Local Calling Guide
Area code/prefix search
Switch: BLTMMDCHDS7
- Switch name:
- Switch type: 4E
- See all switches at this location
NPA-NXX | BLOCK | Rate Centre | Region | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|
443-231 | A | Essex | MD | 7421 AT&T LOCAL | 238 | |||
443-352 | A | Pikesville | MD | 7421 AT&T LOCAL | 238 | |||
443-425 | A | Parkville | MD | 7421 AT&T LOCAL | 238 | |||
443-456 | A | Edgewood | MD | 7421 AT&T LOCAL | 238 | |||
443-733 | A | Waterloo | MD | 7421 AT&T LOCAL | 238 | |||
443-760 | A | Aberdeen | MD | 7421 AT&T LOCAL | 236 | |||
443-883 | A | Glen Burnie | MD | 7421 AT&T LOCAL | 238 | |||
443-886 | A | Cockeysville | MD | 7421 AT&T LOCAL | 238 | |||
443-896 | A | Columbia | MD | 7421 AT&T LOCAL | 238 | |||
443-957 | A | Baltimore | MD | 7421 AT&T LOCAL | 238 | |||
443-987 | A | Bel Air | MD | 7421 AT&T LOCAL | 238 |
Last updated: Sun, 04 Apr 2021 19:28:27 UTC
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