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ALLEGIANCE TELECOM, INC. - MD
Operating Company Number (OCN): 8992
Is this carrier legit?
Carriers are telecom operating companies that own number blocks (NPA-NXX). A number showing this carrier does not guarantee the caller is that company — scam calls can spoof caller ID.
Ad Unit
Optional ad placement.Number blocks (sample)
| State | NPA | NXX | Rate center | Open |
|---|---|---|---|---|
| MD | 240 | 223 | WSHNGTNZN2 | Prefix |
| MD | 240 | 243 | GAITHERSBG | Prefix |
| MD | 240 | 247 | WSHNGTNZN3 | Prefix |
| MD | 240 | 260 | WSNG236Z14 | Prefix |
| MD | 240 | 268 | WSNGTNZN10 | Prefix |
| MD | 240 | 290 | WSNGTNZN11 | Prefix |
| MD | 240 | 306 | GAITHERSBG | Prefix |
| MD | 240 | 548 | WSNG236Z14 | Prefix |
| MD | 240 | 553 | WSNG236Z13 | Prefix |
| MD | 240 | 554 | LAUREL236 | Prefix |
| MD | 240 | 559 | ASHTON236 | Prefix |
| MD | 443 | 753 | WATERLO236 | Prefix |
Showing up to 2,000 blocks (cap for performance).
SEO keywords covered
carrier lookup • operating company number • ocn lookup • who owns this number • npa nxx • rate center
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