Baltimore-Washington Telephone (BWT) WARM
d/b/a Baltimore-Washington Telephone Company
Part of the Baltimore-Washington Telephone Company group. 2 OCNs across 2 states · 83 blocks combined.
312 Laurel Ave,
Laurel, MD 20707-4320
bwtel.com
2003-06-09
2015-06-23
Long shot, but worth calling.
Baltimore-Washington Telephone (BWT) issued these blocks a while back. Most of the numbers are probably already with customers, but it's worth calling any you're interested in. If a number isn't in service, it might still be available at Baltimore-Washington Telephone (BWT) or one of their resellers.
About Baltimore-Washington Telephone Company
Baltimore-Washington Telephone Company (BWT) is a small independent Competitive Local Exchange Carrier (CLEC) providing wholesale origination and termination services primarily to other telephone companies, CLECs, VoIP providers, and qualified enterprise customers. It operates as a 'carrier's carrier' with state-level authority, including provisional CLEC certification in Pennsylvania as of 2023 to serve territories of Verizon Pennsylvania LLC and Verizon North LLC. BWT holds 2 state-level Operating Company Numbers (OCNs) and has originated 83 1,000-number blocks.
- Headquarters: Laurel, MD
- Services: wholesale origination, wholesale termination, SIP interconnect, CLEC services
Sources: About BWT | Baltimore-Washington Telephone Company · Baltimore-Washington Telephone Company | Baltimore-Washington ... · Services | Baltimore-Washington Telephone Company · [PDF] Stephen - Pennsylvania Public Utility Commission
Carrier website
bwtel.com: opens in a new tab
HQ: Laurel, MD
Block portfolio at a glance
By age
- Recent (0). Last 18 mo
- Medium (0)
- Old (65)
- Undated (8)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Maryland MD · 73
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Sister OCNs in the Baltimore-Washington Telephone Company group
Same customer-facing carrier, different state-registered OCN. Combined stats are on the Baltimore-Washington Telephone Company group page.
| OCN | Company name on file | HQ state | Total | Recent |
|---|---|---|---|---|
| 782G | Baltimore-Washington Telephone Company - NY | MD | 10 | · |