Area code 227
1,137 number blocks indexed across 22 carriers.
States: MD (1,137)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 4036 | New Cingular Wireless PCS LLC - DC | Atlanta, GA | Wireless Carrier | 397 | 233 | att.com |
| 876D | Onvoy LLC - MD | Chicago, IL | Competitive Local Exchange Carrier | 241 | 126 | sinch.com |
| 6855 | Omnipoint Communications Cap Operations LLC | Cedar Knolls, NJ | Personal Communications Service (Wireless) | 172 | 105 | t-mobile.com |
| 6395 | Cellco Partnership dba Verizon Wireless - MD | Olathe, KS | Wireless Carrier | 103 | 62 | verizonwireless.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 22 | 14 | dish.com |
| 071F | Bandwidth.com CLEC LLC - MD | Cary, NC | Competitive Local Exchange Carrier | 32 | 5 | bandwidth.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 10 | 4 | hdcarrier.com |
| 7228 | MCImetro Access Transmission Services LLC - MD | Vienna, VA | Competitive Local Exchange Carrier | 8 | 4 | verizon.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 6 | 3 | brightlink.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 5 | 2 | telnyx.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 4 | 2 | att.com |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 2 | 2 | peerlessnetwork.com |
| 6119 | Level 3 Communications LLC - MD | Westminster, CO | Competitive Local Exchange Carrier | 3 | 1 | centurylink.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 52 | — | commio.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 43 | — | |
| MULT | Multiple OCN Listing | Administrative / Reserved | 13 | — | ||
| 530H | Wide Voice LLC - MD | Las Vegas, NV | Competitive Local Exchange Carrier | 10 | — | widevoice.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 5 | — | verizon.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 3 | — | brightlink.com |
| 475J | Callworks Corporation | Fair Oaks, TX | IP-Enabled Service / VoIP | 2 | — | callworks.me |
| 568G | Peerless Network of Maryland LLC | Chicago, IL | Competitive Local Exchange Carrier | 2 | — | peerlessnetwork.com |
| 7529 | Teleport Communications America LLC - DC | Staten Island, NY | Competitive Local Exchange Carrier | 2 | — | att.com |