Area Code 301 — Carriers, Line Types & Portability
Carrier breakdown and line-type data for area code 301 (MD), across 369 analyzed numbers. Useful for bulk-validating 301 calling lists and spotting VoIP/ported numbers before you dial or text.
Carriers in area code 301
| Carrier | Numbers analyzed |
|---|---|
| Verizon Wireless | 193 |
| AT&T | 86 |
| T-Mobile | 80 |
| Bandwidth.com | 5 |
| U.S. Cellular | 5 |
Line types in 301
| Line type | Numbers analyzed |
|---|---|
| WIRELESS | 284 |
| PCS | 80 |
| CLEC | 5 |
Top rate centers
| Rate center | Numbers analyzed |
|---|---|
| WSHNGTNZN3 | 147 |
| WSHNGTNZN2 | 54 |
| FREDERICK | 39 |
| HAGERSTOWN | 25 |
| WALDORF | 19 |
| LEONARDTN | 18 |
| GAITHERSBG | 16 |
| CUMBERLAND | 14 |
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