VoIP 10 8
6855 Omnipoint Communications Cap Operations LLC T-Mobile Cedar Knolls Personal Communications Service (Wireless) 761 5 t-mobile.com
490J Boost SubscriberCo LLC Dish Wireless Washington Wireless Carrier 11 5 dish.com
624H Onvoy Spectrum LLC Onvoy Spectrum Broomfield Wireless Carrier 79 4
073H Telnyx LLC TELNYX Chicago IP-Enabled Service / VoIP 31 4 telnyx.com
7529 Teleport Communications America LLC - DC AT&T Staten Island Competitive Local Exchange Carrier 196 3 att.com
321J HD Carrier LLC HD Carrier Henderson IP-Enabled Service / VoIP 13 2 hdcarrier.com
700J Wavenation LLC Wavenation Chicago IP-Enabled Service / VoIP 2 2 peerlessnetwork.com
074F Bandwidth.com CLEC LLC - DC Bandwidth.com Cary Competitive Local Exchange Carrier 561 1 bandwidth.com
616J Leap Telecom LLC Leap Telecom Denver IP-Enabled Service / VoIP 3 1 leap.tel
9211 Verizon Washington DC Inc Verizon Falls Church Regional Bell Operating Company 848 · verizon.com
5562 T-Mobile USA Inc T-Mobile Dallas Personal Communications Service (Wireless) 389 · metropcs.com
6117 Level 3 Communications LLC - DC Centurylink Westminster Competitive Local Exchange Carrier 273 · centurylink.com
7229 MCImetro Access Transmission Services LLC Verizon Vienna Competitive Local Exchange Carrier 239 · verizon.com
829J PAETEC iTel LLC Windstream Charlotte IP-Enabled Service / VoIP 212 ·
318J Comcast IP Phone LLC Comcast Philadelphia IP-Enabled Service / VoIP 92 · comcast.com
275F Peerless Network of the District of Columbia LLC - DC Peerless Network Chicago Competitive Local Exchange Carrier 42 · peerlessnetwork.com
2801 Level 3 Telecom of D.C. LLC - DC Centurylink Columbia Competitive Local Exchange Carrier 28 · centurylink.com
8831 Starpower Communications LLC - DC RCN Starpower Princeton Competitive Local Exchange Carrier 28 · astound.com
MULT Multiple OCN Listing MULTIPLE OCN LISTING Administrative / Reserved 27 ·
551G NUSO LLC Brightlink Communications Atlanta Wireless Carrier 26 · 365wireless.net
280E YMax Communications Corporation - DC YMax Communications Palm Beach Competitive Local Exchange Carrier 21 · ymaxcorp.com
6630 Spok Inc USA Mobility Plano Wireless Carrier 14 · spok.com
118H Local Access LLC - DC Local Access Windermere Competitive Local Exchange Carrier 9 ·
538H Wide Voice LLC - DC Wide Voice Las Vegas Competitive Local Exchange Carrier 9 · widevoice.com
812C Intrado Communications LLC Intrado Communications Bedminster Competitive Local Exchange Carrier 9 · att.com
197D Vonage America LLC Vonage Network Holmdel IP-Enabled Service / VoIP 8 · vonage.com
508J CenturyLink Communications LLC Centurylink Littleton IP-Enabled Service / VoIP 7 · centurylink.com
965H Fractel LLC Fractel Indialantic IP-Enabled Service / VoIP 7 · fractel.net
478J NUSO LLC Brightlink Communications Atlanta IP-Enabled Service / VoIP 5 · brightlink.com
598J Five9 InC Five9 San Ramon IP-Enabled Service / VoIP 4 · five9.com
645H Airus Inc - DC Airus Chicago Competitive Local Exchange Carrier 4 · airustel.com
8964 XO D.C. Inc Verizon Reston Competitive Local Exchange Carrier 4 · verizon.com
114J Exiant Communications LLC Exiant Eldersburg IP-Enabled Service / VoIP 2 · exiantcom.com
507J The Voice Application Network LLC Wide Voice El Segundo IP-Enabled Service / VoIP 2 · widevoice.com
513G Atlantech Online Inc - DC Atlantech Online Silver Spring Competitive Local Exchange Carrier 2 · atlantech.net
597F VOIP Innovations LLC Voip Street Pittsburgh IP-Enabled Service / VoIP 2 · voipstreet.com
7421 AT&T Local AT&T Bedminster Competitive Local Exchange Carrier 2 · att.com
879H Barr Tell USA Inc - DC Barr Tell USA Long Beach Competitive Local Exchange Carrier 2 · barrtell.com
939H Commio LLC Commio Austin IP-Enabled Service / VoIP 2 · commio.com
9748 American Messaging Services LLC American Messaging Services LLC Lewisville Wireless Carrier 2 · americanmessaging.net
996H Airespring Inc Airespring Van Nuys IP-Enabled Service / VoIP 2 · airespring.com
156J RCLEC Inc RCLEC Centennial IP-Enabled Service / VoIP 1 · rclec.com
6810 Redi-Call Communications Company Redi-Call Communications Georgetown Wireless Carrier 1 · redi-call.com