Area code 321
4,536 number blocks indexed across 43 carriers.
States: FL (4,536)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6214 | New Cingular Wireless PCS LLC - GA | Atlanta, GA | Wireless Carrier | 463 | 90 | att.com |
| 937C | Onvoy LLC - FL | Chicago, IL | Competitive Local Exchange Carrier | 555 | 80 | sinch.com |
| 6889 | Omnipoint Miami E License LLC | Bellevue, WA | Personal Communications Service (Wireless) | 719 | 32 | t-mobile.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 71 | 13 | |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 17 | 12 | |
| 6502 | Cellco Partnership dba Verizon Wireless - FL | Olathe, KS | Wireless Carrier | 243 | 11 | verizonwireless.com |
| 8300 | Teleport Communications America LLC - FL | Staten Island, NY | Competitive Local Exchange Carrier | 40 | 3 | att.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 37 | 1 | telnyx.com |
| 382G | Terra Nova Telecom Inc - FL | Key Largo, FL | Competitive Local Exchange Carrier | 5 | 1 | tntelecom.net |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 5 | 1 | dish.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 1 | 1 | brightlink.com |
| 899D | T-Mobile USA Inc | Richardson, TX | Personal Communications Service (Wireless) | 443 | · | metropcs.com |
| 982E | Bandwidth.com CLEC LLC - FL | Cary, NC | Competitive Local Exchange Carrier | 425 | · | bandwidth.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 293 | · | |
| 9417 | Bellsouth Telecommunications Inc dba Southern Bell Telephone & Telegraph | Atlanta, GA | Regional Bell Operating Company | 254 | · | att.com |
| 4802 | Level 3 Communications LLC - FL | Westminster, CO | Competitive Local Exchange Carrier | 232 | · | centurylink.com |
| 7448 | MCI Worldcom Communications Inc - FL | Vienna, VA | Competitive Local Exchange Carrier | 139 | · | verizon.com |
| 045L | BHN IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 121 | · | |
| 6701 | Aerial Communications Inc | Chicago, IL | Personal Communications Service (Wireless) | 102 | · | t-mobile.com |
| 902E | Peerless Network of Florida LLC - FL | Chicago, IL | Competitive Local Exchange Carrier | 94 | · | peerlessnetwork.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 43 | · | commio.com |
| 7635 | Level 3 Telecom of Florida LP - FL | Columbia, MD | Competitive Local Exchange Carrier | 40 | · | centurylink.com |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 31 | · | att.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 31 | · | fractel.net |
| 0341 | CenturyLink of Florida Inc (United) | Overland Park, KS | Incumbent Local Exchange Carrier | 21 | · | centurylink.com |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 16 | · | centurylink.com |
| 965G | Local Access LLC - FL | Windermere, FL | Competitive Local Exchange Carrier | 14 | · | |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | · | ||
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 12 | · | comcast.com |
| 8105 | Smart City Solutions II LLC | Lake Buena Vista, FL | Competitive Local Exchange Carrier | 10 | · | smartcity.com |
| 0330 | Smart City Telecommunications LLC dba Smart City Telecom | Lake Buena Vista, FL | Incumbent Local Exchange Carrier | 9 | · | smartcitytelecom.com |
| 7857 | Orlando Telephone Company Inc dba Summit Broadband | Orlando, FL | Competitive Local Exchange Carrier | 9 | · | summit-broadband.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 5 | · | vonage.com |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 4 | · | coretel.net |
| 206A | Fusion Cloud Services LLC | Coral Gables, FL | Competitive Local Exchange Carrier | 3 | · | cleartelecom.net |
| 6100 | XO Florida Inc | Reston, VA | Competitive Local Exchange Carrier | 3 | · | verizon.com |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 3 | · | spok.com |
| 6483 | American Messaging Services LLC | El Segundo, CA | Wireless Carrier | 2 | · | |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 2 | · | verizon.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 2 | · | att.com |
| 481F | CoreTel Florida Inc - FL | Annapolis, MD | Competitive Local Exchange Carrier | 1 | · | coretel.net |
| 6548 | ABC Paging City Beepers Inc | Miami, FL | Wireless Carrier | 1 | · | pcifl.com |
| 7391 | CenturyLink Communications LLC - FL | Overland Park, KS | Competitive Local Exchange Carrier | 1 | · | centurylink.com |