RISING SUN — MD
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ARMSTRONG TEL. CO. OF MARYLAND | 0216 | 1 |
| CORE COMMUNICATIONS, INC.- MD | 2593 | 1 |
| BOOST SUBSCRIBERCO L.L.C. | 490J | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| ARMSTRONG TEL. CO. OF MARYLAND | 0216 | 1 |
| CORE COMMUNICATIONS, INC.- MD | 2593 | 1 |
| BOOST SUBSCRIBERCO L.L.C. | 490J | 1 |