Comporium Inc
All OCNs operating under this holding company.
| OCN | Company | HQ | Type | Total | Recent | Website |
|---|---|---|---|---|---|---|
| 9412 | Springboard Telecom LLC - NC | Rock Hill, SC | Competitive Local Exchange Carrier | 26 | — | comporium.com |
| 0531 | Lancaster Telephone Company | Rock Hill, SC | Incumbent Local Exchange Carrier | 22 | — | comporium.com |
| 0521 | Fort Mill Telephone Company | Rock Hill, SC | Incumbent Local Exchange Carrier | 16 | — | comporium.com |
| 0473 | Citizens Telephone Company | Brevard, NC | Incumbent Local Exchange Carrier | 6 | — | citizenstel.net |
| 4649 | Springboard Telecom LLC | Rock Hill, SC | Local Reseller | 0 | — | |
| 9288 | Springboard Telecom LLC - NC | Rock Hill, SC | Underlying Local Exchange Carrier | 0 | — |